71V256SA12PZGI

Overview

The Renesas Electronics Corporation 71V256SA12PZGI is a 3.3V CMOS asynchronous static random-access memory (SRAM) organized as 32K x 8 bits, providing a total storage capacity of 256 kbit. It features a parallel interface with a maximum access time of 12 ns and operates within a supply voltage range of 3 V to 3.6 V. The device utilizes fully static circuitry requiring no clocks or refresh cycles. It is housed in a 28-pin TSOP package designed for surface-mount installation and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Fully static asynchronous architecture eliminates the need for clock signals or periodic data refresh operations.
• Low standby power consumption ensures extended battery life when the chip select input is at a CMOS level.
• LVTTL-compatible inputs and outputs allow direct interfacing with standard logic families.
• Single 3.3V power supply simplifies system design and reduces component count.

Applications

• High-performance processor secondary cache systems
• Industrial equipment control units
• Battery-powered portable devices requiring low standby current

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm moisture sensitivity level handling requirements during storage and assembly. Check RoHS compliance documentation against specific project regulations. Validate pinout compatibility with existing PCB footprints before integration.

Selection Notes

Select this component for applications requiring fast asynchronous access without complex timing controllers. Ensure the operating environment stays within the specified industrial temperature limits. Verify that the 3.3V supply rail remains stable within the allowed tolerance. Consider the TSOP-28 package dimensions for adequate board space allocation.

Part Context

This part belongs to the 71V256SA series of high-performance SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options to suit different performance and form factor requirements. It serves as a reliable volatile memory solution for embedded systems needing rapid data retrieval capabilities.

Replacement Considerations

IDT71V256SA12YI is a confirmed substitute part number within the same product family.