71342LA20PFG8

Overview

The Renesas Electronics Corporation 71342LA20PFG8 is a high-speed, 32-kbit (4K x 8) dual-port static random-access memory. It features fully asynchronous parallel operation with a 20 ns access time and operates on a single 5V power supply ranging from 4.5V to 5.5V. The device supports simultaneous independent access to the same memory location from either port. It includes an integrated semaphore logic block for hardware-based arbitration between ports and offers automatic power-down capabilities. The component is housed in a 64-pin TQFP surface-mount package.

Feature Summary

• True dual-ported memory cells enable simultaneous independent access to shared memory locations from both ports without contention.
• Integrated semaphore logic provides full on-chip hardware support for signaling and arbitrating access between the two ports.
• Automatic power-down feature allows each port's circuitry to enter a low standby mode when chip enable and semaphore signals are high.

Applications

• Systems requiring simultaneous data exchange between two independent processors or controllers
• Buffering applications where wait states cannot be tolerated
• Hardware-based port arbitration scenarios utilizing internal semaphore flags

Procurement Notes

Verify RoHS compliance status and moisture sensitivity level before integration. Confirm that the specific package variant matches the target PCB footprint. Ensure voltage levels remain within the specified 4.5V to 5.5V range to prevent damage. Check for any recent product change notices regarding manufacturing sites or material composition updates.

Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required. It is suitable for designs needing simultaneous access to shared memory without external arbitration logic. Consider the 64-pin TQFP package constraints and industrial temperature availability if operating outside standard commercial ranges.

Part Context

This part belongs to the 71342 series of dual-port SRAMs. It is functionally similar to other variants in the family but distinguished by its specific 20 ns speed grade, 64-pin TQFP packaging, and LA suffix indicating battery backup capability down to 2V. It serves as a direct replacement for legacy IDT equivalents in existing designs.

Replacement Considerations

IDT71342LA20PFG8 is a confirmed equivalent part number for this component. Verify pinout compatibility and electrical specifications before substitution.