CY7C4225-10AXI

FIFOs Memory Overview

The CY7C4225-10AXI is a 1K x 18 synchronous FIFO memory with an 18-bit data bus. It supports operation up to 100 MHz with an 8 ns maximum access time and 10 ns minimum cycle time. The device operates on a single 5V supply, drawing 45 mA in commercial and 50 mA in industrial ranges. It features independent read and write clocks, programmable flags, and depth expansion capabilities via cascade pins.

FIFOs Memory Feature Summary

• Supports fully asynchronous and simultaneous read/write operations using independent clock domains.
• Provides five status flags including Empty, Full, Half Full, and two programmable Almost Empty/Almost Full indicators.
• Enables depth expansion through dedicated Write and Read Expansion Input/Output pins for cascading multiple devices.

FIFOs Memory Applications

• High-speed data acquisition systems requiring buffering between disparate clock domains.
• Multiprocessor interfaces needing reliable data transfer synchronization.
• Communications buffering applications handling variable data rates.

FIFOs Memory Procurement Notes

Verify the specific suffix AXI against the manufacturer's current datasheet revision to confirm package type and temperature grade. Confirm end-of-life status as distribution channels may list discontinued inventory. Ensure voltage levels match the required 5V ±10% operating range for the intended application environment.

FIFOs Memory Selection Notes

Select this component when an 18-bit wide interface is required alongside synchronous control signals. Compare against the -15 or -25 speed grades if lower frequency operation allows for reduced power consumption. Consider width expansion configurations if wider data paths are needed by connecting multiple units in parallel.

FIFOs Memory Part Context

This part belongs to the CY7C42X5 family of high-speed, low-power synchronous FIFOs manufactured by Infineon Technologies (formerly Cypress). The family includes densities ranging from 64x18 to 4Kx18 words. The CY7C4225 specifically provides 1K word depth, bridging smaller buffer needs with larger capacity options like the CY7C4235.

FIFOs Memory Replacement Considerations

The datasheet notes pin and function compatibility with IDT722X5 series devices. Verify electrical characteristics and timing parameters against specific IDT equivalents before substitution.