71V321L55PFI8

Overview

The Renesas Electronics Corporation 71V321L55PFI8 is a dual-port static random access memory (SRAM) integrated circuit. It provides a 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 55 nanoseconds. It operates within a supply voltage range of 3 volts to 3.6 volts and supports surface mount installation in a 64-lead Thin Quad Flat Package (TQFP) measuring 14x14 millimeters. The component is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports.

Applications

• Data buffering in high-speed digital signal processing systems
• Cache memory implementation in embedded controllers
• FIFO buffer applications requiring independent port access

Procurement Notes

Verify the specific suffix 'I8' against official manufacturer documentation to confirm package variant and lead finish specifications. Confirm RoHS compliance status, as historical data indicates potential non-compliance for this series. Validate current availability through authorized distributors, noting that this part number may be discontinued or subject to long lead times.

Selection Notes

Select this component when independent dual-port access is required for 16-kilabit memory configurations. Ensure the design accommodates the 3V to 3.6V supply voltage requirements and the 64-TQFP footprint. Verify that the 55-nanosecond access speed meets the system timing constraints compared to faster alternatives like the 25ns variants.

Part Context

This device belongs to the 71V321L family of asynchronous dual-port SRAMs manufactured by Renesas Electronics. The family offers various access speeds and packaging options, including TQFP and PLCC formats. The 71V321L55PFI8 specifically denotes the 55-nanosecond speed grade within the 16Kb density class.

Replacement Considerations

Official direct replacement part numbers include 71V321L25PFGI8. Verify pinout compatibility and electrical parameter alignment before substitution.