7134LA35L48M

Overview

The Renesas Electronics Corporation 7134LA35L48M is a high-speed, 4K x 8 Dual-Port Static Random Access Memory (SRAM) designed for systems requiring simultaneous access to the same memory location without on-chip hardware arbitration. It features fully asynchronous operation from either port and supports battery backup with data retention at 2V. The device operates on a single 5V power supply compatible with TTL logic levels and includes an automatic power-down feature controlled by the Chip Enable signal to minimize standby power consumption.

Feature Summary

• True dual-ported memory cells enabling simultaneous independent access to shared memory locations
• Fully asynchronous operation allowing flexible timing control from both ports
• Battery backup capability ensuring data retention down to 2V
• Automatic low-power standby mode activated via Chip Enable control

Applications

• Systems requiring external arbitration or contention handling for simultaneous dual-port access
• Real-time processing applications intolerant of wait states
• Industrial equipment utilizing asynchronous communication protocols
• Military grade embedded systems compliant with MIL-PRF-38535 QML standards

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence or limited availability. Confirm package integrity and lead condition upon receipt. Ensure compatibility with existing system voltage requirements and thermal management specifications before integration into final assemblies.

Selection Notes

Select this component for designs necessitating true dual-port functionality without internal arbitration logic. Consider the asynchronous nature for flexible interface timing. Evaluate the 48-pin LCC package constraints against board space limitations. Verify that the system can handle potential bus contention scenarios inherent in dual-port architectures.

Part Context

This SRAM belongs to the 7134 series, a family of high-speed dual-port memories known for robust performance in industrial and military environments. The LA suffix typically denotes specific temperature ranges or packaging variants within the broader product line, aligning with Renesas' legacy memory solutions for critical applications.

Replacement Considerations

Direct substitutes include IDT7134LA35L48B and other 7134 series variants with matching pinouts and electrical characteristics. Verify functional equivalence regarding access times and power consumption when cross-referencing alternative manufacturers.