R5F521A8BDFP#10

Microcontrollers Overview

The R5F521A8BDFP#10 is a 32-bit microcontroller from the Renesas RX21A series, featuring an RX core operating at up to 50 MHz. It integrates 512 KB of flash memory and 64 KB of RAM within a 100-pin LFQFP package (14x14 mm). The device supports a supply voltage range of 1.62 V to 5.5 V and operates between -40°C and +85°C. Key peripherals include DMA, LVD, POR, PWM, WDT, EBI/EMI, I2C, SCI, and SPI interfaces.

Microcontrollers Feature Summary

• Integrates high-speed 32-bit RX core with 50 MHz maximum clock frequency
• Provides substantial non-volatile storage with 512 KB flash and 64 KB RAM
• Supports versatile communication protocols including I2C, SCI, and SPI
• Includes external bus interface for expanded peripheral connectivity

Microcontrollers Applications

• Industrial control systems requiring robust processing capabilities
• Automotive instrumentation and embedded applications
• Consumer electronics utilizing multiple serial communication interfaces
• General-purpose embedded controllers needing external memory expansion

Microcontrollers Procurement Notes

Verify component status as NRND (Not Recommended for New Designs) before procurement planning. Confirm moisture sensitivity level and reflow soldering profiles against current manufacturing standards. Ensure compatibility with existing PCB footprints for the 100-LFQFP package. Review latest datasheet revisions for any pinout or electrical characteristic updates prior to final design approval.

Microcontrollers Selection Notes

Select this model when 512 KB program storage and 64 KB data memory are required within a 100-pin form factor. Consider the RX21A series architecture for efficient code execution in resource-constrained environments. Evaluate peripheral needs such as DMA and external bus interfaces to ensure functional alignment. Compare against newer RX series devices if long-term supply assurance is critical for the project lifecycle.

Microcontrollers Part Context

This component belongs to the RX21A group of 32-bit microcontrollers designed for general-purpose applications. It utilizes the RXv1 instruction set architecture for optimized performance. The part number suffix #10 typically denotes specific packaging or tape-and-reel configurations, though official documentation should be consulted for precise handling requirements. It serves as a mid-range solution within the broader RX family ecosystem.

Microcontrollers Replacement Considerations

Officially confirmed substitute part numbers are not available in public documentation. As the component is marked NRND, engineers should evaluate next-generation RX series alternatives for new designs. Verify pin-to-pin compatibility and software migration paths when considering legacy replacements.