CY7C421-40JC.pdf
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| Part Number | CY7C421-30PC | CY7C421-25PC | CY7C421-10JXC | CY7C421-40JC | CY7C421-25JCT |
| Manufacturer | Cypress Semiconductor Corp | Cypress Semiconductor Corp | Cypress Semiconductor Corp | Cypress Semiconductor Corp | Cypress Semiconductor Corp |
| Series | CY7C | CY7C | CY7C | CY7C | CY7C |
| Package/Case | 28-DIP (0.300", 7.62mm) | 28-DIP (0.300", 7.62mm) | 32-LCC (J-Lead) | 32-LCC (J-Lead) | 32-LCC (J-Lead) |
| Packaging | Bulk | Bulk | Tube | Bulk | Bulk |
| Product Status | Active | Active | Obsolete | Active | Active |
| Programmable | Not Verified | Not Verified | Not Verified | Not Verified | Not Verified |
| Memory Size | 512 x 9 | 512 x 9 | 4.5K (512 x 9) | 512 x 18 | 512 x 9 |
| Function | Asynchronous | Asynchronous | Asynchronous | Synchronous | Asynchronous |
| Data Rate | 25MHz | 28.5MHz | 50MHz | 20MHz | 28.5MHz |
| Access Time | 30ns | 25ns | 10ns | 40ns | 25ns |
| 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 | 4.5 V ~ 5.5 V |
| Current - Supply (Max) | 40mA | 50mA | 85mA | 35mA | 50mA |
| 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 | No | No | No | Yes | No |
| Retransmit Capability | Yes | Yes | Yes | Yes | 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 | Through Hole | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Supplier Device Package | 28-PDIP | 28-PDIP | 32-PLCC (11.43x13.97) | 32-PLCC (11.43x13.97) | 32-PLCC (11.43x13.97) |
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