71342SA55PF8

Overview

The Renesas Electronics Corporation 71342SA55PF8 is a dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 32Kb, organized as 4K words by 8 bits. The device utilizes a parallel interface and operates with an access time of 55 ns. It is supplied in a 64-TQFP surface-mount package. The component supports a supply voltage range of 4.5V to 5.5V and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports simultaneous independent access from two ports for high-throughput data handling
• Includes automatic power-down functionality controlled by chip enable signals
• Provides battery backup capability for data retention at low voltages

Applications

• High-speed digital signal processing systems requiring concurrent data access
• Network communication equipment utilizing buffer memory applications
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required package dimensions and thermal characteristics. Confirm that the selected variant meets all necessary environmental certifications and regulatory standards for the intended deployment region before finalizing procurement orders.

Selection Notes

Evaluate the 55 ns access speed against system timing requirements to ensure adequate performance margins. Consider the 64-TQFP package constraints regarding PCB layout density and thermal dissipation capabilities. Assess the need for dual-port arbitration logic if both ports will frequently access identical memory locations simultaneously.

Part Context

This component belongs to the 71342SA series of asynchronous dual-port SRAMs manufactured by Renesas Electronics. These devices are engineered for applications demanding high-speed data exchange between two independent processors or controllers without the need for external arbitration hardware.

Replacement Considerations

Consult official manufacturer documentation for verified cross-reference part numbers. Ensure any substitute component matches the original pinout, voltage specifications, and package footprint to maintain board compatibility.