71342LA25JGI

Overview

The 71342LA25JGI is a high-speed dual-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 32Kb organized as 4K x 8 bits. The device supports asynchronous parallel interface with a maximum access time of 25 ns. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 52-pin PLCC package and is designed for surface mount installation. It supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from either port.
• Integrated hardware semaphore logic block for automatic arbitration and signaling between the two ports.
• Automatic power-down feature controlled by chip enable and semaphore signals to achieve low standby power consumption.

Applications

• High-performance real-time engine systems requiring concurrent data access
• Industrial equipment control units needing reliable dual-port memory
• Embedded systems utilizing semaphore-based inter-process communication

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and moisture sensitivity level handling requirements prior to assembly. Check for official product change notices regarding labeling or packaging updates. Ensure compatibility with existing board designs regarding the 52-PLCC footprint and electrical specifications.

Selection Notes

Select this component when true dual-port functionality with hardware semaphore support is required for synchronous or asynchronous data sharing. Consider the 25 ns access speed and 5V TTL-compatible interface for system integration. Evaluate the 52-PLCC package suitability against available PCB space and mounting constraints. Verify that the industrial temperature range meets the operational environment requirements.

Part Context

This part belongs to the 71342 series of dual-port SRAMs, which are designed for applications requiring high-speed, independent access from multiple masters. The series typically includes variants with different access speeds and package options, such as TQFP and PLCC configurations. The LA suffix indicates specific performance and environmental characteristics compared to other series members.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation. Users should consult official Renesas resources for current obsolescence status and recommended upgrades.