71V321S25PFI

Overview

The 71V321S25PFI 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 rated for commercial operating temperatures ranging from 0°C to +70°C.

Feature Summary

• Supports simultaneous independent read and write operations at both Port A and Port B without bus contention
• Provides high-speed asynchronous data transfer with a 25 ns access time
• Operates on a single 3.3V power supply compatible with standard logic levels

Applications

• High-performance digital signal processing systems requiring low-latency buffering
• Network equipment packet buffering and traffic management
• Industrial control systems needing reliable volatile data storage

Procurement Notes

Verify the specific suffix PFI against official Renesas documentation to confirm the 64-TQFP package and commercial temperature range. Confirm RoHS compliance status as older batches may not meet current environmental directives. Check for End-of-Life notices or production change notifications that may affect long-term availability or pin compatibility.

Selection Notes

Select this component when dual-port architecture is required for concurrent processor access. Ensure the design accommodates the 64-lead TQFP footprint and thermal dissipation requirements. Verify that the 25 ns speed meets system timing constraints and that the 3V to 3.6V supply rail aligns with the target platform's power distribution network.

Part Context

This part belongs to the 71V321L/S series of dual-port SRAMs. It shares functional similarities with other variants in the family but differs in package type and speed grade. The S-series typically denotes specific performance characteristics distinct from the L-series counterparts.

Replacement Considerations

Direct replacements include 71V321L25PFGI and 71V321L25PFG8. Verify package dimensions and electrical specifications before substitution.