71V124SA12YGI

Overview

The 71V124SA12YGI is a 1-Mbit (128K x 8) asynchronous static random-access memory manufactured by Renesas Electronics Corporation. It operates on a single 3V to 3.6V power supply and features a parallel interface with a maximum access time of 12 ns. The device is housed in a 32-pin SOJ surface-mount package designed for board-level integration. It supports commercial temperature ranges and utilizes fully static circuitry that requires no clocks or refresh cycles, ensuring reliable data retention during operation.

Feature Summary

• Fully static asynchronous architecture eliminates the need for external clock signals or periodic refresh operations.
• Single 3.3V power supply compatibility simplifies system design and reduces component count.
• LVTTL-compatible inputs and outputs ensure seamless interfacing with standard logic families.

Applications

• High-performance processor secondary cache systems
• Industrial equipment requiring fast data buffering
• Consumer electronics utilizing 3.3V logic standards

Procurement Notes

Verify component authenticity through authorized channels as this part is obsolete. Confirm package integrity and moisture sensitivity handling prior to installation. Cross-reference datasheet revisions to ensure pinout and electrical specifications match current design requirements. Check for RoHS compliance status in official documentation before finalizing procurement.

Selection Notes

Select this component when a 128K x 8 organization is required with 12 ns speed performance. Ensure the design accommodates the 32-SOJ footprint and 3.3V operating voltage. Consider thermal management within the specified commercial temperature range. Evaluate alternative packages if surface-mount constraints differ from the SOJ form factor.

Part Context

This SRAM belongs to the 71V124 series, which provides various speed grades and package options for embedded memory applications. The 71V124SA variant specifically denotes the asynchronous type with 3.3V operation. This family is designed for general-purpose storage where non-volatile retention is not required but fast random access is critical for system throughput.

Replacement Considerations

Officially confirmed substitute: 71V124SA12PHG8. Verify pin compatibility and electrical parameters against the original datasheet before implementation.