71V321LA45PF8

Overview

The Renesas 71V321LA45PF8 is a high-performance static RAM (SRAM) device featuring a 32K x 1 configuration with an additional 256 x 9 parity bits for error detection. It operates at a maximum clock frequency of 45 MHz and utilizes a low-voltage CMOS technology, supporting a supply voltage range typically between 2.7V and 3.6V. The component employs a synchronous interface with separate read and write clocks, enabling pipelined operations for improved throughput. Packaged in a 48-pin Thin Small Outline Package (TSOP-II), it offers compact board space utilization while maintaining reliable data integrity through integrated parity checking mechanisms suitable for embedded memory applications.

Feature Summary

• Synchronous operation with independent read and write clock inputs for flexible system integration
• Integrated parity generation and checking circuitry for enhanced data reliability
• Low-power CMOS construction optimized for battery-operated and portable devices
• Pipelined architecture allowing concurrent command processing to maximize bandwidth

Applications

• Embedded systems requiring fast local memory access
• Portable consumer electronics with power constraints
• Industrial control units needing reliable data storage
• Telecommunications equipment utilizing synchronous interfaces

Procurement Notes

Verify the specific suffix 'PF8' against official Renesas documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 48-pin TSOP-II form factor. Cross-reference lead times and availability directly with authorized distributors as these fluctuate based on production schedules. Confirm that the operating voltage requirements align with your system's power rails before procurement.

Selection Notes

Choose this component when synchronous SRAM performance is required alongside parity protection for data integrity. Consider the 45 MHz speed limit and 32K depth relative to system memory needs. Evaluate the TSOP-II package dimensions against available board real estate. Compare power consumption characteristics with alternative asynchronous or wider-width SRAMs if bandwidth requirements differ significantly from this single-bit wide configuration.

Part Context

This part belongs to Renesas' 71V321L series of synchronous SRAMs, designed for general-purpose memory applications. The series typically includes variants with different speeds and package options. The 'LA' designation often indicates specific logic level or voltage characteristics within the family. Understanding the broader series helps in identifying compatible pinouts and electrical specifications across similar components.

Replacement Considerations

Check for direct cross-references from other manufacturers offering 32Kx9+parity synchronous SRAMs in TSOP-II packages. Verify that any substitute matches the 45 MHz speed grade and voltage range exactly. Ensure pin compatibility and timing parameters are identical to avoid redesigning the host circuit. Consult official replacement guides from Renesas or authorized distributors for validated alternatives.