72261LA15TF8

Overview

The 72261LA15TF8 is a synchronous FIFO memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 144K bits, organized as 16K words by 9 bits. The device supports a maximum data rate of 66.7MHz with a 10ns access time. It operates on a single 4.5V to 5.5V power supply and draws a maximum supply current of 35mA. The component utilizes a unidirectional bus interface and is housed in a 64-TQFP (10x10) surface-mount package. It includes programmable flags for status indication and supports first-word fall-through functionality.

Feature Summary

• Synchronous operation with independent read and write clocks allows simultaneous data handling.
• Programmable Almost-Empty and Almost-Full flags provide flexible buffer management.
• First-word fall-through capability minimizes latency for critical data streams.
• Unidirectional data flow simplifies integration into point-to-point buffering applications.

Applications

• Network packet buffering in telecommunications equipment
• Video signal processing and frame buffering
• Data communication interface synchronization
• Telecommunications protocol conversion buffers

Procurement Notes

Verify the exact suffix configuration against the manufacturer's official datasheet to ensure pinout and electrical compatibility. Confirm RoHS compliance status as legacy variants may differ from current production standards. Check for obsolescence notices or end-of-life announcements prior to finalizing procurement plans. Ensure the selected package variant matches the target PCB footprint specifications exactly.

Selection Notes

Select this component when a high-density synchronous FIFO with unidirectional data flow is required. The 16K x 9 organization suits applications needing moderate buffer depth with 9-bit data paths. Verify that the 4.5V to 5.5V operating voltage aligns with the system power rails. Consider the 64-TQFP package dimensions for thermal and spatial constraints in the design.

Part Context

This part belongs to the 72261L series of SuperSync FIFOs designed for high-speed data buffering. It is functionally compatible with earlier 5V FIFO families while offering optimized performance for modern digital systems. The series is characterized by low first-word latency and robust flag signaling capabilities for reliable data integrity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official cross-reference guide for potential upgrades or pin-compatible alternatives if this specific model is discontinued or unavailable.