72851L15PF

FIFOs Memory Overview

The Renesas 72851L15PF is a dual synchronous FIFO memory device featuring two independent 4K x 9 bit buffers within a single package. It operates on a 5.0V supply with a 15ns access time, supporting both single-clock and asynchronous dual-clock configurations. The component utilizes a 64-pin TQFP surface-mount package and provides dedicated control lines for each buffer to facilitate complex data buffering tasks.

FIFOs Memory Feature Summary

• Dual independent FIFO architecture with separate data and control interfaces
• Supports bidirectional operation and width expansion capabilities
• Programmable almost-empty and almost-full flags for precise flow control

FIFOs Memory Applications

• Bidirectional data buffering between disparate clock domains
• Data width expansion in high-speed digital systems
• Two-level priority data buffering applications

FIFOs Memory Procurement Notes

Verify the specific suffix 'PF' against current manufacturer documentation to confirm pinout compatibility and lead-free status. Confirm availability as this series may be subject to discontinuation notices. Ensure design-in compliance with RoHS directives if required by the target application environment.

FIFOs Memory Selection Notes

Select this component when dual independent buffering is required without external logic overhead. The 15ns speed suits moderate-to-high frequency interfaces. Verify that the 64-pin TQFP footprint fits the PCB layout constraints and that the 5.0V logic levels match the system voltage requirements.

FIFOs Memory Part Context

This part belongs to the Renesas 728xxL series of dual synchronous FIFOs. It is functionally equivalent to two discrete 722xxL devices integrated into one package, offering reduced board space and simplified routing for designers requiring multiple independent memory buffers.

FIFOs Memory Replacement Considerations

The IDT72851L15PF is an alias for this component. Verify pin-for-pin compatibility before substitution.