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| Part Number | CY7C4255-10AXCT | CY7C4245-10AXCT | CY7C425-10AXCT | CY7C4255-10AXC |
|---|---|---|---|---|
| Manufacturer | Cypress Semiconductor Corp | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Memory Size | 144K (8K x 18) | 72K (4K x 18) | 9K (1K x 9) | 144K (8K x 18) |
| Function | Synchronous | Synchronous | Asynchronous | Synchronous |
| Data Rate | 100MHz | 100MHz | 50MHz | 100MHz |
| Access Time | 8ns | 8ns | 10ns | 8ns |
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V |
| Current - Supply (Max) | 45mA | 45mA | 85mA | 45mA |
| Bus Directional | Uni-Directional | Uni-Directional | Uni-Directional | Uni-Directional |
| Expansion Type | Depth, Width | Depth, Width | Depth, Width | Depth, Width |
| Programmable Flags Support | Yes | Yes | No | Yes |
| Retransmit Capability | Yes | Yes | Yes | Yes |
| FWFT Support | No | No | No | No |
| Operating Temperature | 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 |
| Package / Case | 64-LQFP | 64-LQFP | 32-TQFP | 64-LQFP |
| Supplier Device Package | 64-TQFP (14x14) | 64-TQFP (14x14) | 32-TQFP (7x7) | 64-TQFP (14x14) |
