7134LA55P

Overview

The Renesas Electronics Corporation 7134LA55P is a high-speed, 32K-bit (4K x 8) dual-port static random-access memory (SRAM). It features asynchronous parallel interface operation with a maximum access time of 55 ns. The device operates on a single 5V power supply within the 4.5V to 5.5V range and supports battery backup for data retention down to 2V. It is housed in a 48-pin plastic dual in-line package (PDIP) designed for through-hole mounting.

Feature Summary

• True dual-ported memory cells enable simultaneous independent access to the same memory location from both ports without internal hardware arbitration.
• Fully asynchronous operation allows flexible timing control for systems that cannot tolerate wait states or utilize external contention management.
• Automatic power-down feature controlled by chip enable signals reduces standby power consumption significantly when the device is inactive.

Applications

• Systems requiring simultaneous data exchange between two independent processors or controllers
• High-speed buffering applications where zero-wait-state performance is critical
• Industrial control systems utilizing asynchronous communication protocols
• Embedded memory solutions for legacy hardware architectures

Procurement Notes

Verify component authenticity due to end-of-life status. Confirm RoHS compliance requirements as this specific variant may not meet current environmental standards. Validate pin compatibility and electrical specifications against existing design constraints before integration into new production cycles.

Selection Notes

Select this component for designs requiring true dual-port functionality with asynchronous timing flexibility. Ensure the system architecture can handle potential bus contention during simultaneous accesses. Verify that the 48-pin DIP package fits the target PCB layout and that the operating temperature range meets environmental specifications.

Part Context

This part belongs to the 7134LA series of high-speed CMOS dual-port SRAMs manufactured by Renesas Electronics. The series provides scalable memory solutions for applications demanding concurrent read/write operations. The 'LA' suffix typically denotes industrial temperature range capabilities and specific voltage retention characteristics compared to standard commercial variants.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, direct pin-to-pin replacements must be verified against official manufacturer cross-reference lists or equivalent functional alternatives with matching speed and package specifications.