7164S25YG8

Overview

The 7164S25YG8 is a 64Kb (8K x 8) asynchronous static random-access memory (SRAM) manufactured by Renesas Electronics. It utilizes BICMOS technology and features a parallel interface with a 25 ns access time. The device operates on a single 5V power supply, ranging from 4.5V to 5.5V, with a maximum supply current of 110 mA. It is housed in a 28-pin Small Outline J-Lead (SOJ) package designed for surface-mount installation. The component supports standard dynamic random-access memory operations without requiring clocks or refresh cycles.

Feature Summary

• Asynchronous operation eliminates the need for external clock signals or periodic refresh cycles.
• BICMOS technology provides high-speed data access within a compact integrated circuit structure.
• Single 5V power supply compatibility simplifies integration into standard logic systems.

Applications

• High-speed buffer memory in embedded control systems
• Cache memory implementation in microprocessor architectures
• Data storage in industrial automation controllers

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level requirements before procurement. Check for valid datasheets matching the specific suffix to ensure pinout and electrical characteristics align with design specifications. Validate substitute availability if original stock is unavailable.

Selection Notes

Select this component for applications requiring fast asynchronous access times and 5V logic compatibility. Ensure the design accommodates the 28-SOJ package dimensions and thermal requirements. Verify that the system voltage remains within the 4.5V to 5.5V range to maintain reliable operation. Consider the end-of-life status when planning long-term production lifecycles.

Part Context

This part belongs to the 7164S series of asynchronous SRAMs, which are designed for general-purpose memory applications. The series offers various access speeds and packaging options to suit different performance and space constraints. The 7164S25 variant specifically targets mid-range speed requirements in 5V environments.

Replacement Considerations

AS7C164A-15JCNTR is documented as a similar alternative. Verify pin compatibility and electrical parameters before substitution.