71342LA20PFG

Overview

The Renesas Electronics Corporation 71342LA20PFG is a high-speed, 32Kb (4K x 8) dual-port static random-access memory. It features fully asynchronous parallel operation with a 20ns access time and operates on a single 5V power supply ranging from 4.5V to 5.5V. The device utilizes true dual-ported memory cells allowing simultaneous independent access to the same location. It includes an on-chip semaphore logic block for hardware port arbitration and supports automatic low-power standby modes.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared locations without wait states.
• Integrated hardware semaphore signaling block for automatic arbitration between ports.
• Fully asynchronous operation compatible with TTL standards on a single 5V supply.
• Automatic power-down feature controlled by chip enable and semaphore signals.

Applications

• High-performance real-time industrial equipment requiring fast data exchange.
• Systems necessitating simultaneous independent access to shared memory buffers.
• Embedded controllers utilizing hardware-based port arbitration mechanisms.

Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete or end-of-life. Confirm package integrity and moisture sensitivity handling procedures prior to assembly. Cross-reference datasheet revisions to ensure compatibility with existing system designs. Validate electrical specifications against current operating requirements before procurement.

Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required. Ensure the design accommodates the 64-pin TQFP surface-mount package constraints. Verify that the 20ns access speed meets the system timing requirements. Consider the 4.5V to 5.5V operating voltage range for power supply design.

Part Context

This component belongs to the 71342LA series of dual-port SRAMs manufactured by Renesas Electronics. It provides a specialized solution for applications needing concurrent read/write operations from two independent masters. The LA suffix typically denotes specific temperature ranges and battery backup capabilities within the product family.

Replacement Considerations

Public confirmed substitute part numbers: IDT71342LA20PFG