71342LA70JI

Overview

The Renesas Electronics Corporation 71342LA70JI is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It provides a storage capacity of 32 kilobits organized as 4K words by 8 bits. The component features independent read/write ports allowing simultaneous access to the same memory location without hardware arbitration. It operates with a maximum access time of 70 nanoseconds and requires a single 5V power supply within the 4.5V to 5.5V range. The device is housed in a 52-lead Plastic Leadless Chip Carrier (PLCC) package designed for surface-mount installation.

Feature Summary

• Supports true dual-port architecture enabling concurrent independent access from two separate systems.
• Provides fully asynchronous operation eliminating the need for external clock synchronization.
• Includes automatic power-down functionality controlled by chip enable signals to minimize standby current.
• Features TTL-compatible inputs compatible with standard logic families.

Applications

• High-performance real-time processing systems requiring low-latency data exchange.
• Industrial equipment control units needing reliable parallel memory interfaces.
• Telecommunications infrastructure components utilizing dual-port buffering.
• Automotive electronic modules requiring robust asynchronous memory solutions.

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm specific suffix designations match exact package and temperature grade requirements. Check for end-of-life status or discontinuation notices prior to finalizing procurement plans. Ensure compliance with relevant environmental regulations applicable to the target deployment region.

Selection Notes

Select this component when simultaneous bidirectional data transfer is required without complex arbitration logic. Choose based on the 70ns access speed requirement and 52-pin PLCC form factor compatibility. Evaluate power consumption needs against the automatic power-down capabilities provided. Consider thermal management requirements associated with the specified operating temperature range.

Part Context

This part belongs to the Renesas 7134 series of dual-port SRAMs, which are CMOS-based memory devices. The series offers various speed grades and packaging options to suit different system integration needs. These components are widely used in applications demanding high-speed, non-volatile-like performance with volatile storage characteristics.

Replacement Considerations

Consult official manufacturer documentation for verified cross-reference part numbers. Verify pinout compatibility and electrical parameter alignment before substituting. Ensure any alternative component meets the same voltage and temperature specifications.