IDT71V3578S150PFG [IDT]
Cache SRAM, 256KX18, 3.8ns, CMOS, PQFP100, 14 X 20 MM, ROHS COMPLIANT, PLASTIC, TQFP-100;
| 型号： | IDT71V3578S150PFG |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Cache SRAM, 256KX18, 3.8ns, CMOS, PQFP100, 14 X 20 MM, ROHS COMPLIANT, PLASTIC, TQFP-100 时钟 静态存储器 内存集成电路 |
| 文件： | 总18页 (文件大小：496K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
128K x 36, 256K x 18
IDT71V3576S
IDT71V3578S
3.3VSynchronousSRAMs
3.3VI/O,PipelinedOutputs
BurstCounter,SingleCycleDeselect
Description
Features
The IDT71V3576/78 are high-speed SRAMs organized as
128Kx36/256Kx18. TheIDT71V3576/78SRAMscontainwrite, data,
addressandcontrolregisters. InternallogicallowstheSRAMtogenerate
aself-timedwritebaseduponadecisionwhichcanbeleftuntiltheendof
thewritecycle.
◆
128K x 36, 256K x 18 memory configurations
◆
Supports high system speed:
CommercialandIndustrial:
– 150MHz 3.8ns clock access time
– 133MHz 4.2ns clock access time
LBO input selects interleaved or linear burst mode
Theburstmodefeatureoffersthehighestlevelofperformancetothe
systemdesigner,astheIDT71V3576/78canprovidefourcyclesofdata
forasingleaddresspresentedtotheSRAM. Aninternalburstaddress
counteracceptsthefirstcycleaddressfromtheprocessor,initiatingthe
accesssequence.Thefirstcycleofoutputdatawillbepipelinedforone
cycle before it is available on the next rising clock edge. If burst mode
operationisselected(ADV=LOW),thesubsequentthreecyclesofoutput
datawillbeavailabletotheuseronthenextthreerisingclockedges. The
orderofthesethreeaddressesaredefinedbytheinternalburstcounter
and the LBO input pin.
◆
◆
Self-timedwritecyclewithglobalwritecontrol(GW),bytewrite
enable (BWE), and byte writes (BWx)
3.3V core power supply
Power down controlled by ZZ input
3.3V I/O
◆
◆
◆
◆
Packaged in a JEDEC Standard 100-pin plastic thin quad
flatpack (TQFP)
The IDT71V3576/78 SRAMs utilize IDT’s latest high-performance
CMOSprocessandarepackagedinaJEDECstandard14mmx20mm
100-pinthinplasticquadflatpack(TQFP).
PinDescriptionSummary
A
0-A17
Address Inputs
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
Synchronous
Synchronous
Synchronous
Asynchronous
Synchronous
Synchronous
Synchronous
N/A
Chip Enable
CE
CS
0, CS
1
Chip Selects
Output Enable
OE
GW
Global Write Enable
Byte Write Enable
Individual Byte Write Selects
Clock
BWE
BW , BW
(1)
1
2, BW3, BW
4
CLK
Burst Address Advance
Address Status (Cache Controller)
Address Status (Processor)
Linear / Interleaved Burst Order
Sleep Mode
Synchronous
Synchronous
Synchronous
DC
ADV
ADSC
ADSP
LBO
ZZ
Asynchronous
Synchronous
N/A
I/O
0
-I/O31, I/OP1-I/OP4
Data Input / Output
Core Power, I/O Power
Ground
V
V
DD, VDDQ
SS
Supply
Supply
N/A
5279 tbl 01
NOTE:
1. BW3 and BW4 are not applicable for the IDT71V3578.
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
©2012IntegratedDeviceTechnology,Inc.
FEBRUARY 2012
1
DSC-5279/06
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
PinDefinitions(1)
Symbol
Pin Function
I/O
Active
Description
Synchronous Address inputs. The address register is triggered by a combination of the rising edge
of CLK and ADSC Low or ADSP Low and CE Low.
A0-A17
Address Inputs
I
N/A
Address Status
(Cache Controller)
Synchronous Address Status from Cache Controller. ADSC is an active LOW input that is used to load
I
I
LOW
LOW
ADSC
ADSP
the address registers with new addresses.
Address Status
(Processor)
Synchronous Address Status from Processor. ADSP is an active LOW input that is used to load the
address registers with new addresses. ADSP is gated by CE.
Synchronous Address Advance. ADV is an active LOW input that is used to advance the internal
burst counter, controlling burst access after the initial address is loaded. When the input is HIGH the
burst counter is not incremented; that is, there is no address advance.
Burst Address
Advance
I
I
LOW
LOW
ADV
Synchronous byte write enable gates the byte write inputs BW1-BW4. If BWE is LOW at the rising
edge of CLK then BWx inputs are passed to the next stage in the circuit. If BWE is HIGH then the
byte write inputs are blocked and only GW can initiate a write cycle.
Byte Write Enable
BWE
Individual Byte
Write Enables
Synchronous byte write enables. BW1 controls I/O0-7, I/OP1, BW2 controls I/O8-15, I/OP2, etc. Any
I
I
LOW
LOW
BW1-BW4
active byte write causes all outputs to be disabled.
Synchronous chip enable. CE is used with CS0 and CS1 to enable the IDT71V3576/78. CE also gates
ADSP.
Chip Enable
CE
CLK
CS0
CS1
Clock
I
I
I
N/A
This is the clock input. All timing references for the device are made with respect to this input.
Synchronous active HIGH chip select. CS0 is used with CE and CS1 to enable the chip.
Synchronous active LOW chip select. CS1 is used with CE and CS0 to enable the chip.
Chip Select 0
Chip Select 1
HIGH
LOW
Global Write
Enable
Synchronous global write enable. This input will write all four 9-bit data bytes when LOW on the rising
edge of CLK. GW supersedes individual byte write enables.
I
LOW
N/A
GW
I/O0-I/O31
I/OP1-I/OP4
Synchronous data input/output (I/O) pins. Both the data input path and data output path are registered
and triggered by the rising edge of CLK.
Data Input/Output
Linear Burst Order
Output Enable
I/O
Asynchronous burst order selection input. When LBO is HIGH, the interleaved burst sequence is
selected. When LBO is LOW the Linear burst sequence is selected. LBO is a static input and must
not change state while the device is operating.
I
I
I
LOW
LOW
HIGH
LBO
OE
ZZ
Asynchronous output enable. When OE is LOW the data output drivers are enabled on the I/O pins if
the chip is also selected. When OE is HIGH the I/O pins are in a high-impedance state.
Asynchronous sleep mode input. ZZ HIGH will gate the CLK internally and power down the
IDT71V3576/78 to its lowest power consumption level. Data retention is guaranteed in Sleep
Mode.This pin has an internal pull down.
Sleep Mode
VDD
VDDQ
VSS
NC
Power Supply
Power Supply
Ground
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
3.3V core power supply.
3.3V I/O Supply.
Ground.
No Connect
NC pins are not electrically connected to the device.
5279 tbl 02
NOTE:
1. All synchronous inputs must meet specified setup and hold times with respect to CLK.
6.42
2
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
FunctionalBlockDiagram
6.42
3
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
AbsoluteMaximumRatings(1)
RecommendedOperating
TemperatureandSupplyVoltage
Commercial &
Symbol
Rating
Industrial
Unit
Grade
Commercial
Industrial
Temperature(1)
0°C to +70°C
-40°C to +85°C
V
SS
V
DD
VDDQ
(2)
V
V
V
V
TERM
Terminal Voltage with
Respect to GND
-0.5 to +4.6
V
0V
0V
3.3V±5%
3.3V±5%
3.3V±5%
3.3V±5%
(3,6)
TERM
Terminal Voltage with
Respect to GND
-0.5 to VDD
-0.5 to VDD +0.5
-0.5 to VDDQ +0.5
-0 to +70
V
5279 tbl 04
NOTES:
1. TA is the "instant on" case temperature.
(4,6)
TERM
Terminal Voltage with
Respect to GND
V
(5,6)
RecommendedDCOperating
Conditions
TERM
Terminal Voltage with
Respect to GND
V
Commercial
oC
oC
oC
oC
W
Symbol
Parameter
Min.
3.135
3.135
0
Typ.
Max.
3.465
3.465
0
Unit
V
Operating Temperature
T
A(7)
V
DD
Core Supply Voltage
3.3
Industrial
-40 to +85
VDDQ I/O Supply Voltage
3.3
V
Operating Temperature
V
SS
Supply Voltage
0
V
Temperature
Under Bias
-55 to +125
TBIAS
____
V
V
IH
IH
Input High Voltage - Inputs
Input High Voltage - I/O
Input Low Voltage
2.0
VDD +0.3
V
V
2.0
V
DDQ +0.3(1)
0.8
____
____
Storage
-55 to +125
TSTG
Temperature
V
IL
-0.3(2)
V
5279 tbl 06
P
T
Power Dissipation
DC Output Current
2.0
50
NOTES:
1. VIH (max) = VDDQ + 1.0V for pulse width less than tCYC/2, once per cycle.
2. VIL (min) = -1.0V for pulse width less than tCYC/2, once per cycle.
IOUT
mA
5279 tbl 03
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may
cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated
in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
2. VDD terminals only.
3. VDDQ terminals only.
4. Input terminals only.
5. I/O terminals only.
6. This is a steady-state DC parameter that applies after the power supplies have
ramped up. Power supply sequencing is not necessary; however, the voltage
on any input or I/O pin cannot exceed VDDQ during power supply ramp up.
7. TA is the "instant on" case temperature.
100PinTQFPCapacitance
(TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
Input Capacitance
I/O Capacitance
Conditions
IN = 3dV
OUT = 3dV
Max. Unit
CIN
V
5
7
pF
CI/O
V
pF
5279 tbl 07
NOTE:
1. This parameter is guaranteed by device characterization, but not production tested.
6.42
4
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Pin Configuration – 128K x 36
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
80
I/OP3
I/O16
I/O17
I/OP2
I/O15
I/O14
2
79
78
77
3
4
VDDQ
VDDQ
5
VSS
76
75
74
73
VSS
6
I/O18
I/O19
I/O20
I/O21
I/O13
I/O12
I/O11
I/O10
7
8
9
72
71
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VSS
VSS
70
69
68
67
66
VDDQ
VDDQ
I/O22
I/O23
I/O9
I/O8
V
DD / NC(1)
VSS
VDD
NC
65
64
NC
V
DD
ZZ(2)
V
SS
I/O24
I/O25
63
62
I/O7
I/O6
61
60
59
58
57
56
55
54
53
52
51
VDDQ
V
V
DDQ
SS
VSS
I/O26
I/O27
I/O28
I/O29
I/O
I/O
I/O
I/O
5
4
3
2
VSS
VSS
VDDQ
VDDQ
I/O30
I/O31
I/OP4
I/O
I/O
I/OP1
1
,
0
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
5279 drw 02
TQFP
TopView
NOTES:
1. Pin 14 can either be directly connected to VDD, or connected to an input voltage ≥ VIH, or left unconnected.
2. Pin 64 can be left unconnected and the device will always remain in active mode.
6.42
5
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Pin Configuration – 256K x 18
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
80
NC
NC
NC
DDQ
A
NC
NC
10
2
79
78
77
3
4
V
VDDQ
5
VSS
76
75
74
73
VSS
6
NC
NC
I/O8
NC
I/OP1
I/O
7
8
7
9
I/O9
72
71
I/O
6
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VSS
VSS
70
69
68
67
66
65
64
VDDQ
VDDQ
I/O10
I/O11
I/O
I/O
5
4
V
DD / NC(1)
VSS
VDD
NC
NC
V
DD
ZZ(2)
V
SS
I/O12
I/O13
63
62
I/O
I/O
3
2
61
60
59
58
57
56
55
VDDQ
V
V
DDQ
SS
VSS
I/O14
I/O15
I/OP2
NC
I/O
I/O
NC
NC
1
0
VSS
VSS
,
54
53
V
DDQ
NC
NC
NC
VDDQ
NC
NC
NC
52
51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
5279 drw 03
TQFP
TopView
NOTES:
1. Pin 14 can either be directly connected to VDD, or connected to an input voltage ≥ VIH, or left unconnected.
2. Pin 64 can be left unconnected and the device will always remain in active mode.
6.42
6
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range (VDD = 3.3V ± 5%)
Symbol
Parameter
Test Conditions
Min.
Max.
Unit
___
|ILI
|ILZZ
|ILO
|
Input Leakage Current
V
DD = Max., VIN = 0V to VDD
5
µA
ZZ and LBO Input Leakage Current(1)
Output Leakage Current
Output Low Voltage
___
___
___
|
V
V
DD = Max., VIN = 0V to VDD
30
5
µA
µA
V
|
OUT = 0V to VDDQ, Device Deselected
V
OL
OH
IOL = +8mA, VDD = Min.
0.4
___
V
Output High Voltage
IOH = -8mA, VDD = Min.
2.4
V
5279 tbl 08
NOTE:
1. The LBO pin will be internally pulled to VDD and the ZZ pin will be internally pulled to VSS if they are not actively driven in the application.
DC Electrical Characteristics Over the Operating
TemperatureandSupplyVoltageRange(1)
150MHz
133MHz
Symbol
Parameter
Test Conditions
Com'l
Ind
Com'l
Ind
Unit
Operating Power Supply
Current
Device Selected, Outputs Open, VDD = Max.,
295
30
305
250
260
mA
I
DD
(2)
V
DDQ = Max., VIN > VIH or < VIL, f = fMAX
ISB1
CMOS Standby Power
Supply Current
Device Deselected, Outputs Open, VDD = Max.,
DDQ = Max., VIN > VHD or < VLD, f = 0(2,3)
35
115
35
30
100
30
35
110
35
mA
mA
V
ISB2
Clock Running Power
Supply Current
Device Deselected, Outputs Open, VDD = Max.,
105
30
(2,3)
V
DDQ = Max., VIN > VHD or < VLD, f = fMAX
ZZ > VHD, DD = Max.
V
Full Sleep Mode Supply
Current
mA
I
ZZ
5279 tbl 09
NOTES:
1. All values are maximum guaranteed values.
2. At f = fMAX, inputs are cycling at the maximum frequency of read cycles of 1/tCYC while ADSC = LOW; f=0 means no input lines are changing.
3. For I/Os VHD = VDDQ - 0.2V, VLD = 0.2V. For other inputs VHD = VDD - 0.2V, VLD = 0.2V.
AC Test Conditions
AC Test Load
V
DDQ/2
(VDDQ = 3.3V)
50Ω
Input Pulse Levels
0 to 3V
2ns
I/O
Z0 = 50Ω
Input Rise/Fall Times
,
5279 drw 06
Input Timing Reference Levels
Output Timing Reference Levels
AC Test Load
1.5V
Figure 1. AC Test Load
6
5
4
3
1.5V
See Figure 1
5279 tbl 10
ΔtCD
(Typical, ns)
2
1
20 30 50
80 100
Capacitance (pF)
200
5279 drw 07
,
Figure 2. Lumped Capacitive Load, Typical Derating
6.42
7
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
SynchronousTruthTable(1,3)
CE
CS1
ADSP ADSC ADV
GW
BWE BWx
OE
(2)
Operation
Address
Used
CS
0
CLK
I/O
Deselected Cycle, Power Down
Deselected Cycle, Power Down
Deselected Cycle, Power Down
Deselected Cycle, Power Down
Deselected Cycle, Power Down
Read Cycle, Begin Burst
None
None
H
L
X
X
L
X
H
X
H
X
L
X
L
L
X
X
L
X
X
X
X
X
X
X
X
X
X
X
X
L
X
X
X
X
X
X
X
H
H
H
H
L
X
X
X
X
X
X
X
H
L
X
X
X
X
X
X
X
X
H
H
L
X
X
X
X
X
L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
None
L
L
None
L
X
L
X
X
L
None
L
L
External
External
External
External
External
External
External
Next
L
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
DOUT
Read Cycle, Begin Burst
L
L
L
H
L
HI-Z
Read Cycle, Begin Burst
L
L
H
H
H
H
H
H
H
H
H
X
X
X
X
H
H
X
X
H
H
H
H
X
X
X
X
H
H
X
X
DOUT
Read Cycle, Begin Burst
L
L
L
L
DOUT
Read Cycle, Begin Burst
L
L
L
L
H
X
X
L
HI-Z
Write Cycle, Begin Burst
L
L
L
L
D
IN
IN
OUT
Write Cycle, Begin Burst
L
L
L
X
H
H
X
X
H
H
X
X
L
X
X
X
H
H
X
X
H
H
L
D
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Write Cycle, Suspend Burst
Write Cycle, Suspend Burst
Write Cycle, Suspend Burst
Write Cycle, Suspend Burst
X
X
X
X
H
H
H
H
X
X
H
H
X
X
X
X
H
H
H
H
X
X
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
D
Next
L
H
L
HI-Z
Next
L
DOUT
Next
L
H
L
HI-Z
Next
L
DOUT
Next
L
H
L
HI-Z
Next
L
DOUT
Next
L
H
X
X
X
X
L
HI-Z
Next
L
DIN
DIN
DIN
DIN
Next
L
X
L
X
L
Next
L
H
L
Next
L
X
H
H
X
X
H
H
X
X
L
X
X
X
H
H
X
X
H
H
L
Current
Current
Current
Current
Current
Current
Current
Current
Current
Current
Current
Current
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
DOUT
H
L
HI-Z
DOUT
H
L
HI-Z
DOUT
H
L
HI-Z
DOUT
H
X
X
X
X
HI-Z
D
IN
IN
IN
IN
5279 tbl 11
X
L
X
L
D
H
L
D
X
X
D
NOTES:
1. L = VIL, H = VIH, X = Don’t Care.
2. OE is an asynchronous input.
3. ZZ = low for this table.
6.42
8
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Synchronous Write Function Truth Table(1, 2)
GW
BWE
BW1
BW2
BW3
BW4
Operation
Read
H
H
L
X
L
L
L
L
L
X
X
X
X
Read
H
H
X
H
X
H
X
H
X
Write all Bytes
Write all Bytes
Write Byte 1(3)
Write Byte 2(3)
Write Byte 3(3)
Write Byte 4(3)
L
H
L
L
L
L
H
L
H
L
H
H
L
H
H
H
L
H
H
H
H
H
H
H
H
H
5279 tbl 12
NOTES:
1. L = VIL, H = VIH, X = Don’t Care.
2. BW3 and BW4 are not applicable for the IDT71V3578.
3. Multiple bytes may be selected during the same cycle.
AsynchronousTruthTable(1)
Operation(2)
OE
ZZ
I/O Status
Power
Read
Read
L
H
X
X
X
L
L
L
L
H
Data Out
High-Z
Active
Active
Active
Standby
Sleep
Write
High-Z – Data In
High-Z
Deselected
Sleep Mode
High-Z
5279 tbl 13
NOTES:
1. L = VIL, H = VIH, X = Don’t Care.
2. Synchronous function pins must be biased appropriately to satisfy operation requirements.
InterleavedBurstSequenceTable(LBO=VDD)
Sequence 1
Sequence 2
Sequence 3
Sequence 4
A1
A0
0
A1
A0
1
A1
1
A0
A1
A0
First Address
0
0
1
1
0
0
1
1
0
1
0
1
1
1
0
0
1
Second Address
Third Address
1
0
1
0
0
1
0
1
Fourth Address(1)
1
0
0
0
5279 tbl 14
NOTE:
1. Upon completion of the Burst sequence the counter wraps around to its initial state.
LinearBurstSequenceTable(LBO=VSS)
Sequence 1
Sequence 2
Sequence 3
Sequence 4
A1
0
A0
0
A1
0
A0
1
A1
1
A0
0
A1
1
A0
First Address
1
Second Address
Third Address
0
1
1
0
1
1
0
0
1
0
1
1
0
0
0
1
Fourth Address(1)
1
1
0
0
0
1
1
0
5279 tbl 15
NOTE:
1. Upon completion of the Burst sequence the counter wraps around to its initial state.
6.42
9
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
AC Electrical Characteristics
(VDD = 3.3V ±5%, Commercial and Industrial Temperature Ranges)
150MHz
133MHz
Symbol
Parameter
Min.
Max.
Min.
Max.
Unit
____
____
____
____
t
CYC
Clock Cycle Time
6.7
2.6
2.6
7.5
3
ns
ns
ns
(1)
CH
Clock High Pulse Width
Clock Low Pulse Width
t
____
____
(1)
CL
3
t
Output Parameters
____
____
t
CD
Clock High to Valid Data
3.8
4.2
ns
ns
ns
____
____
tCDC
Clock High to Data Change
1.5
0
1.5
0
____
____
(2)
CLZ
Clock High to Output Active
Clock High to Data High-Z
t
(2)
1.5
3.8
1.5
4.2
ns
ns
ns
ns
tCHZ
____
____
tOE
Output Enable Access Time
Output Enable Low to Output Active
Output Enable High to Output High-Z
3.8
4.2
____
____
(2)
(2)
0
0
tOLZ
____
____
3.8
4.2
tOHZ
Set Up Times
____
____
____
____
____
____
____
____
____
____
____
____
t
SA
SS
SD
SW
SAV
SC
Address Setup Time
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
ns
ns
ns
ns
ns
ns
t
Address Status Setup Time
Data In Setup Time
t
t
Write Setup Time
t
Address Advance Setup Time
Chip Enable/Select Setup Time
t
Hold Times
____
____
____
____
____
____
____
____
____
____
____
____
t
HA
HS
HD
HW
HAV
HC
Address Hold Time
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
ns
ns
ns
ns
ns
ns
t
Address Status Hold Time
Data In Hold Time
t
t
Write Hold Time
t
Address Advance Hold Time
Chip Enable/Select Hold Time
t
Sleep Mode and Configuration Parameters
____
____
____
____
t
ZZPW
ZZ Pulse Width
100
100
27
100
100
30
ns
ns
(3)
ZZ Recovery Time
Configuration Set-up Time
tZZR
____
____
(4)
ns
tCFG
5279 tbl 16
NOTES:
1. Measured as HIGH above VIH and LOW below VIL.
2. Transition is measured ±200mV from steady-state.
3. Device must be deselected when powered-up from sleep mode.
4. tCFG is the minimum time required to configure the device based on the LBO input. LBO is a static input and must not change during normal operation.
6.42
10
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Timing Waveform of Pipelined Read Cycle(1,2)
,
6.42
11
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Timing Waveform of Combined Pipelined Read and Write Cycles(1,2,3)
,
6.42
12
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Timing Waveform of Write Cycle No. 1 - GW Controlled(1,2,3)
,
6.42
13
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Timing Waveform of Write Cycle No. 2 - Byte Controlled(1,2,3)
,
6.42
14
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Timing Waveform of Sleep (ZZ) and Power-Down Modes(1,2,3)
,
6.42
15
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Non-Burst Read Cycle Timing Waveform
CLK
ADSP
ADSC
Av
Aw
Ax
Ay
Az
ADDRESS
GW, BWE, BWx
CE, CS1
CS0
OE
(Av)
(Aw)
(Ax)
(Ay)
DATAOUT
,
5279 drw 14
NOTES:
1. ZZ input is LOW, ADV is HIGH and LBO is Don't Care for this cycle.
2. (Ax) represents the data for address Ax, etc.
3. For read cycles, ADSP and ADSCfunction identically and are therefore interchangable.
Non-Burst Write Cycle Timing Waveform
CLK
ADSP
ADSC
Av
Aw
Ax
Ay
Az
ADDRESS
GW
CE, CS
1
0
CS
(Av)
(Aw)
(Ax)
(Ay)
(Az)
DATAIN
,
5279 drw 15
NOTES:
1. ZZ input is LOW, ADV and OE are HIGH, and LBO is Don't Care for this cycle.
2. (Ax) represents the data for address Ax, etc.
3. Although only GW writes are shown, the functionality of BWE and BWx together is the same as GW.
4. For write cycles, ADSP and ADSC have different limitations.
6.42
16
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
OrderingInformation
S
XXX
X
XX
X
X
X
Power
Device
Type
Speed Package
Process/
Temperature
Range
Tube or Tray
Tape and Reel
Blank
8
Blank
I
Commercial (0°C to +70°C)
Industrial (-40°C to +85°C)
G
Restricted hazardous substance device
100-pin Plastic Thin Quad Flatpack (TQFP)
PF
150
133
Frequency in Megahertz
Standard Power
S
128K x 36 Pipelined Burst Synchronous SRAM with 3.3V I/O
256K x 18 Pipelined Burst Synchronous SRAM with 3.3V I/O
5279 drw 13
71V3576
71V3578
PackageInformation
100-Pin Thin Quad Plastic Flatpack (TQFP)
Information available on the IDT website
6.42
17
IDT71V3576, IDT71V3578, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Pipelined Outputs, Burst Counter, Single Cycle Deselect
Commercial and Industrial Temperature Ranges
Datasheet Document History
7/26/99
9/17/99
Updatedtonewformat
Revised ISB1 and IZZ for speeds 100–200MHz
Pg. 8
Pg. 11
Revised tCDC (min.) at 166MHz
Pg. 18
Added 119 BGA package diagram
Pg. 20
AddedDatasheetDocumentHistory
12/31/99
04/04/00
Pg. 1, 8, 11, 19
Removed 166, 183, and 200MHz speed grade offerings
(see IDT71V35761 and IDT71V35781)
AddedIndustrialTemperaturerangeofferings
Pg. 1, 4, 8, 11, 19
Pg.18
Added100TQFPPackageDiagramOutline
Pg. 4
AddcapacitanccetablefortheBGApackage;AddIndustrialtemperaturetotable;
InsertnotetoAbsoluteMaxRatingandRecommendedOperatingTemperaturetables
AddnotetoBGApinconfigurations;correctedtypoinpinout
Addnewpackageoffering, 13x15mmfBGA
Pg. 7
06/01/00
07/15/00
Pg. 20
Pg. 7
CorrectBG119PackageDiagramOutline
AddnotereferencetoBG119pinout
Pg. 8
Add DNU reference note to BQ165 pinout
Pg. 20
UpdateBG119PackageDiagramOutlineDimensions
RemovePreliminaryStatus
10/25/00
Pg. 8
Pg. 4
Add reference note to pin N5 on BQ165 pinout, reserved for JTAG TRST
Updated165BGAtableinformationfromTBDto7
04/22/03
06/30/03
Pg. 1,2,3,5-9
Pg. 5-8
UpdateddatasheetwithJTAGinformation
Removed note for NC pins (38,39(PF package); L4, U4 (BG package) H2, N7 (BQ package))
requiring NC or connection to Vss.
Pg. 19,20
Pg. 21-23
Pg. 24
AddedtwopagesofJTAGSpecification,ACElectrical,DefinitionsandInstructions
Removedoldpackageinformationfromthedatasheet
UpdatedorderinginformationwithJTAGandYsteppinginformation. Addedinformation
regarding packages available IDT website.
01/01/04
01/20/10
Pg.21
Added"Restrictedhazardoussubstancedevice"toorderinginformation.
CombinedSandYSdatasheetintoonedatasheet.DeletedJTAGandpackagesBGA,fBGA.
Removed "IDT" from orderable part number.
RemovedYS.DeletedJTAGinfofromFunctionalBlockdiagramandOrderinginformation.
Deleted JTAG pins TMS, TDI, TCK and TDO from 3 tables.Updated ordering information to
include tube or tray and tape & reel.
Pg.1,2,4,7,8
Pg.19,20,21
Pg.1,2,3,7,17
02/25/12
CORPORATE HEADQUARTERS
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for SALES:
for Tech Support:
ipchelp@idt.com
800-345-7015
800-345-7015 or
408-284-8200
fax: 408-284-2775
www.idt.com
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
6.42
18
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