71321LA25PF8

Memory IC Overview

The Renesas Electronics Corporation 71321LA25PF8 is a high-speed, 16Kbit (2K x 8) dual-port static RAM featuring asynchronous parallel interfaces. It integrates internal interrupt logic to facilitate interprocessor communications without additional discrete logic. The device operates within a voltage range of 4.5V to 5.5V and supports access times of 25ns. It is housed in a 64-TQFP surface-mount package with dimensions of 14x14mm.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access by two processors
• Integrated interrupt logic for efficient interprocessor communication
• Automatic power-down mode controlled by chip enable signals
• Asynchronous operation suitable for master/slave memory configurations

Memory IC Applications

• Interprocessor communication in multi-processor systems
• Master dual-port RAM configuration in 16-bit or wider word width systems
• High-speed data buffering between asynchronous components

Memory IC Procurement Notes

Verify the specific suffix 'F8' against official datasheets to confirm tape and reel packaging requirements. Confirm RoHS compliance status as legacy variants may differ. Ensure supply chain partners provide valid traceability documentation for this specific Renesas part number before finalizing procurement orders.

Memory IC Selection Notes

Select this component when designing systems requiring independent dual-port access with integrated signaling. Compare access speeds against other LA series variants if timing constraints are critical. Verify that the 64-TQFP package fits the target PCB footprint and thermal management requirements.

Memory IC Part Context

This part belongs to the 71321/71421 family of dual-port SRAMs. The 71321 serves as the master port, while the 71421 acts as the slave port in extended width applications. This specific model represents an asynchronous variant optimized for general-purpose high-speed memory interfacing.

Memory IC Replacement Considerations

Officially documented substitutes include the 71321LA20PFG8 and 71321LA25PFGI. Verify pin compatibility and electrical specifications before substitution.