7134LA55J8

Overview

The Renesas Electronics Corporation 7134LA55J8 is a high-speed 4K x 8 Dual-Port Static Random Access Memory (SRAM) integrated circuit. It features an access time of 55 ns and operates within a supply voltage range of 4.5 V to 5.5 V. The device utilizes a 48-pin Lead-Free Plastic Leaded Chip Carrier (PDG48) package. It supports asynchronous operation from either port and includes an automatic power-down feature controlled by the chip enable signal for low standby power modes.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports without on-chip hardware arbitration.
• Fully asynchronous operation enables flexible system integration where external arbitration or contention handling is implemented.
• Automatic power-down functionality reduces standby power consumption when the chip enable signal is inactive.

Applications

• Systems requiring simultaneous data access from two independent processors or controllers
• High-speed buffering applications in telecommunications equipment
• Data storage interfaces in industrial control systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free packaging specifications against current datasheets. Check for end-of-life notices or obsolescence warnings prior to procurement. Ensure proper handling procedures are followed due to moisture sensitivity level classification.

Selection Notes

Select this component for designs requiring true dual-port SRAM with 55 ns access speed. Ensure the application can handle potential bus contention during simultaneous accesses. Verify that the 48-pin PLCC package fits the board layout constraints. Confirm power supply stability within the 4.5 V to 5.5 V range for reliable operation.

Part Context

This part belongs to the Renesas 7134 series of high-speed dual-port SRAMs. It is designed for applications needing fast, non-blocking memory access between two masters. The LA suffix indicates industrial temperature range availability and battery backup support capabilities.

Replacement Considerations

Check for equivalent parts from IDT or other manufacturers offering similar dual-port SRAM architectures. Verify pin compatibility and electrical specifications before substitution. Consider newer generations with lower power consumption if available.