Cypress CY7C421-15AXC asynchronous FIFO, 512 × 9-bit depth, 15 ns access time, 50 MHz data rate, 4.5 V–5.5 V supply, 65 mA max, 0 °C–70 °C, 32-TQFP package.
| Parameter | Value |
|---|---|
| Series | CY7C |
| Mounting | Surface Mount |
| Expansion type | Depth, Width |
| Supply voltage | 4.5 V ~ 5.5 V |
| Current - supply | 65mA |
| Operating temperature | 0°C~70°C |
| Package | Tray |
| Function | Asynchronous |
| Data rate | 50MHz |
| Access time | 15ns |
| Memory size | 4.5K (512 x 9) |
| FWFT support | No |
| Case | 32-TQFP |
| Bus directional | Uni-Directional |
| Retransmit capability | Yes |
| Programmable flags support | No |
The Cypress CY7C421-15AXC is an asynchronous FIFO with a 512 × 9-bit memory array, designed for unidirectional data buffering. It offers a 15 ns access time and a 50 MHz data rate.
The FIFO supports retransmit capability, allowing the read pointer to be reset to the beginning of the stored data without clearing the contents.
The CY7C421-15AXC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.
The CY7C421 family shares a common pinout across density options. A higher-density sibling such as the CY7C422 (1K × 9) or CY7C423 (2K × 9) is pin-compatible and may serve as a functional substitute if the larger FIFO depth is acceptable, but this requires verifying the system's addressing and flag logic.
The CY7C421-15AXC is rated for the commercial temperature range of 0 °C to 70 °C.