71V321S25PF

Overview

The 71V321S25PF is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device features asynchronous parallel interface operation with a maximum access time of 25 nanoseconds. It operates within a supply voltage range of 3.0 volts to 3.6 volts and is housed in a 64-pin Thin Quad Flat Package (TQFP) measuring 14x14 millimeters. The component supports surface-mount installation and is designed for industrial temperature ranges.

Feature Summary

• Supports simultaneous independent read/write operations at two separate ports
• Asynchronous parallel data interface for flexible system integration
• Single power supply operation compatible with standard logic levels

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• Data acquisition systems requiring low-latency storage

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations such as PF8 or J indicate specific package types and compliance statuses. Confirm RoHS compliance requirements, as older manufacturing lots may not meet current environmental standards. Check for obsolescence notices from Renesas, as this series has been subject to production lifecycle changes. Ensure moisture sensitivity level handling procedures are followed during assembly.

Selection Notes

Select this component when dual-port functionality is required for concurrent master-slave data exchange. Compare access times against system clock speeds to ensure timing margins are met. Evaluate package dimensions against PCB layout constraints, specifically the 64-TQFP footprint. Consider thermal dissipation characteristics if operating near maximum ambient temperature limits.

Part Context

This part belongs to the 71V321L/S family of dual-port SRAMs, which offers varying speed grades and package options. The 'S' designation typically indicates specific speed and package variants within the broader product line. These devices are commonly used in applications requiring high-bandwidth memory sharing between multiple controllers without bus contention.

Replacement Considerations

Official upgrade alternatives include the 71V321L25PFG8 for enhanced compliance and availability. Verify pin compatibility and electrical specifications before substituting. Cross-reference with IDT-branded equivalents if sourcing from legacy distributors.