IDT71256SA12Y IDT, Integrated Device Technology Inc, IDT71256SA12Y Datasheet - Page 5

• Manufacturer Part Number: IDT71256SA12Y
• Description: IC SRAM 256KBIT 12NS 28SOJ
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT71256SA12Y

• Format - Memory: RAM
• Memory Type: SRAM
• Memory Size: 256K (32K x 8)
• Speed: 12ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOJ
• Density: 256Kb
• Access Time (max): 12ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: SOJ
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 160mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 28
• Word Size: 8b
• Number Of Words: 32K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 71256SA12Y

Timing Waveform of Read Cycle No. 1
Timing Waveform of Read Cycle No. 2
NOTES:
1. WE is HIGH for Read Cycle.
2. Device is continuously selected, CS is LOW.
3. Address must be valid prior to or coincident with the later of CS transition LOW; otherwise t
4. OE is LOW.
5. Transition is measured ±200mV from steady state.
IDT71256SA
CMOS Static RAM 256K (32K x 8-Bit)
ADDRESS
DATA
V
OUT
CC
ADDRESS
CURRENT
DATA
SUPPLY
OUT
OE
CS
PREVIOUS DATA
I
I
CC
SB
HIGH IMPEDANCE
OUT
t
PU
VALID
t
OH
t
CLZ
t
OLZ
(5)
(5)
t
t
AA
ACS
t
AA
(3)
t
RC
6.42
5
t
OE
(1)
(1,2,4)
t
RC
AA
is the limiting parameter.
Commercial and Industrial Temperature Ranges
DATA
OUT
DATA
t
PD
VALID
t
CHZ
t
OUT
OHZ
(5)
VALID
(5)
t
OH
2948 drw 05
2948 drw 06
,
,