7142LA100L48B

Overview

The 7142LA100L48B is a 16Kbit (2K x 8) dual-port asynchronous SRAM manufactured by Renesas Electronics. It operates on a single 5V supply with an access time of 100 ns. The device features independent read/write ports for simultaneous data transfer, supporting master-slave configurations. It includes automatic power-down capabilities controlled by chip enable signals to minimize standby current. The component is housed in a 48-lead LCC package and supports industrial temperature ranges.

Feature Summary

• Dual-port architecture enabling simultaneous independent access from two distinct processors or systems
• Automatic power-down mode activated by chip enable signals to reduce standby power consumption
• Asynchronous interface designed for seamless integration as a slave memory unit alongside master controllers

Applications

• High-speed data buffering between asynchronous processing units
• Master-slave dual-port memory configurations in embedded systems
• Real-time data logging and storage in industrial control applications

Procurement Notes

Verify the specific suffix L48B to confirm the 48-lead LCC package variant. Confirm RoHS compliance status as older batches may differ. Check for obsolescence notices since this series has been superseded by newer generations. Ensure voltage requirements match your system's 5V logic levels before procurement.

Selection Notes

Select this part when simultaneous bidirectional data access is required without bus contention. Compare against the 7132 series if a dedicated master controller interface is needed. Consider package availability constraints due to the legacy status of the 7142LA family. Verify thermal performance within the specified operating temperature range for your enclosure design.

Part Context

This component belongs to the IDT/Renesas 7142LA high-speed dual-port SRAM family. It is often paired with the 7132LA series to form complete dual-port memory solutions. The technology represents a mature CMOS process optimized for low power and high reliability in critical data storage applications.

Replacement Considerations

Check for direct pin-compatible upgrades within the Renesas portfolio. Verify that alternative dual-port SRAMs support the same 2Kx8 organization and 100ns speed grade. Ensure substitute components maintain compatibility with existing master-slave handshake protocols.