SRAM 1k x 8

Cross-Reference

BRAND	TAG	NUMBER	PIN COUNT	OUTPUT	MARKINGS
Cypress	CY	7C130	48	.	CY7C130 CY7C130A
Cypress	CY	7C140	48	.	CY7C140
Intel	D/P	2308	24	TS	D2308
Intel	D/P	8185	18	.	D8185
Mostek	MK	4118	24	.	MK4118N MK4118J MK4118P

Static Random-Access Memory 1K x 8 (DIP18, 300mil)(DIP24, 600mil)(DIP48, 600mil)

Size

bit	Byte	Hex
8Kb	1KB	2000hex

Pinout

DIP48
          +---\/---+
     *CEl | 1    48| Vcc
    R/*Wl | 2    47| *CEr
   *BUSYl | 3    46| R/*Wr
    *INTl | 4    45| *BUSYr
     *OEl | 5    44| *INTr
      A0l | 6    43| *OEr
      A1l | 7    42| A0r
      A2l | 8    41| A1r
      A3l | 9    40| A2r
      A4l |10    39| A3r
      A5l |11    38| A4r
      A6l |12    37| A5r
      A7l |13    36| A6r
      A8l |14    35| A7r
      A9l |15    34| A8r
    I/O0l |16    33| A9r
    I/O1l |17    32| I/O7r
    I/O2l |18    31| I/O6r
    I/O3l |19    30| I/O5r
    I/O4l |20    29| I/O4r
    I/O5l |21    28| I/O3r
    I/O6l |22    27| I/O2r
    I/O7l |23    26| I/O1r
      GND |24    25| I/O0r
          +--------+

DIP24
         +---\/---+
      A7 | 1    24| Vcc
      A6 | 2    23| A8
      A5 | 3    22| A9
      A4 | 4    21| *WE
      A3 | 5    20| *OE
      A2 | 6    19| *L
      A1 | 7    18| *CE
      A0 | 8    17| I/O7
    I/O0 | 9    16| I/O6
    I/O1 |10    15| I/O5
    I/O2 |11    14| I/O4
     GND |12    13| I/O3
         +--------+

DIP18
         +---\/---+
      A0 | 1    18| Vcc
      A1 | 2    17| RD
      A2 | 3    16| WR
      A3 | 4    15| ALE
      A4 | 5    14| CS
      A5 | 6    13| CE1
      A6 | 7    12| CE2
      A7 | 8    11| A9
     Vss | 9    10| A8
         +--------+

External links

SRAM page on wikipedia

Files

• 

  CY7C130 Datasheet

• 

  D2308 Datasheet

• 

  D8185 Datasheet

• 

  MK4118 Datasheet