71V256S10YG8

Overview

The 71V256S10YG8 is a 3.3V CMOS Asynchronous Static Random Access Memory (SRAM) organized as 32K x 8, providing a total storage capacity of 256 Kbit. It features a maximum access time of 10 ns and operates within a supply voltage range of 3.0 V to 3.6 V. The device utilizes fully static asynchronous circuitry, eliminating the need for external clocks or refresh cycles. It supports low-power standby modes with consumption guaranteed below 6.6 mW under full standby conditions. The component is housed in a 28-pin SOJ package and is rated for commercial temperature operation from 0°C to +70°C.

Feature Summary

• Fully static asynchronous architecture requiring no clock signals or periodic refresh operations for data retention.
• Low-power standby mode capability designed to extend battery life in portable applications.
• LVTTL-compatible input and output interfaces ensuring direct compatibility with standard logic levels.

Applications

• High-performance processor secondary cache systems
• Battery-powered devices requiring extended operational life through low standby power
• Industrial and commercial embedded memory solutions

Procurement Notes

Verify component status prior to procurement as this specific part number may be obsolete or end-of-life. Confirm that the 28-pin SOJ package and 10 ns speed grade align with existing design constraints. Ensure replacement strategies are established if discontinuation is confirmed by the manufacturer. Check for moisture sensitivity level requirements during handling and storage.

Selection Notes

Select this component when a 32K x 8 organization is required with 10 ns access speeds. It is suitable for designs needing LVTTL compatibility and single 3.3V supply operation. Consider alternative packages such as TSOP if surface-mount density differs from SOJ requirements. Verify temperature range suitability for the intended commercial environment.

Part Context

This SRAM belongs to the Renesas 71V256SA series, which offers various speed grades and package options including TSOP and SOJ. The series is characterized by its low standby current and compatibility with 3.3V logic systems. It serves as a non-volatile-like solution for volatile memory needs without the complexity of synchronous control signals.

Replacement Considerations

Check for other speed grades within the 71V256SA family, such as 12 ns or 15 ns variants, if timing margins allow. Verify pinout compatibility with alternative manufacturers offering 32K x 8 asynchronous SRAMs in 28-pin packages.