71321LA45J

Memory IC Overview

The Renesas Electronics Corporation 71321LA45J is a high-speed 2K x 8 Dual-Port Static RAM with internal interrupt logic for interprocessor communications. It features an access time of 45 ns and operates on a single 5V supply voltage within the 4.5V to 5.5V range. The device utilizes a 52-pin PLCC package, supporting surface mount installation. It is classified as volatile memory with parallel interface technology.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access by two processors
• Integrated interrupt logic designed specifically for efficient interprocessor communication
• High-speed asynchronous operation facilitating rapid data processing

Memory IC Applications

• Interprocessor communication in multiprocessor systems
• High-speed data buffering between processing units
• Real-time data exchange in embedded control applications

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status as historical data indicates non-compliance. Check moisture sensitivity level (MSL 3) requirements for storage and handling. Validate package integrity upon receipt. Ensure compatibility with existing system voltage levels before integration.

Memory IC Selection Notes

Select this component when dual-port SRAM functionality with integrated interrupts is required. Consider the 45 ns access speed for timing constraints. Evaluate the 52-PLCC package size against board space limitations. Assess power consumption at 5V operation. Compare against alternative densities if larger storage is needed.

Memory IC Part Context

Part of the 71321 series from Renesas, focusing on dual-port SRAM solutions. Designed for applications requiring fast, reliable data sharing between multiple processors. Shares architectural similarities with other members in the family but varies in speed grades and packaging options.

Memory IC Replacement Considerations

Check for direct pin-compatible substitutes within the same series. Verify electrical specifications match original requirements. Consider newer generations with improved efficiency or compliance standards.