7134LA20PDG

Overview

The Renesas Electronics Corporation 7134LA20PDG is a high-speed, 32-kbit (4K x 8) dual-port static random-access memory (SRAM). It features fully asynchronous operation from either port and includes on-chip hardware semaphore logic for port arbitration. The device operates on a single 5V power supply with a typical access time of 20 ns. It is available in a 64-pin TQFP surface-mount package and supports battery backup data retention down to 2V.

Feature Summary

• True dual-ported memory cells allowing simultaneous independent access to the same memory location by both ports.
• Integrated semaphore logic block providing full on-chip hardware support for signaling and arbitration between ports.
• Automatic power-down feature controlled by chip enable signals to enter low standby power mode.
• TTL-compatible single 5V power supply operation with battery backup capability for data retention.

Applications

• Systems requiring simultaneous data exchange between two independent processors without external arbitration.
• High-speed buffer applications where wait states are not tolerated.
• Industrial equipment utilizing real-time engine microcontrollers for critical data storage.
• Military grade systems requiring compliance with MIL-PRF-38535 standards.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for specific ordering suffixes that may indicate package variations or temperature grades. Ensure supply chain stability as lead times may vary based on production cycles.

Selection Notes

Select this component when true dual-port functionality with internal arbitration is required. Compare access times against system timing requirements. Consider package availability and thermal characteristics for surface-mount implementations. Evaluate power consumption profiles including standby modes for battery-operated applications.

Part Context

This part belongs to the 7134LA series of dual-port SRAMs manufactured by Renesas Electronics. It shares architectural similarities with other members like the 71342 and IDT7134 families. The LA suffix typically denotes industrial temperature range capabilities. It serves as a key memory solution for parallel interface designs needing high-speed concurrent access.

Replacement Considerations

IDT71342LA20PFG8 is a confirmed substitute part number within the same family offering identical electrical specifications and pinout compatibility.