The Renesas Electronics 71256SA 5V CMOS SRAM is organized as 32K x 8. All bidirectional inputs and outputs of the 71256SA are TTL-compatible and operation is from a single 5V supply. Fully static asynchronous circuitry is used, requiring no clocks or refresh for operation.
Commercial (0° to 70C) and Industrial (-40° to 85C) temperature options Equal access and cycle times – Commercial and Industrial: 12/15/20/25ns One Chip Select plus one Output Enable pin Bidirectional data inputs and outputs directly TTL-compatible Low power consumption via chip deselect
Attribute
Value
Memory Size
256kbit
Organisation
32K x 8
Number of Words
32K
Number of Bits per Word
8bit
Maximum Random Access Time
12ns
Low Power
Yes
Timing Type
Asynchronous
Mounting Type
Through Hole
Package Type
PDIP-28
Pin Count
28
Dimensions
34.3 x 7.62 x 3.3mm
Height
3.3mm
Maximum Operating Supply Voltage
5.5 V
Width
7.62mm
Length
34.3mm
Maximum Operating Temperature
+70 °C
Minimum Operating Temperature
-0 °C
Minimum Operating Supply Voltage
4.5 V
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