7134LA35L48B

Overview

The Renesas Electronics Corporation 7134LA35L48B is a high-speed 4K x 8 Dual-Port Static RAM. It features true dual-ported memory cells allowing simultaneous access to the same location. The device operates asynchronously with a 35 ns access time and supports parallel interface communication. It functions on a single 5V power supply ranging from 4.5 V to 5.5 V, with a maximum power current of 250 mA. The component utilizes SMD/SMT installation in an LCC-48 package. It supports battery backup for data retention at 2V and includes automatic power-down features controlled by CE.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations without internal arbitration.
• Fully asynchronous operation from either port, suitable for systems requiring external contention handling or wait-state tolerance.
• Automatic low standby power mode activated via chip enable control to reduce overall system energy consumption.

Applications

• Systems requiring hardware-independent dual-port memory sharing
• Asynchronous data buffering between disparate processing units
• Battery-backed memory applications requiring 2V data retention

Procurement Notes

Verify component authenticity through authorized channels as this part is listed as obsolete. Confirm RoHS compliance status and specific package variations against official datasheets before integration. Check for available military-grade equivalents if environmental specifications require higher reliability standards beyond standard industrial ranges.

Selection Notes

Select this component when true dual-port capability is essential for concurrent read/write operations without internal arbitration logic. Ensure the design accommodates external contention management strategies. Verify that the LCC-48 surface mount package aligns with PCB layout constraints and thermal requirements for the target application environment.

Part Context

This SRAM belongs to the 7134LA35 series, designed for high-speed asynchronous dual-port memory needs. It serves as a bridge between different system components where direct hardware arbitration is not feasible. The LA suffix indicates specific package and temperature characteristics within the broader 7134 family.

Replacement Considerations

IDT7134LA35L48B is a confirmed substitute part number for this component. Verify pinout compatibility and electrical parameters before substitution.