7134LA35JI8

Overview

The 7134LA35JI8 is a high-speed 4K x 8 Dual-Port Static RAM manufactured by Renesas Electronics. It features true dual-ported memory cells allowing simultaneous access to the same location from either port. The device operates asynchronously with a maximum access time of 35 ns and supports a TTL-compatible single 5V power supply (4.5V to 5.5V). It is housed in a 52-pin PLCC package and includes an automatic power-down feature controlled by chip enable inputs for low standby power.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations without on-chip hardware arbitration.
• Fully asynchronous operation from both ports, designed for systems capable of external arbitration or contention handling.
• Automatic power-down mode controlled by chip enable signals to minimize standby power consumption.

Applications

• Systems requiring simultaneous data access from two independent processors or controllers.
• Applications where external arbitration logic is implemented to manage bus contention.
• High-speed buffer memory designs tolerant of wait states during simultaneous port access.

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence. Confirm package integrity and moisture sensitivity levels prior to assembly. Review official datasheets for specific electrical characteristics and operating conditions relevant to your design requirements.

Selection Notes

Select this component when dual-port functionality is required for concurrent data sharing between system elements. Ensure the design can handle potential contention scenarios inherent to asynchronous dual-port architectures. Verify that the 5V supply voltage and PLCC package form factor align with the target board specifications.

Part Context

This device belongs to the 7134 series of high-speed CMOS dual-port static random-access memories. The series is engineered for applications demanding fast, non-blocking memory access from multiple sources. It utilizes standard CMOS technology to provide reliable performance within specified industrial temperature ranges.

Replacement Considerations

Consult official manufacturer documentation for verified cross-reference part numbers. Ensure any substitute maintains identical pinout, voltage levels, and timing parameters to guarantee functional compatibility.