| PartNumber | IDT71256SA20PZ | IDT71256SA20PZI | IDT71256SA20PZ8 |
| Description | IC SRAM 256K PARALLEL 28TSOP | IC SRAM 256K PARALLEL 28TSOP | IC SRAM 256K PARALLEL 28TSOP |
| Manufacturer | IDT, Integrated Device Technology Inc | IDT, Integrated Device Technology Inc | - |
| Product Category | Memory | Memory | - |
| Series | - | - | - |
| Packaging | Tube | Tube | - |
| Package Case | 28-TSSOP (0.465", 11.80mm Width) | 28-TSSOP (0.465", 11.80mm Width) | - |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | - |
| Interface | Parallel | Parallel | - |
| Voltage Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | - |
| Supplier Device Package | 28-TSOP | 28-TSOP | - |
| Memory Size | 256K (32K x 8) | 256K (32K x 8) | - |
| Memory Type | SRAM - Asynchronous | SRAM - Asynchronous | - |
| Speed | 20ns | 20ns | - |
| Format Memory | RAM | RAM | - |