CY7C4231V-25AXCT

FIFOs Memory Overview

The CY7C4231V-25AXCT is a low-voltage, high-speed synchronous FIFO memory with a 2K x 9 organization. It operates at a maximum frequency of 40 MHz with a minimum cycle time of 25 ns and an access time of 15 ns. The device functions on a 3.3V supply (3.14V to 3.63V) with active current of 20 mA. It features independent read and write clocks, programmable Almost Empty/Full flags, and 5V-tolerant inputs. Packaged in a Pb-Free 32-pin TQFP.

FIFOs Memory Feature Summary

• Supports fully asynchronous simultaneous read and write operations using independent clock domains.
• Includes programmable status flags for precise buffer management and overflow prevention.
• Provides width expansion capability by connecting multiple devices for wider data buses.

FIFOs Memory Applications

• High-speed data acquisition systems
• Multi-processor interface buffering
• Communications data buffering

FIFOs Memory Procurement Notes

Verify the specific suffix AXCT against the manufacturer's official ordering guide to confirm package type and lead-free compliance. Ensure the voltage rating matches the system requirements. Check for end-of-life status or alternative recommendations from Infineon before finalizing procurement plans.

FIFOs Memory Selection Notes

Select this component when a 2K depth and 9-bit width are required for synchronous buffering. The 25 ns speed grade suits applications needing up to 40 MHz operation. Consider the industrial temperature range if operating outside commercial limits. Verify pin compatibility with existing designs due to the specific control logic structure.

FIFOs Memory Part Context

This part belongs to the CY7C42X1V family of low-voltage synchronous FIFOs. The family includes densities ranging from 64x9 to 8Kx9. The CY7C4231V specifically provides 2048 words of storage. It utilizes advanced CMOS technology for low power consumption and high performance.

FIFOs Memory Replacement Considerations

Check for CY7C4231V-15 variants for faster timing or CY7C4231V-25AC for standard plastic packages. Verify functional equivalence with other 2Kx9 synchronous FIFOs if cross-brand substitution is necessary.

FIFOs Memory FAQ

How are the programmable flags configured?

The Almost Empty and Almost Full flags are programmed via the WEN2/LD pin. Holding this pin LOW during reset enables loading offset values into internal registers to define flag thresholds.

Can the read and write clocks be synchronized?

Yes, the RCLK and WCLK pins can be tied together for single-clock operation, or they can run independently for asynchronous read/write applications.