7134LA70CB

Overview

The Renesas Electronics Corporation 7134LA70CB is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 4K words by 8 bits. The device features asynchronous parallel interface operation with a maximum access time of 70 nanoseconds. It operates on a single 5-volt power supply within a voltage range of 4.5V to 5.5V. The component is housed in a 48-pin ceramic leaded crystal package (CDIP-SB-48). It supports surface mount installation and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• True dual-ported architecture allowing simultaneous independent access from two ports without internal hardware arbitration
• Fully asynchronous operation supporting systems designed for external contention handling or wait state tolerance
• Automatic power-down mode controlled by chip enable signals to minimize standby power consumption

Applications

• High-speed data buffering in communication systems requiring concurrent read/write operations
• Real-time processing engines where external arbitration logic is implemented
• Industrial equipment control systems operating under strict timing constraints

Procurement Notes

Verify the specific suffix CB indicates the 48-pin CDIP ceramic package configuration. Confirm RoHS compliance status as historical records indicate non-compliance for certain variants. Check manufacturer discontinuation notices for availability constraints. Validate moisture sensitivity level requirements for assembly processes. Ensure pinout compatibility with existing PCB footprints before integration.

Selection Notes

Select this component when true dual-port functionality is required without internal arbitration overhead. Suitable for applications needing 70ns access speed with 5V logic levels. Consider package constraints due to the ceramic CDIP form factor. Evaluate thermal management needs for the specified operating temperature range. Compare against faster alternatives if sub-70ns latency is critical.

Part Context

This part belongs to the IDT 7134 series of high-speed dual-port SRAMs originally developed by Integrated Device Technology and later acquired by Renesas. The series is designed for systems requiring simultaneous access to shared memory locations. Variants differ primarily in access speed and physical packaging options while maintaining the core dual-port architecture.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.