7201LA25TP

Overview

The Renesas Electronics Corporation 7201LA25TP is an asynchronous FIFO memory IC with a storage capacity of 4.5K bits, organized as 512 words by 9 bits. It features a unidirectional data bus architecture and operates within a supply voltage range of 4.5 V to 5.5 V. The device supports a maximum clock frequency of 28.5 MHz with an access time of 25 ns. It is housed in a 28-pin PDIP package and is designed for through-hole mounting.

Feature Summary

• Provides first-in-first-out data buffering using Full and Empty flags to prevent data loss or corruption during transfer operations.

Applications

• Data buffering between microprocessors and peripheral devices
• Interface bridging between systems operating at different clock speeds
• Temporary data storage in high-speed digital signal processing chains

Procurement Notes

Verify component authenticity due to end-of-life status. Confirm RoHS compliance requirements against specific project standards. Ensure the 28-pin PDIP package aligns with existing PCB footprints. Validate that the 5V logic levels match system interface voltages. Check for available surplus stock from authorized distributors if new production units are unavailable.

Selection Notes

Select this component when a simple, unidirectional asynchronous buffer is required for 9-bit wide data paths. It is suitable for applications needing moderate speed up to 28.5 MHz without complex control logic. Consider alternative dual-port FIFOs if simultaneous read/write access from independent clocks is necessary. Evaluate pin compatibility if replacing older IDT variants in legacy designs.

Part Context

This part belongs to the Renesas 7201 series of asynchronous FIFO memories. It serves as a specialized memory solution for managing data flow in digital systems where timing mismatches occur between source and destination components. The 7201 series is known for its straightforward interface and reliable data integrity mechanisms.

Replacement Considerations

IDT7205L25TP is listed as an alias for this component family. Verify pinout and electrical specifications before substitution. Other 512x9 asynchronous FIFOs may require logic level translation or firmware adjustments.