GS8161Z18DD-200 [GSI]

ZBT SRAM, 1MX18, 6.5ns, CMOS, PBGA165, FPBGA-165;
GS8161Z18DD-200
型号: GS8161Z18DD-200
厂家: GSI TECHNOLOGY    GSI TECHNOLOGY
描述:

ZBT SRAM, 1MX18, 6.5ns, CMOS, PBGA165, FPBGA-165

静态存储器 内存集成电路
文件: 总40页 (文件大小:546K)
中文:  中文翻译
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GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
400 MHz–150 MHz  
100-Pin TQFP & 165-Bump BGA  
Commercial Temp  
Industrial Temp  
18Mb Pipelined and Flow Through  
Synchronous NBT SRAM  
1.8 V, 2.5 V, or 3.3 V V  
DD  
1.8 V, 2.5 V, or 3.3 V I/O  
Because it is a synchronous device, address, data inputs, and  
read/ write control inputs are captured on the rising edge of the  
input clock. Burst order control (LBO) must be tied to a power  
rail for proper operation. Asynchronous inputs include the  
Sleep mode enable, ZZ and Output Enable. Output Enable can  
be used to override the synchronous control of the output  
drivers and turn the RAM's output drivers off at any time.  
Write cycles are internally self-timed and initiated by the rising  
edge of the clock input. This feature eliminates complex off-  
chip write pulse generation required by asynchronous SRAMs  
and simplifies input signal timing.  
Features  
• User-configurable Pipeline and Flow Through mode  
• NBT (No Bus Turn Around) functionality allows zero wait  
read-write-read bus utilization  
• Fully pin-compatible with both pipelined and flow through  
NtRAM™, NoBL™ and ZBT™ SRAMs  
• IEEE 1149.1 JTAG-compatible Boundary Scan  
• 1.8 V, 2.5 V, or 3.3 V +10%/–10% core power supply  
• LBO pin for Linear or Interleave Burst mode  
• Pin-compatible with 2Mb, 4Mb, 8Mb, 36Mb, 72Mb and  
144Mb devices  
• Byte write operation (9-bit Bytes)  
• 3 chip enable signals for easy depth expansion  
• ZZ pin for automatic power-down  
• JEDEC-standard 165-bump BGA package  
• RoHS-compliant 100-pin TQFP and 165-bump BGA  
packages available  
The GS8161Z18D(GT/D)/GS8161Z32D(D)/  
GS8161Z36D(GT/D) may be configured by the user to operate  
in Pipeline or Flow Through mode. Operating as a pipelined  
synchronous device, in addition to the rising-edge-triggered  
registers that capture input signals, the device incorporates a  
rising-edge-triggered output register. For read cycles, pipelined  
SRAM output data is temporarily stored by the edge triggered  
output register during the access cycle and then released to the  
output drivers at the next rising edge of clock.  
Functional Description  
The GS8161Z18D(GT/D)/GS8161Z32D(D)/  
GS8161Z36D(GT/D) is an 18Mbit Synchronous Static SRAM.  
GSI's NBT SRAMs, like ZBT, NtRAM, NoBL or other  
pipelined read/double late write or flow through read/single  
late write SRAMs, allow utilization of all available bus  
bandwidth by eliminating the need to insert deselect cycles  
when the device is switched from read to write cycles.  
The GS8161Z18D(GT/D)/GS8161Z32D(D)/  
GS8161Z36D(GT/D) is implemented with GSI's high  
performance CMOS technology and is available in JEDEC-  
standard 165-bump BGA package.  
Parameter Synopsis  
-400  
-375  
-333  
-250  
-200  
-150  
Unit  
t
2.5  
2.5  
2.5  
2.66  
2.5  
3.3  
2.5  
4.0  
3.0  
5.0  
3.8  
6.7  
ns  
ns  
KQ  
Pipeline  
3-1-1-1  
tCycle  
Curr (x18)  
Curr (x32/x36)  
370  
430  
350  
410  
310  
365  
250  
290  
210  
240  
185  
200  
mA  
mA  
t
4.0  
4.0  
4.2  
4.2  
4.5  
4.5  
5.5  
5.5  
6.5  
6.5  
7.5  
7.5  
ns  
ns  
KQ  
Flow  
Through  
2-1-1-1  
tCycle  
Curr (x18)  
Curr (x32/x36)  
275  
315  
265  
300  
255  
285  
220  
250  
205  
225  
190  
205  
mA  
mA  
Rev: 1.03b 9/2013  
1/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
GS8161Z18DT Pinout (Package T)  
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
A
NC  
NC  
NC  
1
80  
2
79  
NC  
NC  
3
78  
V
V
V
NC  
DQPA  
DQA  
DQA  
V
V
DQA  
DQA5  
V
NC  
V
ZZ  
DQA  
DQA  
V
4
DDQ  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
DDQ  
V
5
SS  
SS  
NC  
NC  
6
7
8
DQB  
DQB  
V
V
DQB  
9
1M x 18  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
SS  
SS  
Top View  
DDQ  
DDQ  
DQB  
FT  
SS  
V
DD  
NC  
DD  
V
SS  
DQB  
DQB  
V
DDQ  
DDQ  
V
V
SS  
SS  
DQA  
DQA  
NC  
NC  
V
DQB  
DQB  
DQPB  
NC  
V
SS  
SS  
V
V
DDQ  
DDQ  
NC  
NC  
NC  
NC  
NC  
NC  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
Rev: 1.03b 9/2013  
2/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
GS8161Z36DT Pinout (Package T)  
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
DQPB  
DQB  
DQPC  
DQC  
1
80  
2
79  
DQB  
DQC  
3
78  
V
V
V
DQB  
DQB  
DQB  
DQB  
V
V
DQB  
DQB  
V
NC  
V
ZZ  
DQA  
DQA  
V
4
DDQ  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
DDQ  
SS  
V
5
SS  
DQC  
DQC  
DQC  
DQC  
V
V
DQC  
DQC  
FT  
6
7
8
9
512K x 36  
Top View  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
SS  
SS  
DDQ  
DDQ  
SS  
V
DD  
NC  
DD  
V
DQD  
DQD  
SS  
V
DDQ  
DDQ  
V
V
SS  
SS  
DQA  
DQA  
DQA  
DQA  
V
V
DQA  
DQA  
DQPA  
DQD  
DQD  
DQD  
DQD  
V
SS  
SS  
V
DQD  
DQD  
DQPD  
DDQ  
DDQ  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
Rev: 1.03b 9/2013  
3/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
100-Pin TQFP Pin Descriptions  
Symbol  
Type  
In  
Description  
Burst Address Inputs; Preload the burst counter  
Address Inputs  
A0, A1  
A
In  
CK  
In  
Clock Input Signal  
BA  
In  
Byte Write signal for data inputs DQA1–DQA9; active low  
Byte Write signal for data inputs DQB1–DQB9; active low  
Byte Write signal for data inputs DQC1–DQC9; active low  
Byte Write signal for data inputs DQD1–DQD9; active low  
Write Enable; active low  
BB  
In  
BC  
In  
BD  
W
In  
In  
E1  
In  
Chip Enable; active low  
E2  
In  
Chip Enable—Active High. For self decoded depth expansion  
Chip Enable—Active Low. For self decoded depth expansion  
Output Enable; active low  
E3  
In  
G
In  
ADV  
In  
Advance/Load; Burst address counter control pin  
Clock Input Buffer Enable; active low  
No Connect  
CKE  
In  
NC  
I/O  
I/O  
I/O  
I/O  
In  
DQA, DQPA  
DQB, DQPB  
DQC, DQPC  
DQD, DQPD  
ZZ  
Byte A Data Input and Output pins  
Byte B Data Input and Output pins  
Byte C Data Input and Output pins  
Byte D Data Input and Output pins  
Power down control; active high  
FT  
In  
Pipeline/Flow Through Mode Control; active low  
Linear Burst Order; active low.  
LBO  
In  
MCH  
TMS  
Must Connect High (165 BGA only)  
Scan Test Mode Select  
Rev: 1.03b 9/2013  
4/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
100-Pin TQFP Pin Descriptions  
Symbol  
TDI  
Type  
Description  
Scan Test Data In  
Scan Test Data Out  
Scan Test Clock  
TDO  
TCK  
I
Scan Test Mode Select  
Scan Test Data In  
Scan Test Data Out  
Scan Test Clock  
TMS  
TDI  
I
O
I
TDO  
TCK  
V
In  
In  
In  
Core power supply  
DD  
V
Ground  
SS  
V
Output driver power supply  
DDQ  
Rev: 1.03b 9/2013  
5/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
165 Bump BGA—x18 Commom I/O—Top View (Package D)  
1
2
3
4
5
6
7
8
9
10  
A
11  
A
A
B
C
D
E
F
NC  
A
E1  
BB  
NC  
E3  
CKE  
ADV  
A
A
B
C
D
E
F
NC  
NC  
A
E2  
NC  
BA  
CK  
W
G
A
A
NC  
NC  
NC  
NC  
NC  
NC  
DQA  
DQA  
DQA  
DQA  
NC  
A
NC  
DQA  
DQA  
DQA  
DQA  
DQA  
ZZ  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
NC  
DQB  
DQB  
DQB  
DQB  
MCH  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
NC  
NC  
G
H
J
NC  
G
H
J
FT  
NC  
NC  
DQB  
DQB  
DQB  
DQB  
DQB  
NC  
V
V
NC  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
K
L
NC  
V
V
V
V
V
V
V
V
NC  
K
L
NC  
NC  
M
N
P
R
NC  
NC  
M
N
P
R
NC  
V
NC  
TDI  
NC  
A1  
A0  
NC  
V
NC  
DDQ  
SS  
SS  
DDQ  
NC  
A
A
A
TDO  
TCK  
A
A
A
NC  
LBO  
NC  
A
TMS  
A
A
A
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch  
Rev: 1.03b 9/2013  
6/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
165 Bump BGA—x32 Common I/O—Top View (Package D)  
1
2
3
4
5
6
7
8
9
10  
A
11  
A
B
C
D
E
F
NC  
A
E1  
BC  
BB  
E3  
CKE  
ADV  
A
NC  
A
B
C
D
E
F
NC  
NC  
A
E2  
BD  
BA  
CK  
W
G
A
A
NC  
NC  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
NC  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DQC  
DQC  
DQC  
DQC  
FT  
DQC  
DQC  
DQC  
DQC  
MCH  
DQD  
DQD  
DQD  
DQD  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DQB  
DQB  
DQB  
DQB  
NC  
DQB  
DQB  
DQB  
DQB  
ZZ  
G
H
J
G
H
J
NC  
NC  
DQD  
DQD  
DQD  
DQD  
NC  
V
V
DQA  
DQA  
DQA  
DQA  
NC  
DQA  
DQA  
DQA  
DQA  
NC  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
K
L
V
V
V
V
V
V
V
V
K
L
M
N
P
R
M
N
P
R
V
NC  
TDI  
NC  
A1  
A0  
NC  
V
SS  
DDQ  
SS  
DDQ  
NC  
NC  
A
A
A
TDO  
TCK  
A
A
A
A
NC  
LBO  
NC  
A
TMS  
A
A
A
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch  
Rev: 1.03b 9/2013  
7/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
165 Bump BGA—x36 Common I/O—Top View (Package D)  
1
2
3
4
5
6
7
8
9
10  
A
11  
A
B
C
D
E
F
NC  
A
E1  
BC  
BB  
E3  
CKE  
ADV  
A
NC  
A
B
C
D
E
F
NC  
A
E2  
BD  
BA  
CK  
W
G
A
A
NC  
DQB  
DQB  
DQB  
DQB  
DQB  
ZZ  
DQC  
DQC  
DQC  
DQC  
DQC  
FT  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
NC  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
SS  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DQC  
DQC  
DQC  
DQC  
MCH  
DQD  
DQD  
DQD  
DQD  
NC  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DQB  
DQB  
DQB  
DQB  
NC  
G
H
J
G
H
J
NC  
NC  
DQD  
DQD  
DQD  
DQD  
DQD  
NC  
V
V
DQA  
DQA  
DQA  
DQA  
NC  
DQA  
DQA  
DQA  
DQA  
DQA  
NC  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
K
L
V
V
V
V
V
V
V
V
K
L
M
N
P
R
M
N
P
R
V
NC  
TDI  
NC  
A1  
A0  
NC  
V
SS  
DDQ  
SS  
DDQ  
NC  
A
A
A
TDO  
TCK  
A
A
A
A
LBO  
NC  
A
TMS  
A
A
A
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch  
Rev: 1.03b 9/2013  
8/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
GS8161Z18/32/36D 165-Bump BGA Pin Description  
Symbol  
A0, A1  
An  
Type  
Description  
Address field LSBs and Address Counter Preset Inputs  
Address Inputs  
I
I
DQA  
DQB  
DQC  
DQD  
I/O  
Data Input and Output pins  
BA, BB, BC, BD  
I
I
Byte Write Enable for DQA, DQB, DQC, DQD I/Os; active low  
Clock Input Signal; active high  
Clock Enable; active low  
CK  
CKE  
W
I
I
Write Enable; active low  
E1  
I
Chip Enable; active low  
E3  
I
Chip Enable; active low  
E2  
I
Chip Enable; active high  
FT  
I
Flow Through / Pipeline Mode Control  
Output Enable; active low  
Burst address counter advance enable; active high  
Sleep mode control; active high  
Linear Burst Order mode; active low  
Scan Test Mode Select  
G
I
ADV  
ZZ  
I
I
LBO  
TMS  
TDI  
TDO  
TCK  
MCH  
I
I
I
Scan Test Data In  
O
I
Scan Test Data Out  
Scan Test Clock  
I
Must Connect High  
V
Core power supply  
DD  
V
I
I
I/O and Core Ground  
Output driver power supply  
No Connect  
SS  
V
DDQ  
NC  
Rev: 1.03b 9/2013  
9/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
GS8161Z18/32/36D NBT SRAM Functional Block Diagram  
s
n s e e S A m p  
s
i t r e W D r i v e r  
Rev: 1.03b 9/2013  
10/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Functional Details  
Clocking  
Deassertion of the Clock Enable (CKE) input blocks the Clock input from reaching the RAM's internal circuits. It may be used to  
suspend RAM operations. Failure to observe Clock Enable set-up or hold requirements will result in erratic operation.  
Pipeline Mode Read and Write Operations  
All inputs (with the exception of Output Enable, Linear Burst Order and Sleep) are synchronized to rising clock edges. Single cycle  
read and write operations must be initiated with the Advance/Load pin (ADV) held low, in order to load the new address. Device  
activation is accomplished by asserting all three of the Chip Enable inputs (E1, E2 and E3). Deassertion of any one of the Enable  
inputs will deactivate the device.  
Function  
Read  
W
H
L
BA  
X
BB  
X
BC  
X
BD  
X
Write Byte “a”  
Write Byte “b”  
Write Byte “c”  
Write Byte “d”  
Write all Bytes  
Write Abort/NOP  
L
H
L
H
H
L
H
H
H
L
L
H
H
H
L
L
H
H
L
L
H
L
L
L
L
H
H
H
H
Read operation is initiated when the following conditions are satisfied at the rising edge of clock: CKE is asserted low, all three  
chip enables (E1, E2, and E3) are active, the write enable input signals W is deasserted high, and ADV is asserted low. The address  
presented to the address inputs is latched in to address register and presented to the memory core and control logic. The control  
logic determines that a read access is in progress and allows the requested data to propagate to the input of the output register. At  
the next rising edge of clock the read data is allowed to propagate through the output register and onto the output pins.  
Write operation occurs when the RAM is selected, CKE is active and the write input is sampled low at the rising edge of clock. The  
Byte Write Enable inputs (BA, BB, BC & BD) determine which bytes will be written. All or none may be activated. A write cycle  
with no Byte Write inputs active is a no-op cycle. The pipelined NBT SRAM provides double late write functionality, matching the  
write command versus data pipeline length (2 cycles) to the read command versus data pipeline length (2 cycles). At the first rising  
edge of clock, Enable, Write, Byte Write(s), and Address are registered. The Data In associated with that address is required at the  
third rising edge of clock.  
Flow Through Mode Read and Write Operations  
Operation of the RAM in Flow Through mode is very similar to operations in Pipeline mode. Activation of a read cycle and the use  
of the Burst Address Counter is identical. In Flow Through mode the device may begin driving out new data immediately after new  
address are clocked into the RAM, rather than holding new data until the following (second) clock edge. Therefore, in Flow  
Through mode the read pipeline is one cycle shorter than in Pipeline mode.  
Write operations are initiated in the same way, but differ in that the write pipeline is one cycle shorter as well, preserving the ability  
to turn the bus from reads to writes without inserting any dead cycles. While the pipelined NBT RAMs implement a double late  
write protocol, in Flow Through mode a single late write protocol mode is observed. Therefore, in Flow Through mode, address  
and control are registered on the first rising edge of clock and data in is required at the data input pins at the second rising edge of  
clock.  
Rev: 1.03b 9/2013  
11/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Synchronous Truth Table  
Operation  
Read Cycle, Begin Burst  
Read Cycle, Continue Burst  
NOP/Read, Begin Burst  
Dummy Read, Continue Burst  
Write Cycle, Begin Burst  
Write Abort, Begin Burst  
Write Cycle, Continue Burst  
Write Abort, Continue Burst  
Deselect Cycle, Power Down  
Deselect Cycle, Power Down  
Deselect Cycle, Power Down  
Deselect Cycle, Continue  
Sleep Mode  
Type  
R
Address  
External  
Next  
CK CKE ADV  
W
H
X
H
X
L
Bx E1 E2 E3  
G
L
ZZ  
L
L
L
L
L
L
L
L
L
L
L
L
H
L
DQ  
Q
Notes  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
L-H  
X
L
L
L
L
L
L
L
L
L
L
L
L
X
H
L
H
L
X
X
X
X
L
L
X
L
H
X
H
X
H
H
X
X
X
X
L
L
X
L
B
L
Q
1,10  
2
1,2,10  
3
R
External  
Next  
H
H
X
X
X
X
X
X
X
X
X
X
High-Z  
High-Z  
D
B
H
L
X
L
X
L
W
D
External  
None  
1
L
L
H
L
L
L
High-Z  
D
1,3,10  
B
Next  
H
H
L
X
X
X
X
X
X
X
X
X
X
H
X
X
X
X
X
X
X
X
H
X
X
X
X
B
Next  
H
X
X
X
X
X
X
High-Z 1,2,3,10  
High-Z  
D
None  
D
None  
L
High-Z  
D
None  
L
High-Z  
1
4
D
None  
H
X
X
X
X
X
High-Z  
High-Z  
-
None  
Clock Edge Ignore, Stall  
Current  
L-H  
Notes:  
1. Continue Burst cycles, whether read or write, use the same control inputs. A Deselect continue cycle can only be entered into if a Deselect  
cycle is executed first.  
2. Dummy Read and Write abort can be considered NOPs because the SRAM performs no operation. A Write abort occurs when the W pin is  
sampled low but no Byte Write pins are active so no write operation is performed.  
3. G can be wired low to minimize the number of control signals provided to the SRAM. Output drivers will automatically turn off during write  
cycles.  
4. If CKE High occurs during a pipelined read cycle, the DQ bus will remain active (Low Z). If CKE High occurs during a write cycle, the bus  
will remain in High Z.  
5. X = Don’t Care; H = Logic High; L = Logic Low; Bx = High = All Byte Write signals are high; Bx = Low = One or more Byte/Write signals  
are Low  
6. All inputs, except G and ZZ must meet setup and hold times of rising clock edge.  
7. Wait states can be inserted by setting CKE high.  
8. This device contains circuitry that ensures all outputs are in High Z during power-up.  
9. A 2-bit burst counter is incorporated.  
10. The address counter is incriminated for all Burst continue cycles.  
Rev: 1.03b 9/2013  
12/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Pipelined and Flow Through Read Write Control State Diagram  
D
B
Deselect  
R
D
D
W
New Read  
New Write  
R
R
W
B
B
R
W
W
R
Burst Read  
Burst Write  
B
B
D
D
Key  
Notes:  
Input Command Code  
1. The Hold command (CKE Low) is not  
shown because it prevents any state change.  
ƒ
Transition  
2. W, R, B, and D represent input command  
codes as indicated in the Synchronous Truth Table.  
Current State (n)  
Next State (n+1)  
n
n+1  
n+2  
n+3  
Clock (CK)  
Command  
ƒ
ƒ
ƒ
ƒ
Current State  
Next State  
Current State and Next State Definition for Pipelined and Flow Through Read/Write Control State Diagram  
Rev: 1.03b 9/2013  
13/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Pipeline Mode Data I/O State Diagram  
Intermediate  
Intermediate  
R
W
B
Intermediate  
B
R
Data Out  
(Q Valid)  
High Z  
(Data In)  
W
D
Intermediate  
D
Intermediate  
W
R
High Z  
B
D
Intermediate  
Key  
Notes:  
Input Command Code  
1. The Hold command (CKE Low) is not  
shown because it prevents any state change.  
ƒ
Transition  
Transition  
2. W, R, B, and D represent input command  
codes as indicated in the Truth Tables.  
Current State (n)  
Next State (n+2)  
Intermediate State (N+1)  
n
n+1  
n+2  
n+3  
Clock (CK)  
Command  
ƒ
ƒ
ƒ
ƒ
Intermediate  
State  
Current State  
Next State  
Current State and Next State Definition for Pipeline Mode Data I/O State Diagram  
Rev: 1.03b 9/2013  
14/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Flow Through Mode Data I/O State Diagram  
R
W
B
B
R
Data Out  
(Q Valid)  
High Z  
(Data In)  
W
D
D
W
R
High Z  
B
D
Key  
Notes:  
Input Command Code  
1. The Hold command (CKE Low) is not  
shown because it prevents any state change.  
ƒ
Transition  
2. W, R, B, and D represent input command  
codes as indicated in the Truth Tables.  
Current State (n)  
Next State (n+1)  
n
n+1  
n+2  
n+3  
Clock (CK)  
Command  
ƒ
ƒ
ƒ
ƒ
Current State  
Next State  
Current State and Next State Definition for: Pipeline and Flow through Read Write Control State Diagram  
Rev: 1.03b 9/2013  
15/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Burst Cycles  
Although NBT RAMs are designed to sustain 100% bus bandwidth by eliminating turnaround cycle when there is transition from  
read to write, multiple back-to-back reads or writes may also be performed. NBT SRAMs provide an on-chip burst address  
generator that can be utilized, if desired, to further simplify burst read or write implementations. The ADV control pin, when  
driven high, commands the SRAM to advance the internal address counter and use the counter generated address to read or write  
the SRAM. The starting address for the first cycle in a burst cycle series is loaded into the SRAM by driving the ADV pin low, into  
Load mode.  
Burst Order  
The burst address counter wraps around to its initial state after four addresses (the loaded address and three more) have been  
accessed. The burst sequence is determined by the state of the Linear Burst Order pin (LBO). When this pin is low, a linear burst  
sequence is selected. When the RAM is installed with the LBO pin tied high, Interleaved burst sequence is selected. See the tables  
below for details.  
Mode Pin Functions  
Mode Name  
Pin Name  
State  
Function  
Linear Burst  
Interleaved Burst  
Flow Through  
Pipeline  
L
Burst Order Control  
LBO  
H
L
Output Register Control  
Power Down Control  
FT  
ZZ  
H or NC  
L or NC  
H
Active  
Standby, IDD = ISB  
Note:  
There is a pull-up device on the FT pin and a pull-down device on the ZZ pin , so this input pin can be unconnected and the chip will operate in  
the default states as specified in the above tables.  
Burst Counter Sequences  
Linear Burst Sequence  
Interleaved Burst Sequence  
A[1:0]  
00  
A[1:0]  
01  
A[1:0]  
10  
A[1:0]  
11  
A[1:0]  
A[1:0]  
01  
A[1:0]  
10  
A[1:0]  
11  
1st address  
2nd address  
3rd address  
4th address  
1st address  
2nd address  
3rd address  
4th address  
00  
01  
10  
11  
01  
10  
11  
10  
11  
00  
00  
11  
10  
11  
00  
01  
11  
00  
01  
00  
01  
10  
10  
01  
00  
Note:  
The burst counter wraps to initial state on the 5th clock.  
Note:  
The burst counter wraps to initial state on the 5th clock.  
Rev: 1.03b 9/2013  
16/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Sleep Mode  
During normal operation, ZZ must be pulled low, either by the user or by it’s internal pull down resistor. When ZZ is pulled high,  
the SRAM will enter a Power Sleep mode after 2 cycles. At this time, internal state of the SRAM is preserved. When ZZ returns to  
low, the SRAM operates normally after ZZ recovery time.  
Sleep mode is a low current, power-down mode in which the device is deselected and current is reduced to I 2. The duration of  
SB  
Sleep mode is dictated by the length of time the ZZ is in a high state. After entering Sleep mode, all inputs except ZZ become  
disabled and all outputs go to High-Z The ZZ pin is an asynchronous, active high input that causes the device to enter Sleep mode.  
When the ZZ pin is driven high, I 2 is guaranteed after the time tZZI is met. Because ZZ is an asynchronous input, pending  
SB  
operations or operations in progress may not be properly completed if ZZ is asserted. Therefore, Sleep mode must not be initiated  
until valid pending operations are completed. Similarly, when exiting Sleep mode during tZZR, only a Deselect or Read commands  
may be applied while the SRAM is recovering from Sleep mode.  
Sleep Mode Timing Diagram  
tKH  
tKC  
tKL  
CK  
ZZ  
tZZR  
tZZS  
tZZH  
Designing for Compatibility  
The GSI NBT SRAMs offer users a configurable selection between Flow Through mode and Pipelinemode via the FT signal found  
on Pin 14. Not all vendors offer this option, however most mark Pin 14 as V or V  
on pipelined parts and V on flow  
DD  
DDQ  
SS  
through parts. GSI NBT SRAMs are fully compatible with these sockets.  
Rev: 1.03b 9/2013  
17/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Absolute Maximum Ratings  
(All voltages reference to V  
)
SS  
Symbol  
VDD  
VDDQ  
VI/O  
Description  
Value  
Unit  
V
Voltage on VDD Pins  
Voltage in VDDQ Pins  
0.5 to 4.6  
0.5 to VDD  
V
0.5 to VDD +0.5 (4.6 V max.)  
0.5 to VDD +0.5 (4.6 V max.)  
Voltage on I/O Pins  
Voltage on Other Input Pins  
Input Current on Any Pin  
Output Current on Any I/O Pin  
Package Power Dissipation  
Storage Temperature  
V
VIN  
V
IIN  
+/20  
+/20  
mA  
mA  
W
IOUT  
PD  
1.5  
oC  
oC  
TSTG  
55 to 125  
55 to 125  
TBIAS  
Temperature Under Bias  
Note:  
Permanent damage to the device may occur if the Absolute Maximum Ratings are exceeded. Operation should be restricted to Recommended  
Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of  
this component.  
Power Supply Voltage Ranges  
Parameter  
Symbol  
VDD3  
Min.  
3.0  
Typ.  
3.3  
Max.  
3.6  
Unit  
V
3.3 V Supply Voltage  
VDD2  
2.5 V Supply Voltage  
2.3  
2.5  
2.7  
V
3.3 V VDDQ I/O Supply Voltage  
2.5 V VDDQ I/O Supply Voltage  
VDDQ3  
VDDQ2  
3.0  
3.3  
3.6  
V
2.3  
2.5  
2.7  
V
V
Range Logic Levels  
DD3  
Parameter  
Symbol  
VIH  
Min.  
2.0  
Typ.  
Max.  
Unit  
V
VDD + 0.3  
Input High Voltage  
Input Low Voltage  
VIL  
0.3  
0.8  
V
Notes:  
1.  
V
(max) must be met for any instantaneous value of V .  
DD  
IH  
2.  
V
needs to power-up before or at the same time as V  
to make sure V (max) is not exceeded.  
IH  
DD  
DDQ  
Rev: 1.03b 9/2013  
18/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
V
Range Logic Levels  
DD2  
Parameter  
Symbol  
VIH  
Min.  
Typ.  
Max.  
Unit  
V
0.6*VDD  
VDD + 0.3  
0.3*VDD  
Input High Voltage  
Input Low Voltage  
VIL  
0.3  
V
Notes:  
1.  
V
(max) must be met for any instantaneous value of V .  
DD  
IH  
2.  
V
needs to power-up before or at the same time as V  
to make sure V (max) is not exceeded.  
IH  
DD  
DDQ  
Recommended Operating Temperatures  
Parameter  
Symbol  
Min.  
0
Typ.  
25  
Max.  
70  
Unit  
C  
TA  
TA  
Ambient Temperature (Commercial Range Versions)  
Ambient Temperature (Industrial Range Versions)*  
40  
25  
85  
C  
Note:  
* The part numbers of Industrial Temperature Range versions end with the character “I”. Unless otherwise noted, all performance specifications  
quoted are evaluated for worst case in the temperature range marked on the device.  
Thermal Impedance  
Test PCB  
Substrate  
JA (C°/W)  
Airflow = 0 m/s  
JA (C°/W)  
Airflow = 1 m/s  
JA (C°/W)  
Airflow = 2 m/s  
Package  
JB (C°/W)  
JC (C°/W)  
100 TQFP  
165 BGA  
4-layer  
4-layer  
35.7  
31.0  
29.4  
27.0  
8.4  
27.47  
24.14  
23.10  
15.27  
5.44  
Notes:  
1. Thermal Impedance data is based on a number of samples from multiple lots and should be viewed as a typical number.  
2. Please refer to JEDEC standard JESD51-6.  
3. The characteristics of the test fixture PCB influence reported thermal characteristics of the device. Be advised that a good thermal path to  
the PCB can result in cooling or heating of the RAM depending on PCB temperature.  
Undershoot Measurement and Timing  
Overshoot Measurement and Timing  
V
IH  
20% tKC  
V
+ 2.0 V  
DD  
V
SS  
50%  
50%  
V
DD  
V
2.0 V  
SS  
20% tKC  
V
IL  
Note:  
Input Under/overshoot voltage must be 2 V > Vi < V +2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.  
DDn  
Rev: 1.03b 9/2013  
19/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Capacitance  
o
(T = 25 C, f = 1 MHZ, V = 2.5 V)  
A
DD  
Parameter  
Symbol  
CIN  
Test conditions  
VIN = 0 V  
Typ.  
Max.  
Unit  
pF  
Input Capacitance  
4
6
5
7
CI/O  
VOUT = 0 V  
Input/Output Capacitance  
pF  
Note:  
These parameters are sample tested.  
AC Test Conditions  
Parameter  
Conditions  
VDD – 0.2 V  
Input high level  
Input low level  
0.2 V  
1 V/ns  
VDD/2  
Input slew rate  
Input reference level  
VDDQ/2  
Output reference level  
Output load  
Fig. 1  
Notes:  
1. Include scope and jig capacitance.  
2. Test conditions as specified with output loading as shown in Fig. 1 unless otherwise noted.  
3. Device is deselected as defined by the Truth Table.  
Output Load 1  
DQ  
*
50  
30pF  
V
DDQ/2  
* Distributed Test Jig Capacitance  
Rev: 1.03b 9/2013  
20/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
DC Electrical Characteristics  
Parameter  
Symbol  
Test Conditions  
Min  
Max  
Input Leakage Current  
(except mode pins)  
IIL  
VIN = 0 to VDD  
1 uA  
1 uA  
VDD VIN VIH  
0 V VIN VIH  
1 uA  
1 uA  
1 uA  
100 uA  
IIN1  
ZZ Input Current  
FT Input Current  
VDD VIN VIL  
0 V VIN VIL  
100 uA  
1 uA  
1 uA  
1 uA  
IIN2  
IOL  
Output Disable, VOUT = 0 to VDD  
IOH = 8 mA, VDDQ = 2.375 V  
IOH = 8 mA, VDDQ = 3.135 V  
IOL = 8 mA  
Output Leakage Current  
Output High Voltage  
Output High Voltage  
Output Low Voltage  
1 uA  
1.7 V  
2.4 V  
1 uA  
VOH2  
VOH3  
VOL  
0.4 V  
Rev: 1.03b 9/2013  
21/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Rev: 1.03b 9/2013  
22/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
AC Electrical Characteristics  
-400  
-375  
-333  
-250  
-200  
-150  
Parameter  
Symbol  
Min Max Min Max Min Max Min Max Min Max Min Max  
Clock Cycle Time  
tKC  
tKQ  
2.5  
2.5  
4.0  
2.66  
2.5  
4.2  
3.3  
2.5  
4.5  
4.0  
2.5  
5.5  
5.0  
3.0  
6.5  
6.7  
ns  
Clock to Output Valid  
3.8 ns  
Clock to Output Invalid  
Pipeline  
tKQX  
1.5  
1.5  
0.9  
0.1  
4.0  
1.5  
1.5  
0.9  
0.1  
4.2  
1.5  
1.5  
1.0  
0.1  
4.5  
1.5  
1.5  
1.2  
0.2  
5.5  
1.5  
1.5  
1.4  
0.4  
6.5  
1.5  
1.5  
1.5  
0.5  
7.5  
ns  
ns  
ns  
ns  
ns  
1
Clock to Output in Low-Z  
tLZ  
Setup time  
Hold time  
tS  
tH  
Clock Cycle Time  
Clock to Output Valid  
tKC  
tKQ  
tKQX  
7.5 ns  
Clock to Output Invalid  
2.0  
2.0  
1.2  
0.2  
0.9  
1.1  
2.0  
2.0  
1.2  
0.2  
0.9  
1.1  
2.0  
2.0  
1.3  
0.3  
1.0  
1.2  
2.0  
2.0  
1.5  
0.5  
1.3  
1.5  
2.0  
2.0  
1.5  
0.5  
1.3  
1.5  
2.0  
2.0  
1.5  
0.5  
1.5  
1.7  
ns  
ns  
ns  
ns  
ns  
ns  
Flow  
Through  
1
Clock to Output in Low-Z  
tLZ  
Setup time  
Hold time  
tS  
tH  
Clock HIGH Time  
Clock LOW Time  
tKH  
tKL  
Clock to Output in  
High-Z  
1
1.5 2.5 1.5 2.5 1.5 2.5 1.5 2.5 1.5 3.0 1.5 3.8 ns  
tHZ  
G to Output Valid  
G to output in Low-Z  
G to output in High-Z  
ZZ setup time  
tOE  
0
2.5  
2.5  
0
2.5  
2.5  
0
2.5  
2.5  
0
2.5  
2.5  
0
3.0  
3.0  
0
3.8 ns  
ns  
3.8 ns  
1
tOLZ  
1
5
5
5
5
5
5
tOHZ  
2
ns  
ns  
ns  
tZZS  
2
ZZ hold time  
1
1
1
1
1
1
tZZH  
ZZ recovery  
tZZR  
20  
20  
20  
20  
20  
20  
Notes:  
1. These parameters are sampled and are not 100% tested.  
2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold  
times as specified above.  
Rev: 1.03b 9/2013  
23/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Pipeline Mode Timing (NBT)  
Write A  
Read B  
Suspend  
tKH  
Read C  
tKC  
Write D  
Write No-op Read E  
Deselect  
tKL  
CK  
A
tH  
tH  
tH  
tH  
tH  
tH  
tS  
A
B
C
D
E
tS  
tS  
tS  
tS  
tS  
CKE  
E*  
ADV  
W
tH  
tS  
Bn  
tH  
tLZ  
tHZ  
tS  
tKQ  
tKQX  
D(A)  
Q(B)  
Q(C)  
D(D)  
Q(E)  
DQ  
Rev: 1.03b 9/2013  
24/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Flow Through Mode Timing (NBT)  
Write A  
Read B  
tKH  
Suspend  
tKC  
Read C  
Write D1  
Suspend1  
Write  
Read E  
Deselect  
tKL  
CK  
CKE  
E
tH  
tS  
tS  
tS  
tH  
tH  
ADV  
W
tH  
tS  
tS  
tH  
Bn  
tH  
tS  
A
B
C
D
E
A0–An  
DQ  
tH  
tHZ  
tKQX  
tHZ  
tS  
tKQ  
tLZ  
tKQX  
D(A)  
Q(B)  
Q(C)  
D(D)  
Q(E)  
Rev: 1.03b 9/2013  
25/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
JTAG Port Operation  
Overview  
The JTAG Port on this RAM operates in a manner that is compliant with IEEE Standard 1149.1-1990, a serial boundary scan  
interface standard (commonly referred to as JTAG). The JTAG Port input interface levels scale with V . The JTAG output  
DD  
drivers are powered by V  
.
DDQ  
Disabling the JTAG Port  
It is possible to use this device without utilizing the JTAG port. The port is reset at power-up and will remain inactive unless  
clocked. TCK, TDI, and TMS are designed with internal pull-up circuits.To assure normal operation of the RAM with the JTAG  
Port unused, TCK, TDI, and TMS may be left floating or tied to either V or V . TDO should be left unconnected.  
DD  
SS  
JTAG Pin Descriptions  
Pin  
Pin Name  
I/O  
Description  
Clocks all TAP events. All inputs are captured on the rising edge of TCK and all outputs propagate  
from the falling edge of TCK.  
TCK  
Test Clock  
In  
The TMS input is sampled on the rising edge of TCK. This is the command input for the TAP  
TMS  
TDI  
Test Mode Select  
Test Data In  
In controller state machine. An undriven TMS input will produce the same result as a logic one input  
level.  
The TDI input is sampled on the rising edge of TCK. This is the input side of the serial registers  
placed between TDI and TDO. The register placed between TDI and TDO is determined by the  
In state of the TAP Controller state machine and the instruction that is currently loaded in the TAP  
Instruction Register (refer to the TAP Controller State Diagram). An undriven TDI pin will produce  
the same result as a logic one input level.  
Output that is active depending on the state of the TAP state machine. Output changes in  
Out response to the falling edge of TCK. This is the output side of the serial registers placed between  
TDI and TDO.  
TDO  
Test Data Out  
Note:  
This device does not have a TRST (TAP Reset) pin. TRST is optional in IEEE 1149.1. The Test-Logic-Reset state is entered while TMS is  
held high for five rising edges of TCK. The TAP Controller is also reset automaticly at power-up.  
JTAG Port Registers  
Overview  
The various JTAG registers, refered to as Test Access Port orTAP Registers, are selected (one at a time) via the sequences of 1s  
and 0s applied to TMS as TCK is strobed. Each of the TAP Registers is a serial shift register that captures serial input data on the  
rising edge of TCK and pushes serial data out on the next falling edge of TCK. When a register is selected, it is placed between the  
TDI and TDO pins.  
Instruction Register  
The Instruction Register holds the instructions that are executed by the TAP controller when it is moved into the Run, Test/Idle, or  
the various data register states. Instructions are 3 bits long. The Instruction Register can be loaded when it is placed between the  
TDI and TDO pins. The Instruction Register is automatically preloaded with the IDCODE instruction at power-up or whenever the  
controller is placed in Test-Logic-Reset state.  
Bypass Register  
The Bypass Register is a single bit register that can be placed between TDI and TDO. It allows serial test data to be passed through  
the RAM’s JTAG Port to another device in the scan chain with as little delay as possible.  
Rev: 1.03b 9/2013  
26/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Boundary Scan Register  
The Boundary Scan Register is a collection of flip flops that can be preset by the logic level found on the RAM’s input or I/O pins.  
The flip flops are then daisy chained together so the levels found can be shifted serially out of the JTAG Port’s TDO pin. The  
Boundary Scan Register also includes a number of place holder flip flops (always set to a logic 1). The relationship between the  
device pins and the bits in the Boundary Scan Register is described in the Scan Order Table following. The Boundary Scan  
Register, under the control of the TAP Controller, is loaded with the contents of the RAMs I/O ring when the controller is in  
Capture-DR state and then is placed between the TDI and TDO pins when the controller is moved to Shift-DR state. SAMPLE-Z,  
SAMPLE/PRELOAD and EXTEST instructions can be used to activate the Boundary Scan Register.  
JTAG TAP Block Diagram  
·
·
·
·
·
·
·
·
Boundary Scan Register  
·
·
·
0
Bypass Register  
2
1 0  
Instruction Register  
TDI  
TDO  
ID Code Register  
31 30 29  
2 1  
0
·
· · ·  
Control Signals  
Test Access Port (TAP) Controller  
TMS  
TCK  
* For the value of M, see the BSDL file, which is available at by contacting us at apps@gsitechnology.com.  
Identification (ID) Register  
The ID Register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in  
Capture-DR state with the IDCODE command loaded in the Instruction Register. The code is loaded from a 32-bit on-chip ROM.  
It describes various attributes of the RAM as indicated below. The register is then placed between the TDI and TDO pins when the  
controller is moved into Shift-DR state. Bit 0 in the register is the LSB and the first to reach TDO when shifting begins.  
Rev: 1.03b 9/2013  
27/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
ID Register Contents  
GSI Technology  
JEDEC Vendor  
ID Code  
Not Used  
Bit # 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1  
0 1 1 0 1 1 0 0 1  
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
Tap Controller Instruction Set  
Overview  
There are two classes of instructions defined in the Standard 1149.1-1990; the standard (Public) instructions, and device specific  
(Private) instructions. Some Public instructions are mandatory for 1149.1 compliance. Optional Public instructions must be  
implemented in prescribed ways. The TAP on this device may be used to monitor all input and I/O pads, and can be used to load  
address, data or control signals into the RAM or to preload the I/O buffers.  
When the TAP controller is placed in Capture-IR state the two least significant bits of the instruction register are loaded with 01.  
When the controller is moved to the Shift-IR state the Instruction Register is placed between TDI and TDO. In this state the desired  
instruction is serially loaded through the TDI input (while the previous contents are shifted out at TDO). For all instructions, the  
TAP executes newly loaded instructions only when the controller is moved to Update-IR state. The TAP instruction set for this  
device is listed in the following table.  
Rev: 1.03b 9/2013  
28/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
JTAG Tap Controller State Diagram  
Test Logic Reset  
1
0
1
1
1
Run Test Idle  
Select DR  
Select IR  
0
0
0
1
1
1
1
Capture DR  
Capture IR  
0
0
Shift DR  
Shift IR  
0
0
1
1
Exit1 DR  
Exit1 IR  
0
0
Pause DR  
Pause IR  
0
0
0
0
1
1
Exit2 DR  
Exit2 IR  
1
1
Update DR  
Update IR  
1
0
1
0
Instruction Descriptions  
BYPASS  
When the BYPASS instruction is loaded in the Instruction Register the Bypass Register is placed between TDI and TDO. This  
occurs when the TAP controller is moved to the Shift-DR state. This allows the board level scan path to be shortened to facili-  
tate testing of other devices in the scan path.  
SAMPLE/PRELOAD  
SAMPLE/PRELOAD is a Standard 1149.1 mandatory public instruction. When the SAMPLE / PRELOAD instruction is  
loaded in the Instruction Register, moving the TAP controller into the Capture-DR state loads the data in the RAMs input and  
I/O buffers into the Boundary Scan Register. Boundary Scan Register locations are not associated with an input or I/O pin, and  
are loaded with the default state identified in the Boundary Scan Chain table at the end of this section of the datasheet. Because  
the RAM clock is independent from the TAP Clock (TCK) it is possible for the TAP to attempt to capture the I/O ring contents  
while the input buffers are in transition (i.e. in a metastable state). Although allowing the TAP to sample metastable inputs will  
not harm the device, repeatable results cannot be expected. RAM input signals must be stabilized for long enough to meet the  
TAPs input data capture set-up plus hold time (tTS plus tTH). The RAMs clock inputs need not be paused for any other TAP  
operation except capturing the I/O ring contents into the Boundary Scan Register. Moving the controller to Shift-DR state then  
places the boundary scan register between the TDI and TDO pins.  
EXTEST  
EXTEST is an IEEE 1149.1 mandatory public instruction. It is to be executed whenever the instruction register is loaded with  
all logic 0s. The EXTEST command does not block or override the RAM’s input pins; therefore, the RAM’s internal state is  
still determined by its input pins.  
Rev: 1.03b 9/2013  
29/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Typically, the Boundary Scan Register is loaded with the desired pattern of data with the SAMPLE/PRELOAD command.  
Then the EXTEST command is used to output the Boundary Scan Register’s contents, in parallel, on the RAM’s data output  
drivers on the falling edge of TCK when the controller is in the Update-IR state.  
Alternately, the Boundary Scan Register may be loaded in parallel using the EXTEST command. When the EXTEST instruc-  
tion is selected, the sate of all the RAM’s input and I/O pins, as well as the default values at Scan Register locations not asso-  
ciated with a pin, are transferred in parallel into the Boundary Scan Register on the rising edge of TCK in the Capture-DR  
state, the RAM’s output pins drive out the value of the Boundary Scan Register location with which each output pin is associ-  
ated.  
IDCODE  
The IDCODE instruction causes the ID ROM to be loaded into the ID register when the controller is in Capture-DR mode and  
places the ID register between the TDI and TDO pins in Shift-DR mode. The IDCODE instruction is the default instruction  
loaded in at power up and any time the controller is placed in the Test-Logic-Reset state.  
SAMPLE-Z  
If the SAMPLE-Z instruction is loaded in the instruction register, all RAM outputs are forced to an inactive drive state (high-  
Z) and the Boundary Scan Register is connected between TDI and TDO when the TAP controller is moved to the Shift-DR  
state.  
RFU  
These instructions are Reserved for Future Use. In this device they replicate the BYPASS instruction.  
JTAG TAP Instruction Set Summary  
Instruction  
EXTEST  
Code  
000  
Description  
Notes  
1
Places the Boundary Scan Register between TDI and TDO.  
Preloads ID Register and places it between TDI and TDO.  
IDCODE  
001  
1, 2  
Captures I/O ring contents. Places the Boundary Scan Register between TDI and  
SAMPLE-Z  
RFU  
010  
011  
TDO.  
1
1
Forces all RAM output drivers to High-Z.  
Do not use this instruction; Reserved for Future Use.  
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.  
SAMPLE/  
PRELOAD  
Captures I/O ring contents. Places the Boundary Scan Register between TDI and  
TDO.  
100  
101  
110  
111  
1
1
1
1
GSI  
RFU  
GSI private instruction.  
Do not use this instruction; Reserved for Future Use.  
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.  
BYPASS  
Places Bypass Register between TDI and TDO.  
Notes:  
1. Instruction codes expressed in binary, MSB on left, LSB on right.  
2. Default instruction automatically loaded at power-up and in test-logic-reset state.  
Rev: 1.03b 9/2013  
30/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
JTAG Port Recommended Operating Conditions and DC Characteristics (2.5/3.3 V Version)  
Parameter  
Symbol  
Min.  
Max.  
Unit Notes  
V
0.6 * V  
V
+0.3  
DD2  
2.5 V Test Port Input High Voltage  
2.5 V Test Port Input Low Voltage  
3.3 V Test Port Input High Voltage  
3.3 V Test Port Input Low Voltage  
TMS, TCK and TDI Input Leakage Current  
TMS, TCK and TDI Input Leakage Current  
TDO Output Leakage Current  
V
V
1
1
IHJ2  
DD2  
V
–0.3  
0.3 * V  
DD2  
ILJ2  
V
V
+0.3  
DD3  
2.0  
0.3  
300  
1  
V
1
IHJ3  
V
0.8  
V
1
ILJ3  
I
1
100  
1
uA  
uA  
uA  
V
2
INHJ  
I
3
INLJ  
I
1  
4
OLJ  
V
Test Port Output High Voltage  
1.7  
0.4  
5, 6  
5, 7  
5, 8  
5, 9  
OHJ  
V
Test Port Output Low Voltage  
V
OLJ  
V
V
– 100 mV  
DDQ  
Test Port Output CMOS High  
V
OHJC  
V
Test Port Output CMOS Low  
100 mV  
V
OLJC  
Notes:  
1. Input Under/overshoot voltage must be 2 V < Vi < V  
+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tTKC.  
DDn  
2.  
V
V V  
ILJ  
IN  
DDn  
3. 0 V V V  
IN  
ILJn  
4. Output Disable, V  
= 0 to V  
DDn  
OUT  
5. The TDO output driver is served by the V  
supply.  
DDQ  
6.  
7.  
8.  
9.  
I
I
I
I
= 4 mA  
OHJ  
= + 4 mA  
OLJ  
= –100 uA  
= +100 uA  
OHJC  
OLJC  
JTAG Port AC Test Conditions  
Parameter  
Conditions  
JTAG Port AC Test Load  
DQ  
V
– 0.2 V  
Input high level  
Input low level  
DD  
0.2 V  
1 V/ns  
*
50  
30pF  
Input slew rate  
V
/2  
DDQ  
V
V
/2  
Input reference level  
DDQ  
* Distributed Test Jig Capacitance  
/2  
Output reference level  
DDQ  
Notes:  
1. Include scope and jig capacitance.  
2. Test conditions as shown unless otherwise noted.  
Rev: 1.03b 9/2013  
31/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
JTAG Port Timing Diagram  
tTKC  
tTKH  
tTKL  
TCK  
tTH  
tTH  
tTS  
tTS  
TDI  
TMS  
TDO  
tTKQ  
tTH  
tTS  
Parallel SRAM input  
JTAG Port AC Electrical Characteristics  
Parameter  
Symbol  
tTKC  
tTKQ  
tTKH  
tTKL  
tTS  
Min  
Max  
Unit  
TCK Cycle Time  
50  
ns  
ns  
ns  
ns  
ns  
ns  
TCK Low to TDO Valid  
TCK High Pulse Width  
TCK Low Pulse Width  
TDI & TMS Set Up Time  
TDI & TMS Hold Time  
20  
20  
20  
10  
10  
tTH  
Boundary Scan (BSDL Files)  
For information regarding the Boundary Scan Chain, or to obtain BSDL files for this part, please contact our Applications  
Engineering Department at: apps@gsitechnology.com.  
Rev: 1.03b 9/2013  
32/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
TQFP Package Drawing (Package GT)  
L
c
L1  
Symbol  
Description  
Standoff  
Min. Nom. Max  
A1  
A2  
b
0.05  
1.35  
0.20  
0.09  
0.10  
1.40  
0.30  
0.15  
1.45  
0.40  
0.20  
22.1  
20.1  
16.1  
14.1  
Body Thickness  
Lead Width  
c
Lead Thickness  
D
Terminal Dimension 21.9  
Package Body 19.9  
Terminal Dimension 15.9  
22.0  
20.0  
16.0  
14.0  
0.65  
0.60  
1.00  
e
D1  
E
b
E1  
e
Package Body  
Lead Pitch  
13.9  
L
Foot Length  
Lead Length  
Coplanarity  
Lead Angle  
0.45  
0.75  
L1  
Y
A1  
A2  
E1  
E
0.10  
7  
0  
Notes:  
1. All dimensions are in millimeters (mm).  
2. Package width and length do not include mold protrusion.  
Rev: 1.03b 9/2013  
33/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Package Dimensions—165-Bump FPBGA (Package D)  
A1 CORNER  
TOP VIEW  
BOTTOM VIEW  
A1 CORNER  
M
M
Ø0.10  
C
Ø0.25 C A B  
Ø0.40~0.60 (165x)  
1
2 3 4 5 6 7 8 9 10 11  
11 10 9 8  
7 6 5 4 3 2 1  
A
B
C
D
E
F
A
B
C
D
E
F
G
H
J
G
H
J
K
L
K
L
M
N
P
R
M
N
P
R
A
1.0  
10.0  
1.0  
13±0.05  
B
0.20(4x)  
SEATING PLANE  
C
Rev: 1.03b 9/2013  
34/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Ordering Information—GSI NBT Synchronous SRAM  
3
Speed  
4
1
2
Org  
Voltage  
Package  
T
Part Number  
Type  
J
(MHz/ns)  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
1M x 18  
1M x 18  
GS8161Z18DGT-400  
GS8161Z18DGT-375  
GS8161Z18DGT-333  
GS8161Z18DGT-250  
GS8161Z18DGT-200  
GS8161Z18DGT-150  
GS8161Z36DGT-400  
GS8161Z36DGT-375  
GS8161Z36DGT-333  
GS8161Z36DGT-250  
GS8161Z36DGT-200  
GS8161Z36DGT-150  
GS8161Z18DGT-400I  
GS8161Z18DGT-375I  
GS8161Z18DGT-333I  
GS8161Z18DGT-250I  
GS8161Z18DGT-200I  
GS8161Z18DGT-150I  
GS8161Z36DGT-400I  
GS8161Z36DGT-375I  
GS8161Z36DGT-333I  
GS8161Z36DGT-250I  
GS8161Z36DGT-200I  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
RoHS-compliant TQFP  
C
C
C
C
C
C
C
C
C
C
C
C
I
1M x 18  
1M x 18  
1M x 18  
1M x 18  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
1M x 18  
1M x 18  
I
1M x 18  
I
1M x 18  
I
1M x 18  
I
1M x 18  
I
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
I
I
I
I
I
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number.  
Example: GS8161Z36DGD-200IT.  
2. All GSI parts are user-configurable for pipeline or flow through operation unless otherwise stated.  
3. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user .  
4. C = Commercial Temperature Range. I = Industrial Temperature Range.  
5. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are  
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings  
Rev: 1.03b 9/2013  
35/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Ordering Information—GSI NBT Synchronous SRAM  
3
Speed  
4
1
2
Org  
Voltage  
Package  
T
Part Number  
Type  
J
(MHz/ns)  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
512K x 36  
1M x 18  
GS8161Z36DGT-150I  
GS8161Z18DD-400  
GS8161Z18DD-375  
GS8161Z18DD-333  
GS8161Z18DD-250  
GS8161Z18DD-200  
GS8161Z18DD-150  
GS8161Z32DD-400  
GS8161Z32DD-375  
GS8161Z32DD-333  
GS8161Z32DD-250  
GS8161Z32DD-200  
GS8161Z32DD-150  
GS8161Z36DD-400  
GS8161Z36DD-375  
GS8161Z36DD-333  
GS8161Z36DD-250  
GS8161Z36DD-200  
GS8161Z36DD-150  
GS8161Z18DD-400I  
GS8161Z18DD-375I  
GS8161Z18DD-333I  
GS8161Z18DD-250I  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
RoHS-compliant TQFP  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
I
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
I
1M x 18  
1M x 18  
1M x 18  
1M x 18  
1M x 18  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
1M x 18  
1M x 18  
I
1M x 18  
I
1M x 18  
I
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number.  
Example: GS8161Z36DGD-200IT.  
2. All GSI parts are user-configurable for pipeline or flow through operation unless otherwise stated.  
3. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user .  
4. C = Commercial Temperature Range. I = Industrial Temperature Range.  
5. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are  
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings  
Rev: 1.03b 9/2013  
36/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Ordering Information—GSI NBT Synchronous SRAM  
3
Speed  
4
1
2
Org  
Voltage  
Package  
T
Part Number  
Type  
J
(MHz/ns)  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
1M x 18  
1M x 18  
GS8161Z18DD-200I  
GS8161Z18DD-150I  
GS8161Z32DD-400I  
GS8161Z32DD-375I  
GS8161Z32DD-333I  
GS8161Z32DD-250I  
GS8161Z32DD-200I  
GS8161Z32DD-150I  
GS8161Z36DD-400I  
GS8161Z36DD-375I  
GS8161Z36DD-333I  
GS8161Z36DD-250I  
GS8161Z36DD-200I  
GS8161Z36DD-150I  
GS8161Z18DGD-400  
GS8161Z18DGD-375  
GS8161Z18DGD-333  
GS8161Z18DGD-250  
GS8161Z18DGD-200  
GS8161Z18DGD-150  
GS8161Z32DGD-400  
GS8161Z32DGD-375  
GS8161Z32DGD-333  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
165 BGA  
165 BGA  
I
I
I
I
I
I
I
I
I
I
I
I
I
I
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
1M x 18  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
C
C
C
C
C
C
C
C
C
1M x 18  
1M x 18  
1M x 18  
1M x 18  
1M x 18  
512K x 32  
512K x 32  
512K x 32  
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number.  
Example: GS8161Z36DGD-200IT.  
2. All GSI parts are user-configurable for pipeline or flow through operation unless otherwise stated.  
3. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user .  
4. C = Commercial Temperature Range. I = Industrial Temperature Range.  
5. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are  
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings  
Rev: 1.03b 9/2013  
37/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Ordering Information—GSI NBT Synchronous SRAM  
3
Speed  
4
1
2
Org  
Voltage  
Package  
T
Part Number  
Type  
J
(MHz/ns)  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
400/4.0  
375/4.2  
512K x 32  
512K x 32  
512K x 32  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
1M x 18  
GS8161Z32DGD-250  
GS8161Z32DGD-200  
GS8161Z32DGD-150  
GS8161Z36DGD-400  
GS8161Z36DGD-375  
GS8161Z36DGD-333  
GS8161Z36DGD-250  
GS8161Z36DGD-200  
GS8161Z36DGD-150  
GS8161Z18DGD-400I  
GS8161Z18DGD-375I  
GS8161Z18DGD-333I  
GS8161Z18DGD-250I  
GS8161Z18DGD-200I  
GS8161Z18DGD-150I  
GS8161Z32DGD-400I  
GS8161Z32DGD-375I  
GS8161Z32DGD-333I  
GS8161Z32DGD-250I  
GS8161Z32DGD-200I  
GS8161Z32DGD-150I  
GS8161Z36DGD-400I  
GS8161Z36DGD-375I  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
NBT  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
C
C
C
C
C
C
C
C
C
I
1M x 18  
I
1M x 18  
I
1M x 18  
I
1M x 18  
I
1M x 18  
I
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 32  
512K x 36  
512K x 36  
I
I
I
I
I
I
I
I
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number.  
Example: GS8161Z36DGD-200IT.  
2. All GSI parts are user-configurable for pipeline or flow through operation unless otherwise stated.  
3. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user .  
4. C = Commercial Temperature Range. I = Industrial Temperature Range.  
5. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are  
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings  
Rev: 1.03b 9/2013  
38/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
Ordering Information—GSI NBT Synchronous SRAM  
3
Speed  
4
1
2
Org  
Voltage  
Package  
T
Part Number  
Type  
J
(MHz/ns)  
333/4.5  
250/5.5  
200/6.5  
150/7.5  
512K x 36  
512K x 36  
512K x 36  
512K x 36  
GS8161Z36DGD-333I  
GS8161Z36DGD-250I  
GS8161Z36DGD-200I  
GS8161Z36DGD-150I  
NBT  
NBT  
NBT  
NBT  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
2.5 V/3.3 V  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
RoHS-compliant 165 BGA  
I
I
I
I
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number.  
Example: GS8161Z36DGD-200IT.  
2. All GSI parts are user-configurable for pipeline or flow through operation unless otherwise stated.  
3. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user .  
4. C = Commercial Temperature Range. I = Industrial Temperature Range.  
5. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are  
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings  
Rev: 1.03b 9/2013  
39/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS8161Z18D(GT/D)/GS8161Z32D(D)/GS8161Z36D(GT/D)  
18Mb Sync SRAM Datasheet Revision History  
Types of Changes  
Format or Content  
File Name  
Description of changes  
• Creation of new datasheet  
8161ZxxD_r1  
• Addition of IDD numbers  
8161ZxxD_r1_01  
Content  
Content  
• Updated Absolute Maximum Ratings  
• Updated Ordering Information  
8161ZxxD_r1_02  
8161ZxxD_r1_03  
• Updated to reflect MP status  
• (Rev1.03a: Corrected 165 thermal numbers)  
• (Rev1.03b: Corrected TQFP thermal numbers)  
Content  
Rev: 1.03b 9/2013  
40/40  
© 2011, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  

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