SRAM 16 x 4

Cross-Reference

BRAND	TAG	NUMBER	MARKINGS
Fujitsu	MB	81256	MB81256 MB81257 MB81258

Bipolar RAM 16 x 4 (DIP16, 300mil)

Size

bit	Byte (padded 0000xxxx)	Byte (unpadded)	Hex
256Kb	64KB	32KB	40000hex

Pinout

    +--\/--+
A0  |1   16| Vcc
*ME |2   15| A1
*WE |3   14| A2
D1  |4   13| A3
*Q1 |5   12| D4
D2  |6   11| *Q4
*Q2 |7   10| D3
GND |8    9| *Q3
    +------+

Files

• 7489 Datasheet

  7489 Datasheet