7134SA55CB

Overview

The Renesas Electronics Corporation 7134SA55CB is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device utilizes an asynchronous parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports a maximum power consumption of 110 milliamperes. The component is housed in a 48-lead ceramic dual in-line package with sidebrazed contacts (CDIP-SB-48). It is designed for industrial temperature ranges, functioning reliably between -55°C and +125°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports.

Applications

• High-speed data buffering in industrial control systems
• Real-time processing applications requiring concurrent data access
• Embedded systems operating in extreme temperature environments

Procurement Notes

Verify the specific suffix CB indicates the ceramic sidebrazed package variant, distinct from plastic DIP versions. Confirm RoHS compliance status, as this component may not meet current environmental directives. Check for discontinuation notices or last-time-buy dates, as legacy SRAM products often face supply constraints. Ensure the supplier provides traceability documentation for military-grade or extended temperature specifications.

Selection Notes

Select this component when dual-port functionality is required for high-speed data exchange without bus contention. The CDIP-SB-48 package offers superior thermal dissipation and mechanical stability compared to plastic packages. Consider the 55ns access speed for synchronous-like performance in asynchronous systems. Evaluate the extended temperature range suitability for harsh industrial or aerospace environments where standard commercial parts would fail.

Part Context

This part belongs to the Renesas 7134SA series of dual-port SRAMs. It shares architectural similarities with other members like the 7134SA55P but differs in packaging and temperature rating. The series is designed for applications needing fast, independent port access. It represents a legacy CMOS technology line, often superseded by newer generations with lower power consumption or different form factors.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the specific CDIP-SB-48 package. Verify if alternative manufacturers offer equivalent dual-port SRAMs in compatible ceramic packages. Check for functional compatibility regarding voltage levels and timing parameters before substitution.