71342SA35J

Overview

The Renesas Electronics Corporation 71342SA35J is a dual-port static random access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 4K words by 8 bits. The device features an asynchronous parallel interface with a maximum access time of 35 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 52-pin PLCC package.

Feature Summary

• Supports simultaneous independent access to the same memory location from two separate ports
• Enables full-speed error-free operation without requiring additional discrete logic for expansion
• Includes automatic power-down functionality controlled by chip enable signals

Applications

• High-speed data buffering in industrial equipment
• Real-time engine control systems
• Parallel communication interfaces requiring low latency

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm package integrity and moisture sensitivity handling procedures before assembly. Review official datasheets for pinout compatibility and electrical specifications. Ensure replacement strategies account for end-of-life constraints and long-term availability risks.

Selection Notes

Evaluate system requirements against the 35 ns access speed and 32 Kbit capacity limits. Verify that the 5V supply voltage aligns with existing board power rails. Assess physical space constraints for the 52-PLCC footprint. Consider thermal performance within the specified operating temperature range during design integration.

Part Context

This component belongs to the 71342SA/LA series of high-speed dual-port SRAMs. It is designed to function as a slave device alongside master dual-port RAMs to expand word width in 16-bit or greater systems. The architecture allows seamless data transfer between processors without complex arbitration logic.

Replacement Considerations

Public confirmed substitute part numbers are not available.