71V256SA12PZG

Overview

The 71V256SA12PZG is a 3.3V CMOS asynchronous static random-access memory manufactured by Renesas Electronics. It provides a storage capacity of 256 kbit, organized as 32k x 8 bits. The device features a parallel interface with a maximum access time of 12 ns. It operates within a supply voltage range of 3 V to 3.6 V and draws a maximum power supply current of 90 mA. The component supports surface-mount installation in a 28-pin TSOP package. It functions reliably across a commercial temperature range from 0°C to +70°C.

Feature Summary

• Fully static asynchronous circuitry eliminates the need for external clocks or periodic refresh cycles during operation.
• Low standby power characteristics extend battery life when the chip select input is held at a CMOS level.
• Inputs and outputs are compatible with LVTTL logic levels for straightforward system integration.

Applications

• High-performance processor secondary cache
• General-purpose data storage in embedded systems
• Buffering applications requiring fast asynchronous access

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm RoHS compliance details via official documentation. Check moisture sensitivity level requirements for handling and storage conditions prior to assembly. Ensure compatibility with existing PCB footprints and voltage levels.

Selection Notes

Select this part for designs requiring 32k x 8 organization with 12 ns access speed. Consider the 28-pin TSOP package for surface-mount constraints. Evaluate thermal management for the 0°C to +70°C operating range. Compare against other 71V256SA variants if different access times or industrial temperature grades are needed.

Part Context

This component belongs to the 71V256SA series of 3.3V asynchronous SRAMs. It shares architectural similarities with other members like the 71V256SA10 and 71V256SA15, differing primarily in access speed specifications. The series is designed for low-power, high-speed memory applications in consumer and industrial electronics.

Replacement Considerations

Public confirmed substitute part numbers include IDT71V256SA12PZG. Verify pinout and electrical parameters match before substitution.