MSM54V32126A-50TS-K [OKI]
131,072-Word X 32-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO; 131,072字×32位动态RAM ：快速页模式输入与EDO
| 型号： | MSM54V32126A-50TS-K |
| 厂家： | 
OKI ELECTRONIC COMPONETS |
| 描述： | 131,072-Word X 32-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO |
| 文件： | 总26页 (文件大小：381K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
E2L0053-17-Y1
Preliminary
This version: Jan. 1998
¡ Semiconductor
MSM54V32126A
131,072-Word ¥ 32-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO
DESCRIPTION
The MSM54V32126A is a Graphics DRAM organized in a 131,072-word ¥ 32-bit configuration. The
technology used to fabricate the MSM54V32126A is OKI's CMOS silicon gate process technology.
The device operates with a single 3.3 V power supply.
FEATURES
• 131,072-word ¥ 32-bit organization
• Single 3.3 V power supply, ±0.3 V tolerance
• Refresh: 512 cycles/8 ms
• Fast Page Mode with Extended Data Out (EDO)
• Byte write, Byte read
• RAS only refresh
• CAS before RAS refresh
• CAS before RAS self-refresh
• Hidden refresh
• Package options:
64-pin 525 mil plastic SSOP
(SSOP64-P-525-0.80-K)
(Product : MSM54V32126A-xxGS-K)
70/64-pin400milplasticTSOP(TypeII)(TSOPII70/64-P-400-0.65-K)(Product:MSM54V32126A-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Access Time (Max.)
tRAC tAA tCAC tOEA
45 ns 23 ns 13 ns 13 ns
50 ns 25 ns 15 ns 15 ns
60 ns 30 ns 18 ns 18 ns
Power Dissipation
Operating (Max.) Standby (Max.)
540 mW
Cycle Time
(Min.)
Family
MSM54V32126A-45
MSM54V32126A-50
MSM54V32126A-60
90 ns
100 ns
120 ns
504 mW
486 mW
3.1 mW
1/26
¡ Semiconductor
MSM54V32126A
PIN CONFIGURATION (TOP VIEW)
VCC
DQ0
DQ1
DQ2
DQ3
VCC
DQ4
DQ5
DQ6
1
2
3
4
5
6
7
8
9
70 VSS
69 DQ31
68 DQ30
67 DQ29
66 DQ28
65 VCC
64 DQ27
63 DQ26
62 DQ25
61 DQ24
60 VSS
59 DQ23
58 DQ22
57 DQ21
56 DQ20
55 VCC
VCC
DQ0
DQ1
DQ2
DQ3
VCC
DQ4
DQ5
DQ6
DQ7 10
VSS 11
DQ8 12
DQ9 13
DQ10 14
DQ11 15
VCC 16
DQ12 17
DQ13 18
DQ14 19
DQ15 20
VSS 21
NC 22
NC 23
NC 24
WE 25
RAS 26
NC 27
A0 28
A1 29
A2 30
A3 31
1
2
3
4
5
6
7
8
9
64 VSS
63 DQ31
62 DQ30
61 DQ29
60 DQ28
59 VCC
58 DQ27
57 DQ26
56 DQ25
55 DQ24
54 VSS
53 DQ23
52 DQ22
51 DQ21
50 DQ20
49 VCC
48 DQ19
47 DQ18
46 DQ17
45 DQ16
44 VSS
43 CAS1
42 CAS2
41 CAS3
40 CAS4
39 OE
38 A8
37 A7
36 A6
35 A5
DQ7 10
VSS 11
DQ8 12
DQ9 13
DQ10 14
DQ11 15
VCC 16
DQ12 20
51 DQ19
DQ13 21
DQ14 22
DQ15 23
VSS 24
NC 25
NC 26
NC 27
WE 28
RAS 29
NC 30
A0 31
50 DQ18
49 DQ17
48 DQ16
47 VSS
46 CAS1
45 CAS2
44 CAS3
43 CAS4
42 OE
41 A8
40 A7
39 A6
38 A5
A1 32
A2 33
A3 34
34 A4
33 VSS
VCC 32
37 A4
VCC 35
36 VSS
64-Pin Plastic SSOP
70/64-Pin Plastic TSOP (II)
(K Type)
Pin Name
Function
A0 - A8
DQ0 - DQ31
RAS
Address Input
Data Input / Data Output
Row Address Strobe
Column Address Strobe
Write Enable
CAS1 - CAS4
WE
OE
Output Enable
VCC
VSS
NC
Power Supply (3.3 V)
Ground (0 V)
No Connection
Note:
The same power supply voltage must be provided to every V pin, and the same GND
CC
voltage level must be provided to every V pin.
SS
2/26
WE
OE
Timing
RAS
Generator
Output
Buffers
I/O
Controller
8
8
8
8
8
8
8
8
CAS1
DQ0 - DQ7
I/O
Controller
Input
Buffers
CAS2
CAS3
CAS4
I/O
Controller
Output
Buffers
I/O
Controller
DQ8 - DQ15
Column
Input
Buffers
8
9
8
Column Decoders
Sense Amps
Address
Buffers
I/O
Selector
Internal
Address
Counter
32
32
Refresh
Control Clock
A0 - A8
Input
Buffers
8
8
8
8
8
8
8
8
Row
Row
Deco-
ders
9
Address
Buffers
Word
Drivers
Memory
Cells
DQ16 - DQ23
Output
Buffers
VCC
Input
Buffers
On-chip
VBB Generator
DQ24 - DQ31
Output
Buffers
VSS
¡ Semiconductor
MSM54V32126A
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter
Voltage on Any Pin Relative to VSS
Short Circuit Output Current
Power Dissipation
Symbol
VT
Rating
–0.5 to 4.5
50
Unit
V
IOS
mA
W
PD
1
Operating Temperature
Storage Temperature
Topr
Tstg
0 to 70
–55 to 150
°C
°C
Recommended Operating Conditions
(Ta = 0°C to 70°C)
Parameter
Symbol
VCC
Min.
3.0
0
Typ.
3.3
0
Max.
Unit
3.6
0
V
V
V
V
Power Supply Voltage
VSS
Input High Voltage
Input Low Voltage
VIH
3.0
–0.3
—
3.6
0.3
VIL
—
Capacitance
(VCC = 3.3 V 0.3 Vꢀ Ta = 25°Cꢀ f = 1 MHꢁ)
Parameter
Input Capacitance
Symbol
CIN
Typ.
Max.
Unit
pF
—
—
7
7
Input / Output Capacitance
CIO
pF
4/26
¡ Semiconductor
DC Characteristics
Parameter
MSM54V32126A
(VCC = 3.3 V 0.3 Vꢀ Ta = 0°C to 70°C)
MSM54V32126A MSM54V32126A MSM54V32126A
Symbol
Condition
Unit Note
-45
-50
-60
Min. Max. Min. Max. Min. Max.
Output High Voltage
Output Low Voltage
VOH
VOL
I
I
OH = –0.1 mA
OL = 0.1 mA
2.0
0
VCC
0.8
2.0
0
VCC
0.8
2.0
0
VCC
0.8
V
V
0 V < VIN < VCC;
All other pins not
under test = 0 V
Input Leakage Current
Output Leakage Current
ILI
–10
–10
—
10
10
–10
–10
—
10
10
–10
–10
—
10
10
mA
mA
0 V < VOUT < 3.6 V
Output Disable
ILO
Average Power
Supply Current
(Operating)
RASꢀ CAS cyclingꢀ
tRC = Min.
ICC1
ICC2
ICC3
140
130
110 mA 1ꢀ 2ꢀ 3
Power Supply
Current (Standby)
RAS ≥ VCC – 0.2 Vꢀ
CAS ≥ VCC – 0.2 V
mA
—
—
850
140
—
—
850
130
—
—
850
Average Power
Supply Current
(RAS Only Refresh)
RAS = cyclingꢀ
CAS = VIHꢀ
tRC = Min.
110 mA
1ꢀ 2ꢀ 3
Average Power
Supply Current
(Fast Page Mode)
RAS = VILꢀ
CAS cyclingꢀ
tHPC = Min.
ICC4
—
—
150
140
—
—
140
130
—
—
135 mA 1ꢀ 2ꢀ 4
110 mA 1ꢀ 2ꢀ 4
Average Power
Supply Current
(CAS before RAS Refresh)
RAS = cyclingꢀ
CAS before RAS
ICC5
Average Power
Supply Current
(CAS before RAS
Self-Refresh)
RAS = VILꢀ
CAS = VIL
ICCS
—
950
—
950
—
950 mA 1ꢀ 2
Notes: 1. Specified values are obtained with minimum cycle time.
2. I is dependent on output loading. Specified values are obtained with the output
CC
open.
3. Address can be changed once or less while RAS = V .
IL
4. Address can be changed once or less while CAS = V
.
IH
5/26
¡ Semiconductor
MSM54V32126A
AC Characteristics (1/2)
(VCC = 3.3 V 0.3 Vꢀ Ta = 0°C to 70°C) Note 1ꢀ 2ꢀ 3
MSM54V32126A MSM54V32126A MSM54V32126A
-45
-50
-60
Parameter
Symbol
Unit Note
Min. Max. Min. Max. Min. Max.
Random Read or Write Cycle Time
Read Modify Write Cycle
tRC
tRWC
tHPC
90
135
18
65
—
—
—
—
3
—
—
—
—
45
23
13
28
20
20
35
—
10k
100k
—
—
10k
32
22
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
100
145
20
70
—
—
—
—
3
—
—
—
—
50
25
15
30
20
20
35
—
10k
100k
—
—
10k
35
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
120
170
24
80
—
—
—
—
3
—
—
—
—
60
30
18
35
20
20
35
—
10k
ns
ns
Fast Page Mode Cycle Time
ns
Fast Page Mode Read-Modify-Write Cycle Time tPRWC
ns
Access Time from RAS
tRAC
tAA
tCAC
tCPA
ns 4ꢀ 9ꢀ10
ns 4ꢀ 10
ns 4ꢀ 9
ns 4ꢀ 13
Access Time from Column Address
Access Time from CAS
Access Time from CAS Precharge
Output Buffer Turn-off Delay Time from RAS tREZ
Output Buffer Turn-off Delay Time from CAS tCEZ
ns
ns
ns
ns
ns
5
5
3
3
3
3
Transition Time (Rise and Fall)
RAS Precharge Time
RAS Pulse Width
tT
3
3
3
tRP
39
45
45
12
45
6
44
50
50
14
50
7
54
60
60
14
60
9
tRAS
RAS Pulse Width (Hyper Page Mode Only) tRASP
100k ns
RAS Hold Time
tRSH
tCSH
tCAS
tRCD
tRAD
tRAL
tCRP
tCP
—
—
10k
42
30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CAS Hold Time
CAS Pulse Width
RAS to CAS Delay Time
20
15
22
6
20
15
24
6
20
15
28
8
9
RAS to Column Address Delay Time
Column Address to RAS Lead Time
CAS to RAS Precharge Time
CAS Precharge Time (Hyper Page Mode)
Row Address Set-up Time
Row Address Hold Time
10
13
15
6
7
9
tASR
tRAH
tASC
tCAH
tAR
0
0
0
6
7
9
Column Address Set-up Time
Column Address Hold Time
Column Address Hold Time referenced to RAS
Read Command Set-up Time
Read Command Hold Time
0
0
0
12
12
7
8
10
40
0
30
0
35
0
tRCS
tRCH
12
0
0
0
ns 6ꢀ 12
Read Command Hold Time referenced to RAS tRRH
0
0
0
ns
ns
ns
ns
6
CAS "H" to RAS "H" Lead Time
RAS "H" to CAS "H" Lead Time
Data Output Hold after CAS Low
Write Command Set-up Time
Write Command Hold Time
tCRL
tRCL
tDOH
tWCS
tWCH
0
0
0
0
0
0
3
3
3
11
0
0
0
ns 8ꢀ 12
7
8
10
ns
12
6/26
¡ Semiconductor
MSM54V32126A
AC Characteristics (2/2)
(VCC = 3.3 V 0.3 Vꢀ Ta = 0°C to 70°C) Note 1ꢀ 2ꢀ 3
MSM54V32126A MSM54V32126A MSM54V32126A
-45
-50
-60
Parameter
Symbol
Unit Note
Min. Max. Min. Max. Min. Max.
Write Command Hold Time referenced to RAS tWCR
30
8
—
—
—
—
20
—
—
—
—
—
—
—
—
—
13
20
—
—
—
—
—
—
—
—
—
—
8
35
9
—
—
—
—
20
—
—
—
—
—
—
—
—
—
15
20
—
—
—
—
—
—
—
—
—
—
8
40
10
10
10
3
—
—
—
—
20
—
—
—
—
—
—
—
—
—
18
20
—
—
—
—
—
—
—
—
—
—
8
ns
ns
ns
Write Command Pulse Width
tWP
tRWL
tCWL
Write Command to RAS Lead Time
Write Command to CAS Lead Time
8
9
8
9
ns
ns
14
5
Output Buffer Turn-off Delay Time from WE tWEZ
3
3
Data Set-up Time
tDS
tDH
0
0
0
ns 7ꢀ 12
ns 7ꢀ 12
ns
Data Hold Time
7
8
10
40
12
80
50
40
0
Data Hold Time referenced to RAS
OE to Data-in Delay Time
RAS to WE Delay Time
Column Address to WE Delay Time
CAS to WE Delay Time
Data to CAS Delay Time
Data to OE Delay Time
Access Time from OE
tDHR
tOED
tRWD
tAWD
tCWD
tDZC
tDZO
tOEA
30
12
65
42
32
0
35
12
70
45
35
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
8
8
8
0
0
0
—
3
—
3
—
3
Output Buffer Turn-off Delay Time from OE tOEZ
5
OE Command Hold Time
tOEH
tROH
tOCH
tCHO
tOEP
tWPE
8
9
10
12
10
10
12
12
10
10
10
30
—
100
RAS Hold Time referenced to OE
OE "L" to CAS "H" Lead Time
CAS "H" to OE "L" Lead Time
OE Precharge Time
10
10
10
10
10
6
10
10
10
10
10
8
WE Pulse Width (Output Disable)
CAS Set-up Time for CAS before RAS Cycle tCSR
12
13
12
15
CAS Hold Time for CAS before RAS Cycle
RAS Precharge to CAS Active Time
tCHR
tRPC
6
8
10
20
—
10
25
—
100
CAS Precharge Time (Refresh Counter Test) tCPT
Refresh Period tREF
RAS Pulse Width (CAS before RAS Self-Refresh) tRASS 100
RAS Precharge Time
—
—
—
tRPS
100
—
—
110
0
—
—
130
0
—
—
ns
ns
(CAS before RAS Self-Refresh)
CAS Hold Time (CAS before RAS Self-Refresh) tCHS
0
7/26
¡ Semiconductor
MSM54V32126A
Notes: 1. An initial pause of 200 ms is required after power-up followed by any 8 RAS cycles
(Example : RAS only refresh) before proper device operation is achieved. In case of
usinginternalrefreshcounter,aminimumof8CASbeforeRAScyclesinsteadof8RAS
cycles are required.
2. The AC characteristics assume at t = 3 ns.
T
3. V (Min.) and V (Max.) are reference levels for measuring timing of input signals.
IH
IL
Also,transitiontimesaremeasuredbetweenV andV .InputlevelsattheACtesting
IH
IL
are 3.0 V/0 V.
4. Data outputs are measured with a load of 30 pF.
DOUT reference levels : V /V = 2.0 V/0.8 V.
OH
OL
5. t
(Max.), t
(Max.), t
(Max.) and t (Max.) define the time at which the
REZ
CEZ
WEZ
OEZ
outputsachievetheopencircuitconditionandarenotreferencedtooutputvoltage
levels. This parameter is sampled and not 100% tested.
6. Either t
or t
must be satisfied for a read cycle.
RCH
RRH
7. TheseparametersarereferencedtoCASleadingedgeofearlywritecyclesandtoWE
leading edge in OE controlled write cycles and read modify write cycles.
8. t
, t
, t
and t
are not restrictive operating parameters. They are included
WCS RWD CWD
AWD
in the data sheet as electrical characteristics only. If t
≥ t
(Min.), the cycle is an
WCS
WCS
early write cycle and the data out pin will remain open circuit throughout the entire
cycle; If t ≥ t (Min.), t ≥ t (Min.) and t ≥ t (Min.), the cycle is
RWD
RWD
CWD
CWD
AWD
AWD
areadmodifywritecycleandthedataoutwillcontaindatareadfromtheselectedcell:
If neither of the above sets of conditions is satisfied, the condition of the data out is
indeterminate.
9. Operation within the t
(Max.) limit ensures that t
(Max.) can be met.
is greater than the specified
RCD
RAC
t
t
(Max.) is specified as a reference point only: If t
(Max.) limit, then access time is controlled by t
RCD
RCD
.
RCD
CAC
10. Operationwithinthet
(Max.)limitensuresthatt
(Max.)canbemet. t
(Max.)
(Max.)
RAD
RAC
RAD
RAD
is specified as a reference point only: If t
is greater than the specified t
RAD
limit, then access time is controlled by t
.
AA
11. This is guaranteed by design. (t
= t
- output transition time) This parameter is
DOH
CAC
not 100% tested.
12. Theseparameters aredeterminedby the earliestfalling edge ofCAS1, CAS2, CAS3, or
CAS4.
13. These parameters are determined by the latest rising edge of CAS1, CAS2, CAS3, or
CAS4.
CWL
14. t
should be satisfied by all CASes.
15. t and t
are determined by the time that all CASes are high.
CPT
CP
8/26
¡ Semiconductor
MSM54V32126A
CASn-DQ FUNCTION TABLE
CAS1
CAS2
CAS3
CAS4
DQ0-7
DQ8-15
DQ16-23
DQ24-31
H
H
H
H
H
H
H
H
L
H
H
H
H
L
H
H
L
H
L
*
*
*
*
*
*
*
Enable
*
H
L
*
*
Enable
Enable
*
L
*
*
Enable
*
H
H
L
H
L
*
Enable
Enable
Enable
Enable
*
L
*
*
Enable
*
L
H
L
*
Enable
Enable
*
L
L
*
Enable
*
H
H
H
H
L
H
H
L
H
L
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
L
*
*
Enable
*
L
H
L
*
Enable
Enable
*
L
L
*
Enable
*
L
H
H
L
H
L
Enable
Enable
Enable
Enable
L
L
*
Enable
*
L
L
H
L
Enable
Enable
L
L
L
Enable
Enable
*
Read cycle
Write cycle
Valid Data-out
Write Data
High-Z
Don't Care
9/26
¡ Semiconductor
MSM54V32126A
TIMING WAVEFORM
Read Cycle (Outputs Controlled by RAS)
tRC
tRP
tRAS
RAS
tCSH
tCRP
tCRP
tRCD
tRSH
tCAS
CAS1
|
tCRL
tRAD
tASR tRAH
CAS4
tRAL
tASC
Column
tRCS
tCAH
Row
Address
tAR
tRRH
tRCH
WE
tROH
tOEA
tCAC
OE
tREZ
tOEZ
Valid Data-out
tAA
Open
DQ0 - DQ31
tRAC
"H" or "L"
10/26
¡ Semiconductor
MSM54V32126A
Read Cycle (Outputs Controlled by CAS)
tRC
tRP
tRAS
RAS
tCSH
tCRP
tCRP
tRCD
tRSH
tCAS
CAS1
|
CAS4
tRAD
tASR tRAH
tRAL
tASC
Column
tRCS
tCAH
tRCL
Row
Address
tRCH
tAR
tRRH
WE
tROH
tOEA
tCAC
OE
tCEZ
tOEZ
Valid Data-out
tAA
Open
DQ0 - DQ31
tRAC
"H" or "L"
11/26
¡ Semiconductor
MSM54V32126A
Write Cycle (Early Write)
tRC
tRAS
tRP
tAR
RAS
tCSH
tCRP
tRCD
tRSH
tCAS
CAS1
|
CAS4
tRAD
tRAH
tRAL
tASR
Row
tASC
tCAH
Address
WE
Column
tCWL
tRWL
tWP
tWCH
tWCS
tWCR
OE
tDS
tDH
DQ0 - DQ31
Valid Data-in
tDHR
"H" or "L"
12/26
¡ Semiconductor
MSM54V32126A
Write Cycle (OE Control Write)
tRC
tRAS
tRP
tAR
RAS
tCSH
tCRP
tRCD
tRSH
tCAS
CAS1
|
CAS4
tRAD
tRAH
tRAL
tASR
Row
tASC
tCAH
Column
Address
WE
tCWL
tRWL
tWP
tRCS
tWCR
tOEH
tOED
tDHR
OE
tDS
tDH
DQ0 - DQ31
Valid Data-in
"H" or "L"
13/26
¡ Semiconductor
MSM54V32126A
Read Modify Write Cycle
tRWC
tRAS
tRP
tAR
RAS
tCSH
tCRP
tRCD
tRSH
tCAS
CAS1
|
CAS4
tRAD
tRAH
tRAL
tASR
Row
tASC
tCAH
Address
WE
Column
tCWL
tRWL
tWP
tCWD
tRCS
tAWD
tRWD
tOEA
tOEH
OE
tDZO
tOED
tOEZ
tAA
tDS tDH
Valid
DQ0 - DQ31
Valid Data-in
Data-out
tDZC tCAC
tRAC
"H" or "L"
14/26
¡ Semiconductor
MSM54V32126A
Fast Page Mode Read Cycle with EDO
tRC
tRASP
tRP
tAR
RAS
tCSH
tHPC
tCAS
tRSH
tCAS
tCRP
tCRP
tRCD
tRAD
tCP
tCP
CAS1
|
CAS4
tCAS
tRAL
tASC
tASR
Row
tASC
tCAH
tCAH
tCAH
tASC
tRAH
Column
Column
tRCS
Column
tRCS
tRCH
Address
tRRH
tRCS
tRCH
tRCH
WE
OE
tOEA
tCAC
tAA
tCAC
tCAC
tREZ
tOEZ
tDOH
tDOH
Open
Valid Data-out
Valid Data-out
Valid Data-out
DQ0 - DQ31
tRAC
tAA
tCPA
tAA
tCPA
"H" or "L"
15/26
¡ Semiconductor
MSM54V32126A
Fast Page Mode Write Cycle (Early Write)
tRC
tRASP
tRP
tAR
RAS
tCSH
tHPC
tCAS
tRSH
tCAS
tRAL
tCRP
tRCD
tCRP
tCP
tCP
tCAS
CAS1
|
CAS4
tRAD
tASC
tASR tRAH
Row
tASC
Column
tCWL
tWCH
tCAH
tCAH
tASC tCAH
Column
Column
Address
tCWL
tCWL
tWCH
tWCS
tWCS
tWCS
tWCH
tWP
tWP
tWP
WE
OE
tWCR
tRWL
tDHR
tDS
tDS
tDS
tDH
tDH
tDH
Valid
Data-in
Valid
Data-in
Valid
Data-in
DQ0 - DQ31
"H" or "L"
16/26
¡ Semiconductor
MSM54V32126A
Fast Page Mode Read Modify Write Cycle
tRC
tRASP
tRP
tAR
RAS
tCSH
tPRWC
tCAS
tRSH
tCAS
tRAL
tCRP
tRCD
tCRP
tCP
tCP
tCAS
CAS1
|
CAS4
tRAD
tASC
tASR tRAH
Row
tASC
tCAH
tCAH
tASC tCAH
Column
tCWD
Column
tCWD
Column
Address
tRWL
tCWL
tCWD
tRCS
tCWL
tCWL
WE
tAWD
tOEA
tRWD
tAWD
tOEA
tAWD
tOEA
tWP
tWP
tWP
tROH
tOEH
OE
tOED
tOEZ
tOED
tOEZ
tOED
tOEZ
tAA
tAA
tAA
tDH
tDH
tDH
tDS
tDS
tDS
Valid
Data-out
Valid
Data-out
Valid
Data-out
Valid
Data-in
Valid
Data-in
Valid
Data-in
DQ0 - DQ31
tCAC
tRAC
tCAC
tCAC
"H" or "L"
17/26
¡ Semiconductor
MSM54V32126A
RAS Only Refresh Cycle
tRC
tRP
tRAS
RAS
tRPC
tCRP
CAS1
|
CAS4
tASR tRAH
Row
Address
"H" or "L"
Note: DQs are openꢀ WEꢀ OE = "H" or "L"
18/26
¡ Semiconductor
MSM54V32126A
CAS before RAS Refresh Cycle
tRC
tRP
tRP
tRAS
RAS
tRPC
tCP
tCSR
tCHR
CASn
tCEZ
Open
DQ0 - DQ31
Note: WEꢀ OEꢀ A0 - A8 = "H" or "L"
19/26
¡ Semiconductor
MSM54V32126A
Hidden Refresh Read Cycle
tRC
tRC
tRAS
tRP
tRP
tRAS
RAS
tCRP
tRSH
tRCD
tCHR
CAS1
|
CAS4
tRAD
tRAL
tCAH
tASR tRAH
tASC
Address
Row
Column
tAR
tRCS
tRRH
WE
OE
tROH
tOEA
tCAC
tOEZ
tREZ
DQ0 - DQ31
Valid Data-out
tAA
tRAC
"H" or "L"
20/26
¡ Semiconductor
MSM54V32126A
Hidden Refresh Write Cycle
tRC
tRAS
tRC
tRAS
tRP
tRP
RAS
tCRP
tRCD
tRSH
tCHR
CAS1
|
CAS4
tRAL
tCAH
tRAD
tASC
tASR
tRAH
Row
Column
Address
tAR
tWCS
tWCH
tWP
WE
tRWL
tWCR
OE
tDS
tDH
Valid
DQ0 - DQ31
Data-in
tDHR
"H" or "L"
21/26
¡ Semiconductor
MSM54V32126A
CAS before RAS Refresh Counter Test Cycle
tRAS
tRP
RAS
tCSR
tCHR
tCPT
tRSH
CAS1
|
tCAS
CAS4
tASC
tCAH
Column
Address
tRAL
tRRH
tRCH
Read Cycle
tRCS
tCAC
tROH
WE
OE
tAA
tOEA
tCEZ
tAA
tOEZ
Valid Data-out
Open
DQ0 - DQ31
tRWL
tCWL
tWCH
tWP
Write Cycle
tWCS
WE
OE
tDS
tDH
Open
DQ0 - DQ31
Valid Data-in
tRWL
tCWL
tAWD
Read Modify Write Cycle
tRCS
tCWD
tWP
WE
tOEA
OE
tOED
tOEZ
tCAC
tDS tDH
tAA
Valid
Data-out
Valid
Data-in
Open
DQ0 - DQ31
"H" or "L"
22/26
¡ Semiconductor
MSM54V32126A
CAS before RAS Self-Refresh Cycle
tRASS
tRPS
tRP
tRPC
tCP
RAS
tRPC
tCHS
tCSR
CASn
tCEZ
Open
Note: WEꢀ OEꢀ A0 - A8 = "H" or "L"
DQ0 - DQ31
"H" or "L"
23/26
tRC
tRP
tRASP
tAR
tCSH
RAS
tHPC
tRSH
tCRP
tRCD
tCP
tCP
tCP
tCRP
tCAS
tCAS
tCAS
tCAS
tRAL
CAS1
|
CAS4
tRAD
tASR tRAH
Row
tASC
tCAH
tASC tCAH
Column
tASC tCAH
Column
tASC tCAH
Column
Column
Address
WE
tRRH
tRCS
tRCH
tRCS
tRCH
tRAC
tCHO
tOEP
tOCH
tWPE
tOEA
tCAC
tAA
tOEP
tCAC
OE
tCAC
tAA
tCPA
tDOH
tAA
tCAC
tAA
tOEZ
tOEA
tOEZ tOEA
Valid*
tWEZ
Valid*
tREZ
Valid
Data-out
Valid
Data-out
Valid
Data-out
Open
DQ0 - DQ31
Data-out
Data-out
* : Same Data
"H" or "L"
¡ Semiconductor
PACKAGE DIMENSIONS
SSOP64-P-525-0.80-K
MSM54V32126A
(Unit : mm)
Mirror finish
Package material
Lead frame material
Pin treatment
Epoxy resin
42 alloy
Solder plating
Solder plate thickness
Package weight (g)
5 mm or more
1.34 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
25/26
¡ Semiconductor
MSM54V32126A
(Unit : mm)
TSOPII70/64-P-400-0.65-K
Mirror finish
Package material
Lead frame material
Pin treatment
Epoxy resin
42 alloy
Solder plating
Solder plate thickness
Package weight (g)
5 mm or more
0.59 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
26/26
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