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| PartNumber | AS7C256B-12TIN | AS7C256B-12JIN | AS7C256B-12PIN |
| Description | SRAM 256K, 5V, 12ns, FAST 32K x 8 Asynch SRAM | Alliance Memory 28pin SOJ | SRAM 256K, 5V, 12ns, FAST 32K x 8 Asynch SRAM |
| Manufacturer | Alliance Memory | - | - |
| Product Category | SRAM | - | - |
| RoHS | Y | - | - |
| Memory Size | 256 kbit | - | - |
| Organization | 32 k x 8 | - | - |
| Access Time | 12 ns | - | - |
| Interface Type | Parallel | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Current Max | 150 mA | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSOP-28 | - | - |
| Memory Type | SDR | - | - |
| Series | AS7C256B-12 | - | - |
| Type | Asynchronous | - | - |
| Brand | Alliance Memory | - | - |
| Product Type | SRAM | - | - |
| Factory Pack Quantity | 234 | - | - |
| Subcategory | Memory & Data Storage | - | - |