72271LA10TF

Overview

The Renesas Electronics Corporation 72271LA10TF is a 32K x 9 SuperSync synchronous FIFO memory device. It features independent read and write clocks, allowing simultaneous data transfer operations. The component supports retransmit operation with fixed low first word data latency time. It includes programmable almost-empty and almost-full flags for status monitoring. The device is available in a 64-pin TQFP package.

Feature Summary

• Independent read and write clock inputs permit simultaneous reading and writing operations
• Retransmit operation functionality with fixed, low first word data latency time
• Programmable almost-empty and almost-full flags for flexible status signaling

Applications

• Data buffering applications requiring high-speed synchronization
• Interprocessor communication interfaces
• Local area network data handling systems

Procurement Notes

Verify the specific suffix 'LA' against official datasheets to confirm voltage levels and temperature ranges. Confirm RoHS compliance status as older variants may differ. Check for moisture sensitivity level requirements during storage and handling. Ensure pin compatibility with existing designs referencing the 722x1 family.

Selection Notes

Select this component when independent clock domains are required for simultaneous read/write operations. The fixed latency characteristic simplifies timing analysis compared to variable delay devices. Verify that the 32K x 9 depth meets system buffer requirements. Consider the 64-pin TQFP package constraints for PCB layout.

Part Context

This part belongs to the 72V281/72271 SuperSync FIFO family from Renesas. These devices are designed for high-performance data buffering. The family eliminates variable clock cycle counting delays found in previous generations. They offer improved latency characteristics for critical path applications.

Replacement Considerations

Check for direct pin-compatible replacements within the 722x1 series. Verify if newer revisions of the 72V281 or 72271 parts meet the same electrical specifications. Ensure any substitute maintains the independent clock capability.