SRAM 256k x 4

l{| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable" |+ style="background:silver" | Cross-Reference !BRAND !TAG !NUMBER !PIN COUNT !OUTPUT !MARKINGS |- |Pyramid Semiconductor || P4C || 1026 || SOJ28 LCC32 || TS || P4C1026 P4C1026L |- |Samsung || KM || 41464 || || || KM64257A KM64257AL KM64257B KM64258B KM64259B KM64260B |}

Static Random-Access Memory 256K x 4

Size

bit	Byte (padded 0000xxxx)	Byte (unpadded)	Hex
1Mb	256KB	128KB	100000hex

Pinout

SOJ28
         +---\/---+
      A0 | 1    28| Vcc
      A1 | 2    27| A17
      A2 | 3    26| A16
      A3 | 4    25| A15
      A4 | 5    24| A14
      A5 | 6    23| A13
      A6 | 7    22| A12
      A7 | 8    21| A11
      A8 | 9    20| NC
      A9 |10    19| I/O3
     A10 |11    18| I/O2
     *CE |12    17| I/O1
     *OE |13    16| I/O0
     GND |14    15| *WE
         +--------+

LCC32
+-----------------------------------------+
|  5 A10  |          | 21 I/O3  |         |
|  6 A11  | 14 NC    | 22 NC    | 30 A5   |
|  7 A12  | 15 *OE   | 23 NC    | 31 A6   |
|  8 A13  | 16 GND   | 24 NC    | 32 Vcc  |
|  9 A14  | 17 *WE   | 25 A0    |  1 NC   |
| 10 A15  | 18 I/00  | 26 A1    |  2 A7   |
| 11 A16  | 19 I/O1  | 27 A2    |  3 A8   |
| 12 A17  | 20 I/O2  | 28 A3    |  4 A9   |
| 13 *CE  |          | 29 A4    |         |
+-----------------------------------------+

External links

SRAM page on wikipedia

Files

• p4c1026 Datasheet

  p4c1026 Datasheet