SRAM 32k x 8

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Cross-Reference
BRAND TAG NUMBER PIN COUNT OUTPUT MARKINGS
AMD Am 99C328 Am99C328
Amic LP 61256 DIP28-600mil SOP28 TSOP28 TS LP61256GS
Amic LP 62256 DIP28-600mil SOP28 TSOP28 TS LP62256E
Amic LP 625308 DIP28-600mil SOP28 TSOP28 TS LP625308A
Alliance AS 7C256 DIP28-300mil SOJ28-300mil TSOP28 TS AS7C256 AS7C3256
Asahikasei AKM 62256 AKM62256LFP AKM62256LP AKM62256P
Catalyst CAT 71256 DIP28 SOP28 CAT71C256 CAT71C256L
Cypress CY 62256 DIP28-300mil DIP28-600mil SOP28 TSOP28 . CY62256 CY62256LL CY62256N
Cypress CY 7C1399 LCC28 SOJ28 TSOP28 . CY7C1399
Cypress CY 7C199 DIP28-300mil LCC28 SOJ28 TSOP28 . CY7C199
Fairchild F 84256 DIP28-600mil . F84256 F84256A
Fujitsu MB 84256 DIP28-600mil LCC32 SOP28 TS MB84256 MB84256A MB84256C
G.E. CDM 62256 CDM62256
Hitachi HM 62256 DIP28-300mil DIP28-600mil SOP28 TSOP28 TS HM62256BLP HM62256BLFP HM62256BLSP HM62256BLT HM62256BLTM HM62H256AK HM62H256DK
Intel D/P 51256 D51256
LG Electronics LGS GM 76C256 DIP28-600mil SOP28 TSOP28 TS GM76C256C GM76C256CL GM76C256CLL GM76C256CLE GM76C256CLF GM76C256CLT GM76C256C
LynkSmart LST 62832 DIP28-600mil DIP28-300mil SOP28 TSOP28 TS LST62832I LST62832N LST62832M LST62832TS
Hyundai HY 62256 DIP28-600mil SOP28 TSOP28 TS HY62256 HY62256A HY62256BA
Integrated Dev. Tech. IDT 71256 DIP28-300mil DIP28-600mil SOJ28 . IDT71256 IDT71256L IDT71256S IDT71V256
Issi IS 61256 DIP28-300mil SOJ28 TSOP28 . IS61C256 IS61C256AH IS61LV256 IS61V256
Mitsubishi M5M 5256 DIP28-300mil DIP28-600mil SOP28 . M5M5256 M5M5256BP M5M5256FP M5M5256KP
Mosel/Vitelic MS 62256 DIP28-600mil SOP28 TS MS62256 MS62256L
Motorola MCM 60256 SOP28 . MCM60256C
Motorola MCM 6206 SOP28 . MCM6206 MCM6206B MCM6206C
National Semiconductor NMS 256 DIP28 SOJ28 . NMS256X8 NMS256X8LV
NEC uPD 42832 DIP28-600mil . uPD42832 D42832
NEC uPD 43256 DIP28-600mil SOP28 TSOP28 . uPD43256B D43256B D43256BGU D43256C D43256AC
NKK Micro Devices N 341256 DIP28-300mil SOJ28 TSOP28 . N341256 N341256SJ
OKI MSM 51257 DIP28-600mil SOIC28-330mil TS M51257A MSM51257A
Panasonic MN 44256 DIP28-300mil SOJ28 TSOP28 MN44256 MN44256S MN44256T
Samsung KM 62256 DIP28-600mil SOP28 TSOP28 TS KM62256 KM62256ALP KM62256BL KM62256BLG KM62256BLP KM62256BLS KM62256CL KM62256CLE KM62256CLI
Sharp LH 52256 DIP28-600mil SOJ28 TS LH52256 LH52256L
Sharp LH 52B256 DIP28-300mil DIP28-600mil SOJ28 TSOP28 . LH52B256 LH52B256L
Sharp LH 52258 DIP28 SOJ28 . LH52258 LH52258D
Sony CXK 58256 CXK58256MM CXK58256P
Sony CXK 58257 DIP28-300mil DIP28-600mil SOP28 TS CXK58257AP CXK58257ASP CXK58257AM CXK58257P
Temic HM3 65756 DIP28-300mil DIP28-600mil SOP28 SOJ28 LCC28 LCC32 . HM3-65756H HM65756
Texas Instruments TMS 62256 DIP28-600mil . TMS62256
Toshiba TC 55328 DIP28-300mil SOJ28-300mil TC55328P
United Microelectronics UM 61256 DIP28 TS UM61256 UM61256A UM61256FK
United Microelectronics UM 62256 DIP28 SOP28 TS UM62256 UM62256AM UM62256E UM62256M
Winbond W 24257 DIP28-600mil SOP28 TSOP28 TS W24257 W24M257 W24M257AK
OTHERS DIP28-600mil 256K_S_BGD-A
SRM 22256 DIP28-600mil SRM22256C

Static Random-Access Memory 32K x 8 (DIP28, 600mil)(SOP28, 330mil)(TSOP28, 465mil)

Contents

Size

bit Byte (unpadded) Hex
256Kb 32KB 40000hex

Pinout

DIP28 - SOP28 - SOJ28
         +---\/---+
     A14 | 1    28| Vdd
     A12 | 2    27| *WE
      A7 | 3    26| A13
      A6 | 4    25| A8
      A5 | 5    24| A9
      A4 | 6    23| A11
      A3 | 7    22| *OE
      A2 | 8    21| A10
      A1 | 9    20| *CS
      A0 |10    19| I/O8
    I/O1 |11    18| I/O7
    I/O2 |12    17| I/O6
    I/O3 |13    16| I/O5
     Vss |14    15| I/O4
         +--------+

LCC32
+------------------------------------------+
|  5 A6    |          | 21 I/O7  |         |
|  6 A5    | 14 I/O2  | 22 I/O8  | 30 A13  |
|  7 A4    | 15 I/O3  | 23 *CS   | 31 *WE  |
|  8 A3    | 16 GND   | 24 A10   | 32 Vcc  |
|  9 A2    | 17 NC    | 25 *OE   |  1 NC   |
| 10 A1    | 18 I/O4  | 26 NC    |  2 A14  |
| 11 A0    | 19 I/O5  | 27 A11   |  3 A12  |
| 12 NC    | 20 I/O6  | 28 A9    |  4 A7   |
| 13 I/O1  |          | 29 A8    |         |
+------------------------------------------+

LCC28
+------------------------------------------+
|  4 A8    |          | 18 I/O6  |         |
|  5 A9    |          | 19 I/O7  |         |
|  6 A10   | 13 I/O2  | 20 *CE   | 27 *WE  |
|  7 A11   | 14 GND   | 21 A0    | 28 Vcc  |
|  8 A12   | 15 I/O3  | 22 *OE   |  1 A5   |
|  9 A13   | 16 I/O4  | 23 A1    |  2 A6   |
| 10 A14   | 17 I/O5  | 24 A2    |  3 A7   |
| 11 I/O0  |          | 25 A3    |         |
| 12 I/O1  |          | 26 A4    |         |
+------------------------------------------+

TSOP32
         +-------------+
     *OE | 1 []      32| A10
     A11 | 2         31| *CS
      NC | 3         30| NC
      A9 | 4         29| I/O7
      A8 | 5         28| I/O6
     A13 | 6         27| I/O5
     *WE | 7         26| I/O4
     Vcc | 8         25| I/O3
     A14 | 9         24| Vss
     A12 |10         23| I/O2
      A7 |11         22| I/O1
      A6 |12         21| I/O0
      A5 |13         20| A0
      NC |14         19| NC
      A4 |15         18| A1
      A3 |16         17| A2
         +-------------+

TSOP28
         +-------------+
     *OE | 1 []      28| A10
     A11 | 2         27| *CS
      A9 | 3         26| I/O8
      A8 | 4         25| I/O7
     A13 | 5         24| I/O6
     *WE | 6         23| I/O5
     Vdd | 7         22| I/O4
     A14 | 8         21| Vss
     A12 | 9         20| I/O3
      A7 |10         19| I/O2
      A6 |11         18| I/O1
      A5 |12         17| A0
      A4 |13         16| A1
      A3 |14         15| A2
         +-------------+

External links

SRAM page on wikipedia

Files

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