CY7C4251-15AC

FIFOs Memory Overview

The CY7C4251-15AC is a synchronous FIFO memory with an 8K x 9 organization and a 15 ns access time. It operates on a single 5V supply within the commercial temperature range of 0°C to +70°C. The device features independent read and write clocks, programmable Almost Full/Empty flags, and width expansion capability.

FIFOs Memory Feature Summary

• Supports fully asynchronous simultaneous read and write operations using independent clock domains.
• Includes programmable status flags for precise buffer level monitoring.
• Enables data bus width expansion through parallel device configuration.

FIFOs Memory Applications

• High-speed data acquisition systems
• Multiprocessor interface buffering
• Communications data buffering

FIFOs Memory Procurement Notes

Verify the specific suffix 'AC' against official Infineon documentation to confirm the exact package type and lead-free status. Ensure the selected variant matches the required operating temperature range and voltage specifications for the target application environment.

FIFOs Memory Selection Notes

Select this component when an 8K depth and 9-bit width are required for synchronous buffering. Consider the -15 speed grade for applications needing 66.7 MHz operation. Verify compatibility with existing logic levels and power supply constraints before integration.

FIFOs Memory Part Context

This part belongs to the CY7C42X1 family of high-speed, low-power synchronous FIFOs manufactured by Cypress Semiconductor, now part of Infineon Technologies. The family offers various densities from 64x9 to 8Kx9, sharing a common pinout and functional architecture for scalable design.

FIFOs Memory Replacement Considerations

Pin-compatible alternatives include IDT72421, 72201, 72211, 72221, 72231, and 72241. Verify electrical characteristics and timing parameters match the original design requirements before substitution.