7203L20DB

Overview

The Renesas Electronics Corporation 7203L20DB is a CMOS asynchronous FIFO memory device with a capacity of 2K x 9 bits. It operates on a single 5.0V supply and features a 20ns access time. The component utilizes a 28-pin CDIP package and supports unidirectional data transfer. Designed for multiprocessing and rate buffering, it includes status flags to prevent overflow and underflow.

Feature Summary

• Supports simultaneous asynchronous read and write operations
• Includes Full and Empty status flags for flow control
• Features auto-retransmit capability for pointer reset

Applications

• Multiprocessing systems
• Rate buffer applications
• Data storage and retrieval interfaces

Procurement Notes

Verify the specific suffix requirements against the official datasheet before procurement. Confirm that the CDIP-28 package aligns with the target PCB footprint. Ensure compatibility with 5.0V logic levels and check for RoHS compliance status if required by the manufacturing environment.

Selection Notes

Select this component when a 2K x 9 depth and 20ns speed are required. Consider the 28-pin ceramic dual in-line package for through-hole mounting. Evaluate the need for retransmit functionality and TTL-compatible I/O levels for system integration.

Part Context

This part belongs to the 7203 series of high-speed asynchronous FIFOs. It is functionally compatible with other members of the family, allowing for design flexibility regarding access times and packaging options within the same architectural framework.

Replacement Considerations

Consult the manufacturer's obsolescence notices for approved upgrades. Verify pinout and electrical specifications against potential substitute models to ensure direct replacement without circuit modification.