7134LA25JI

Overview

The Renesas Electronics Corporation 7134LA25JI is a high-speed, 32-kbit (4K x 8) dual-port static random-access memory. It features fully asynchronous parallel operation with a 25 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 without hardware arbitration. It includes an automatic power-down feature controlled by chip enable inputs for low standby power. The component is housed in a 52-pin PLCC package and supports battery backup data retention.

Feature Summary

• True dual-ported architecture allowing simultaneous access to identical memory locations
• Fully asynchronous operation eliminating wait states
• Automatic power-down mode for reduced standby current consumption
• TTL-compatible single 5V power supply operation

Applications

• Systems requiring external arbitration for dual-port contention
• High-speed data buffering applications
• Network communication equipment
• Industrial control systems

Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued or subject to obsolescence notices. Confirm package integrity and pin compatibility before integration. Check for specific RoHS compliance status variations depending on manufacturing date codes. Ensure design accounts for the specified voltage and temperature ranges during final validation.

Selection Notes

Select this component when true dual-port capability is required for simultaneous read/write operations without internal arbitration logic. Suitable for designs tolerant of external contention management. Verify that the 52-pin PLCC package fits the target PCB layout constraints. Consider the 25 ns access speed against system timing requirements.

Part Context

This device belongs to the 7134LA series of high-speed CMOS dual-port SRAMs. It is designed for applications where on-chip hardware port arbitration is unnecessary. The LA suffix typically denotes commercial or industrial temperature range variants with specific battery backup capabilities compared to other series members.

Replacement Considerations

Check official manufacturer documentation for confirmed substitute part numbers. Verify electrical compatibility including access times, voltage levels, and pin configurations before substitution.