CY7C4225-25AC

FIFOs Memory Overview

The CY7C4225-25AC is a synchronous FIFO memory integrated circuit manufactured by Cypress Semiconductor Corp. It features an organization of 1K x 18 bits, providing a total storage capacity of 18 kilobits. The device supports asynchronous operation with a maximum access time of 25 nanoseconds and a cycle time of 35 nanoseconds. It operates within a voltage range of 3V to 3.6V and functions at a maximum clock frequency of 28.57 MHz. The component is housed in a 32-pin Plastic Quad Flat Package (PQFP) or TQFP-32 package, suitable for surface mount applications.

FIFOs Memory Feature Summary

• Supports asynchronous data transfer operations
• Includes retransmit capability for data integrity
• Utilizes CMOS technology for low power consumption

FIFOs Memory Applications

• Data buffering in high-speed digital systems
• Interface bridging between different clock domains
• Temporary storage in communication protocols

FIFOs Memory Procurement Notes

Verify the specific package variant and lead-free status against the official datasheet, as suffixes may indicate environmental compliance differences. Confirm the exact pinout and electrical specifications match the design requirements before integration. Ensure the source document explicitly identifies the part number as CY7C4225-25AC to avoid confusion with similar synchronous FIFO models in the family.

FIFOs Memory Selection Notes

Select this component when a small-depth, wide-data-width buffer is required for asynchronous interfaces. The 1K x 18 organization suits applications needing moderate storage with parallel data paths. Consider the 25ns access speed for systems operating below 30MHz. Evaluate the 32-pin QFP package constraints against available PCB real estate and thermal management needs.

FIFOs Memory Part Context

This part belongs to the CY7C42xx series of low-voltage synchronous FIFOs from Cypress. While the series typically includes faster variants like the 15ns and 11ns versions, the -25AC designation specifically denotes the slower 25ns access time variant. It shares the fundamental architecture and pinout compatibility with other members of the CY7C42xx family, differing primarily in performance speed and voltage tolerances.

FIFOs Memory Replacement Considerations

Direct replacements include CY7C4225V-15ASXC for faster performance or CY7C4225-15AC if lower speed is acceptable but package variations exist. Verify pin compatibility and voltage levels when substituting with other 1Kx18 FIFOs from Cypress or third-party manufacturers.