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| Part Number | CY7C4251-15AC | CY7C4251V-15AC | CY7C4251-15AXC | CY7C4271-15AC | CY7C4251-15JC |
|---|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Rochester Electronics, LLC |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active |
| Memory Size | 72K (8K x 9) | 72K (8K x 9) | 72K (8K x 9) | 288K (32K x 9) | 1K x 9 |
| Function | Synchronous | Synchronous | Synchronous | Synchronous | Asynchronous |
| Data Rate | 66.7MHz | 66.7MHz | 66.7MHz | 66.7MHz | 66.7MHz |
| Access Time | 10ns | 11ns | 10ns | 10ns | 10ns |
| Voltage - Supply | 4.5 V ~ 5.5 V | 3 V ~ 3.6 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V |
| Current - Supply (Max) | 35mA | 20mA | 35mA | 35mA | 35mA |
| Bus Directional | Uni-Directional | Uni-Directional | Uni-Directional | Uni-Directional | Uni-Directional |
| Expansion Type | Depth, Width | Depth, Width | Depth, Width | Depth, Width | Depth, Width |
| Programmable Flags Support | Yes | No | Yes | Yes | No |
| Retransmit Capability | No | No | No | No | Yes |
| FWFT Support | No | No | No | No | No |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-TQFP | 32-TQFP | 32-TQFP | 32-TQFP | 32-LCC (J-Lead) |
| Supplier Device Package | 32-TQFP (7x7) | 32-TQFP (7x7) | 32-TQFP (7x7) | 32-TQFP (7x7) | 32-PLCC (11.43x13.97) |
