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| PartNumber | IDT71256SA20Y | IDT71256SA20YG | IDT71256SA20Y8 |
| Description | IC SRAM 256K PARALLEL 28SOJ | 32K X 8 STANDARD SRAM, 20 ns, PDSO28 | |
| Manufacturer | IDT, Integrated Device Technology Inc | IDT, Integrated Device Technology Inc | |
| Product Category | Memory | Memory | Memory |
| Series | - | - | - |
| Packaging | Tube | - | Tape & Reel (TR) |
| Package Case | 28-BSOJ (.300", 7.62mm Width) | - | 28-BSOJ (.300", 7.62mm Width) |
| Operating Temperature | 0°C ~ 70°C (TA) | - | 0°C ~ 70°C (TA) |
| Interface | Parallel | - | Parallel |
| Voltage Supply | 4.5 V ~ 5.5 V | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | 28-SOJ | - | 28-SOJ |
| Memory Size | 256K (32K x 8) | - | 256K (32K x 8) |
| Memory Type | SRAM - Asynchronous | - | SRAM - Asynchronous |
| Speed | 20ns | - | 20ns |
| Format Memory | RAM | - | RAM |