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| PartNumber | AS7C256B-15PIN | AS7C256B-15JIN | AS7C256B-15JINTR |
| Description | SRAM 256K, 5V, FAST 32K x 8 Asynch SRAM | SRAM 256K, 5V, 15ns, FAST 32K x 8 Asynch SRAM | SRAM 256K, 5V, 15ns, FAST 32K x 8 Asynch SRAM |
| Manufacturer | Alliance Memory | Alliance Memory | Alliance Memory, Inc. |
| Product Category | SRAM | SRAM | Memory |
| RoHS | Y | Y | - |
| Memory Size | 256 kbit | 256 kbit | 256K (32K x 8) |
| Organization | 32 k x 8 | 32 k x 8 | - |
| Access Time | 15 ns | 15 ns | - |
| Interface Type | Parallel | Parallel | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Current Max | 150 mA | 150 mA | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Mounting Style | Through Hole | SMD/SMT | - |
| Package / Case | PDIP-28 | SOJ-28 | - |
| Packaging | Tube | - | Tape & Reel (TR) Alternate Packaging |
| Memory Type | SDR | SDR | SRAM - Asynchronous |
| Series | AS7C256B-15 | AS7C256B-15 | - |
| Type | Asynchronous | Asynchronous | - |
| Brand | Alliance Memory | Alliance Memory | - |
| Product Type | SRAM | SRAM | - |
| Factory Pack Quantity | 25 | 25 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.147798 oz | - | - |
| Package Case | - | - | 28-BSOJ (.300", 7.62mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 28-SOJ |
| Speed | - | - | 15ns |
| Format Memory | - | - | RAM |