SRAM 4k x 4

Cross-Reference

BRAND	TAG	NUMBER	PIN COUNT	OUTPUT	MARKINGS
Cypress	CY7	168	20	TS	CY7C168A
Integrated Dev. Tech.	IDT	6168	20	.	IDT6168SA IDT6168LA
Micron	MT	1606 1607	24	.	MT5C1606 MT5C1607
Sony	CXK	5416	20	TS	CXK5416P

Static Random-Access Memory 4K x 4 (DIP20, 300mil)(DIP24, 300mil)

Size

bit	Byte (padded 0000xxxx)	Byte (unpadded)	Hex
4Kb	4KB	2KB	1000hex

Pinout

DIP24
         +---\/---+
      A4 | 1    24| Vcc
      A5 | 2    23| A3
      A6 | 3    22| A2
      A7 | 4    21| A1
      A8 | 5    20| A0
      A9 | 6    19| D4
     A10 | 7    18| D3
     A11 | 8    17| Q4
      D1 | 9    16| Q3
      D2 |10    15| Q2
     *CE |11    14| Q1
     GND |12    13| *WE
         +--------+

DIP20
         +---\/---+
      A4 | 1    20| Vcc
      A5 | 2    19| A3
      A6 | 3    18| A2
      A7 | 4    17| A1
      A8 | 5    16| A0
      A9 | 6    15| I/O0
     A10 | 7    14| I/O1
     A11 | 8    13| I/O2
     *CE | 9    12| I/O3
     GND |10    11| *WE
         +--------+

External links

SRAM page on wikipedia

Files

• 
  CXK5416P Datasheet
• 
  CY7C168A Datasheet
• 
  IDT6168SA Datasheet
• 
  MT5C1606 Datasheet