71342LA20J8

Overview

The 71342LA20J8 is a 32Kb (4K x 8) dual-port static random-access memory manufactured by Renesas Electronics Corporation. It features an asynchronous parallel interface with a 20 ns access time and write cycle time. The device operates on a single 5V supply, ranging from 4.5V to 5.5V. It is housed in a 52-pin PLCC package designed for surface-mount technology. The component supports commercial temperature operation between 0°C and +70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous parallel interface for flexible system integration
• CMOS technology ensuring low power consumption during operation

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded controllers
• Data storage in industrial automation equipment

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm RoHS compliance requirements against specific project standards, as older variants may not meet current environmental directives. Validate that the 52-PLCC package dimensions align with existing PCB footprints. Ensure supply chain sources provide authentic parts due to potential availability constraints associated with discontinued items.

Selection Notes

Select this component when dual-port functionality is required for concurrent processor access within a 32Kb capacity constraint. The 20 ns speed suits applications needing moderate latency without complex clock synchronization. Consider the PLCC package if board space allows for larger footprints compared to modern QFN options. Verify voltage compatibility with the 4.5V to 5.5V operating range of the host system.

Part Context

This part belongs to the Renesas 71342LA series of dual-port SRAMs. It shares architectural similarities with other members like the 71342LA20PFG8 but differs in packaging and moisture sensitivity levels. The series is characterized by CMOS technology and asynchronous operation, targeting legacy or specific industrial designs requiring reliable dual-port memory solutions.

Replacement Considerations

Direct substitutes include IDT7134LA20J8. Verify pinout and electrical specifications match exactly. Alternative packages such as TQFP-64 exist for the same core specification.