7142LA55L48B

Overview

The Renesas Electronics Corporation 7142LA55L48B is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device features an asynchronous parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports through-hole mounting in a 48-pin plastic dual in-line package (PDIP).

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors.
• Asynchronous operation allowing flexible timing control without a global clock signal.
• Parallel data interface supporting standard bus connections for high-speed data transfer.

Applications

• High-performance embedded systems requiring concurrent data processing.
• Industrial automation controllers needing reliable volatile memory buffering.
• Telecommunications equipment utilizing fast data exchange between subsystems.

Procurement Notes

Verify component authenticity due to potential availability issues. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check datasheet revisions for pinout or electrical specification updates before finalizing procurement orders.

Selection Notes

Select this component when dual-port functionality is required for shared memory applications. Ensure the system design accommodates the 48-pin DIP footprint and 5V logic levels. Consider thermal management requirements if operating near the upper temperature limits specified in the official documentation.

Part Context

This part belongs to the 7142SA/LA series of dual-port SRAMs manufactured by Renesas Electronics. It serves as a non-volatile-free memory solution for applications demanding low latency and independent port access. The LA suffix typically denotes specific packaging or commercial grade variations within the product family.

Replacement Considerations

Consult official Renesas documentation for verified cross-reference part numbers. Verify that any substitute maintains identical pin compatibility, voltage specifications, and access times to ensure seamless integration into existing designs.