SRAM 256 x 4

Cross-Reference

BRAND	TAG	NUMBER	PIN COUNT	OUTPUT	MARKINGS
AMD	AM	9101	22		AM9101 AM93422
AMD	AM	9111	18		AM9111
American Semiconductors	EA	2101	22		EA2101
Fairchild	F	93422	DIP22-400mil	TS	F93422 F93422A F93422DC F93L422 F93L422A
Harris	HM	6551	22		HM6551
Harris	HM	6561	18		HM6561
Intel	D/P	2101	22	TS	D2101 D2101A
Intel	D/P	2111	18	TS	D2111
Intel	D/P	2112	16	TS	D2112
Intel	D/P	2113			D2113
Intel	D/P	5101	22	TS	D5101 D5101L P5101L
Intel	D/P	8101	22	TS	D8101
Intel	D/P	8111	18	TS	D8111
Intersil	MWS	5101	22		MWS5101 HM6551
Mitsubishi	M5L	2111	18		M5L2111
Motorola	MCM	5101	22		MCM5101 MCM51L01
National Semiconductors	MM	6551	22		MM6551 74C920 MM2101 MM2111
Philips	PCD	5101	22		PCD5101
Pyramid Semiconductor	P4C	422	22		P4C422
Pyramid Semiconductor	P4C	423	24		P4C422
Pyramid Semiconductor	P4C	93U422	22	TS	P93U422 P4C93U422
RCA	CD	5101	22		CD5101 CD1822
Texas Instruments	TMS	2101	22		TMS2101 TMS2102 TMS4039
Texas Instruments	TMS	2111	18		TMS2111 TMS2112 TMS4042
Texas Instruments	TMS	74207	16	TS	SN74S207 74S207
Texas Instruments	TMS	74208	16	TS	SN74S208 74S208
Toshiba	TMM	5101	22		TMM5101
Xicor	X	2212	18		X2212 X2212D X2212L

Static Random-Access Memory 256 x 4 (DIP16, 300mil)(DIP18, 300mil)(DIP22, 300mil)(DIP24, 300mil)

Size

bit	Byte (padded 0000xxxx)	Byte (unpadded)	Hex
1Kb	512B	256B	400hex

Pinout

DIP24
    +--\/--+
A2  |1   24| Vcc
A3  |2   23| A1
A4  |3   22| A0
A5  |4   21| *WE
A6  |5   20| *CS1
A7  |6   19| *OE
Vss |7   18| Vcc
D0  |8   17| CS2
D1  |9   16| D3
O0  |10  15| D2
O1  |11  14| O3
Vss |12  13| O2
    +------+

DIP22
    +--\/--+
A3  |1   22| Vcc
A2  |2   21| A4
A1  |3   20| *WE
A0  |4   19| *CS0
A5  |5   18| *OE
A6  |6   17| CS1
A7  |7   16| O3
GND |8   15| D3
D0  |9   14| O2
O0  |10  13| D2
D1  |11  12| O1
    +------+

DIP18 (only x2212)
    +--\/--+
A7  |1   18| Vcc
A4  |2   17| A6
A3  |3   16| A5
A2  |4   15| I/O4
A1  |5   14| I/O3
A0  |6   13| I/O2
*CS |7   12| I/O1
Vss |8   11| *WE
*ST |9   10| *REC / *ARR
    +------+

DIP18 (all the others)
    +--\/--+
A3  |1   18| Vcc
A2  |2   17| A4
A1  |3   16| *WE
A0  |4   15| *CE1
A5  |5   14| O4
A6  |6   13| O3
A7  |7   12| O2
GND |8   11| O1
D0  |9   10| *CE2
    +------+

DIP16
    +--\/--+
A3  |1   16| Vcc
A2  |2   15| A4
A1  |3   14| *WE
A0  |4   13| *CE1
A5  |5   12| O4
A6  |6   11| O3
A7  |7   10| O2
GND |8    9| O1
    +------+

External links

SRAM page on wikipedia

Files

• 

  F93L422 Datasheet

• 

  AM9101 Datasheet

• 

  AM9111 Datasheet

• 

  D2101A Datasheet

• 

  D2111 Datasheet

• 

  D2112A Datasheet

• 

  D5101 Datasheet

• 

  D8101 Datasheet

• 

  D8111 Datasheet

• 

  MCM5101 Datasheet

• 

  MWS5101 Datasheet

• 

  P4C422 Datasheet

• 

  P4C423 Datasheet

• 

  P93U422 Datasheet

• 

  X2212 Datasheet