71321LA55PFI8

Memory IC Overview

The Renesas Electronics Corporation 71321LA55PFI8 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 with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 64-pin Thin Quad Flat Package (TQFP) measuring 14x14 millimeters. The component is rated for an industrial operating temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous parallel interface supporting standard logic levels
• Industrial-grade thermal stability for extended environmental operation

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix PFI8 against official datasheets to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status as older variants may not meet current environmental directives. Validate lead times due to potential end-of-life status or limited production runs. Ensure compatibility with existing PCB footprints for the 64-TQFP configuration before procurement.

Memory IC Selection Notes

Select this component when dual-port functionality is required for concurrent master-slave data exchange. Compare access speeds against faster alternatives if system latency is critical. Verify voltage tolerance matches the 4.5V to 5.5V operational window. Consider pinout compatibility with legacy designs utilizing the IDT71321 series.

Memory IC Part Context

This part belongs to the 71321 family of high-speed dual-port SRAMs manufactured by Renesas Electronics. The family typically includes variations with different access speeds and package options. The 71321LA variant specifically denotes the 5-volt logic version with industrial temperature ratings. This series is designed for applications requiring non-blocking data transfer between two independent bus masters.

Memory IC Replacement Considerations

Official upgrade substitutes include the 71321LA25PFGI8, which offers improved 25ns access speed. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.