71342LA25JGI8

Overview

The Renesas Electronics Corporation 71342LA25JGI8 is a high-speed 32 Kbit (4K x 8) dual-port static random-access memory. It features fully asynchronous parallel operation with a 25 ns access time and operates on a single 5V TTL-compatible power supply. The device supports simultaneous independent access to the same memory location from either port, utilizing on-chip semaphore logic for hardware arbitration. It includes an automatic power-down feature controlled by chip enable signals to minimize standby current.

Feature Summary

• True dual-ported memory cells enabling simultaneous access to identical locations
• On-chip hardware semaphore logic for autonomous port arbitration
• Battery backup capability maintaining data retention at 2V
• Automatic low-power standby mode via chip enable control

Applications

• Systems requiring full-speed error-free operation without external arbitration logic
• Network interface controllers needing concurrent host and peripheral access
• Embedded systems demanding low-latency shared data buffers
• Industrial applications requiring robust hardware-based port synchronization

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Ensure compatibility with existing system voltage levels and timing requirements. Review official datasheets for specific pinout configurations and electrical characteristics relevant to your design implementation.

Selection Notes

Select this component when true dual-port functionality with integrated arbitration is required. It suits designs avoiding external wait states or complex software locking mechanisms. Consider the 25 ns access speed and 64-pin TQFP package constraints. Verify industrial temperature range availability if operating in extreme environments compared to commercial variants.

Part Context

This part belongs to the 71342LA series of dual-port SRAMs, designed for high-performance data buffering. It replaces older generations like the IDT71342LA while maintaining functional compatibility. The LA suffix indicates battery backup support. It serves as a critical interconnect element in multi-master architectures where deterministic access latency is essential.

Replacement Considerations

The 71342LA25PFGI8 is listed as an upgrade alternative offering similar specifications in a different package format.