7134LA55CB

Overview

The Renesas Electronics Corporation 7134LA55CB is a high-speed, 32K-bit (4K x 8) dual-port static random-access memory (SRAM). It features fully asynchronous parallel operation with a maximum access time of 55 nanoseconds. The device operates on a single 5V power supply within the 4.5V to 5.5V range and supports battery backup data retention down to 2V. It is housed in a 48-pin ceramic dual in-line package with sidebrazed leads (CDIP-SB-48) designed for through-hole mounting.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports without hardware arbitration.
• Fully asynchronous operation allowing flexible timing control for systems that cannot tolerate wait states or require external contention handling.
• Battery backup capability supporting data retention at voltages as low as 2V, ensuring non-volatile storage during primary power loss.

Applications

• High-performance computing systems requiring concurrent data access from multiple processors.
• Industrial automation controllers needing reliable volatile memory with extended temperature tolerance.
• Telecommunications equipment utilizing dual-port RAM for signal processing and buffering tasks.

Procurement Notes

Verify component authenticity due to end-of-life status. Confirm RoHS compliance requirements as this specific variant may not meet current environmental standards. Validate pin compatibility with existing PCB footprints before integration into new designs.

Selection Notes

Select this component when true dual-port functionality is required for simultaneous read/write operations. Ensure the design accommodates the 48-pin CDIP-SB-48 package constraints. Consider the 55ns access speed against system timing requirements and verify thermal management for the specified operating temperature range.

Part Context

This part belongs to the 7134 series of high-speed CMOS dual-port SRAMs manufactured by Renesas Electronics. The series is engineered for applications demanding high bandwidth and low latency. The 'LA' suffix typically denotes industrial or military-grade temperature ranges compared to commercial variants.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate equivalent dual-port SRAMs with matching 4Kx8 organization, 55ns access time, and 48-pin CDIP packaging.