71V256SA15YG8

Overview

The Renesas Electronics Corporation 71V256SA15YG8 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 parallel interface with a maximum access time of 15 ns. The device operates within a supply voltage range of 3.0 V to 3.6 V and supports surface mount installation in a 28-SOJ package. It is designed for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Fully static asynchronous circuitry eliminates the need for external clocks or periodic refresh cycles during operation.
• Very low power characteristics in standby mode contribute to extended battery life in portable applications.
• Supports full standby mode with guaranteed low power consumption when chip select is at CMOS level.

Applications

• Portable electronic devices requiring low-power memory solutions
• Industrial control systems operating in wide temperature environments
• Embedded systems utilizing asynchronous parallel data interfaces

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance specifications against specific manufacturing dates, as legacy stock may vary. Ensure compatibility with existing PCB footprints for 28-SOJ packages before procurement. Review datasheet revisions for any pinout or electrical parameter updates.

Selection Notes

Select this component for designs requiring 3.3V logic compatibility and fast 15 ns access times. Consider the 28-SOJ package constraints for board space. Evaluate thermal management needs for industrial temperature ranges. Compare power consumption metrics against newer alternatives if battery efficiency is critical.

Part Context

This part belongs to the 71V256SA series of 3.3V SRAMs manufactured by Renesas Electronics. It is a legacy product often replaced by newer generations in the same family. The series is known for reliable asynchronous performance in embedded memory applications.

Replacement Considerations

Check for direct substitutes like IDT71V256SA15YGI8. Verify pin compatibility and electrical specifications before substitution.

FAQ

What is the organization of the 71V256SA15YG8 memory?

The memory is organized as 32K words by 8 bits, totaling 256 Kbit.

Does the 71V256SA15YG8 require clock signals for operation?

No, it uses fully static asynchronous circuitry and does not require clocks or refreshes.