CY7C4225V-15ASXC

FIFOs Memory Overview

The CY7C4225V-15ASXC is a 1K x 18 low-voltage synchronous FIFO memory fabricated using 0.65 µ CMOS technology. It operates at a maximum frequency of 66.7 MHz with an access time of 11 ns and a cycle time of 15 ns. The device features independent read and write clocks, 3.3V operation, and 5V tolerant inputs. It includes programmable Almost Full/Empty flags, retransmit functionality, and supports depth expansion via cascade pins.

FIFOs Memory Feature Summary

• Supports fully asynchronous and simultaneous read/write operations with independent clock domains.
• Provides five status flags including Empty, Full, Half Full, and two programmable flags for buffer management.
• Enables data retransmission by resetting the internal read pointer to the first physical location upon command.
• Allows depth expansion through dedicated cascade input and output pins for connecting multiple devices.

FIFOs Memory Applications

• High-speed data acquisition systems requiring buffering between disparate data rates.
• Multiprocessor interfaces needing reliable data transfer synchronization.
• Communications buffering applications handling packet-based data streams.

FIFOs Memory Procurement Notes

Verify the specific suffix 'ASC' corresponds to the 64-pin 10x10 STQFP package and commercial temperature range as documented in the official Cypress ordering guide. Confirm that the component meets lead-free requirements if specified by the project standards. Ensure compatibility with 3.3V logic levels and 5V tolerant input specifications for interface design.

FIFOs Memory Selection Notes

Select this component when a 1K word depth with 18-bit width is required for synchronous buffering. Consider the 15-ns speed grade for applications demanding up to 66.7 MHz operation. Evaluate the need for programmable flags and retransmit features against simpler FIFO alternatives. Verify that the 64-pin STQFP package fits the available PCB footprint constraints.

FIFOs Memory Part Context

This part belongs to the CY7C42X5V family of low-voltage synchronous FIFOs, which includes densities ranging from 64x18 to 4Kx18. The family shares common architectural features such as 0.65 µ CMOS process, 3.3V operation, and similar pinouts across different capacities. The CY7C4225V specifically addresses the 1K word capacity requirement within this series.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult official manufacturer documentation for current lifecycle status and recommended replacements.