R5F52317ADFM
54MHz RXv2 core MCU with 256KB Flash, 64KB RAM, FPU, and advanced analog for industrial control applications.
Product Overview
Description
The R5F52317ADFM is a high-performance RX231 MCU featuring the powerful RXv2 core running at 54MHz with single-precision FPU.
With 256KB Flash and 64KB RAM, it provides excellent resources for industrial control and motor control applications.
The device includes advanced analog peripherals including 12-bit ADC, 12-bit DAC, and comparators, making it ideal for sensor interfacing and control systems.
Product Series
R
Primary Application
Industrial control
Key Features
- RXv2 core with 4.0 CoreMark/MHz
- Single-precision FPU for DSP operations
- 256KB code flash with enhanced endurance
- 64KB SRAM with error detection
- 12-bit ADC at 1 MSPS with PGA
- 12-bit DAC for analog output
- USB 2.0 Full-Speed
- CAN interface
Specifications
| Core | RXv2 with FPU |
|---|---|
| Frequency | 54 MHz |
| Flash Memory | 256 KB |
| RAM | 64 KB |
| GPIO | Up to 145 |
| Package | LQFP-100, LQFP-64 |
Applications
Industrial control
Industrial automation and control
Motor control
Motor drive and control systems
Power supplies
Electronic system design
Sensor systems
Sensor signal conditioning
Medical equipment
Medical electronics
FAE Expert Insights
"The RX231 is an excellent choice for industrial control applications requiring DSP capabilities. The RXv2 core's code efficiency is remarkable - you get more performance per MHz than most Arm Cortex-M4 devices. I've used this MCU in multiple motor control projects where the FPU significantly accelerated control algorithms. The integrated analog peripherals including PGA reduce external component count. The 12-bit DAC is useful for analog setpoint generation. While the 54MHz clock seems modest compared to newer MCUs, the RX core efficiency makes it competitive with higher-clocked alternatives. The device is well-supported by Renesas' Smart Configurator and extensive code libraries."
Excellent code efficiency with integrated analog peripherals
— Michael Park, BeiLuo
Frequently Asked Questions
What makes the RXv2 core efficient?
The RXv2 core uses a modified Harvard architecture with single-cycle execution for most instructions. It achieves 4.0 CoreMark/MHz, competitive with Cortex-M4. The variable-length instruction set (1-7 bytes) optimizes code density. Hardware multiplier and divider accelerate math operations. The FPU executes single-precision operations in parallel with integer instructions. These features make RXv2 efficient for DSP and control applications.
For DSP-intensive applications, the RXv2 with FPU offers excellent performance. Contact us for benchmark comparisons.
How do I configure the analog peripherals?
The RX231 includes flexible analog peripherals configurable through registers or Smart Configurator. The 12-bit ADC supports up to 16 channels with programmable gain amplifier (PGA). The 12-bit DAC provides analog output. Comparators can generate interrupts or trigger ADC conversions. Smart Configurator generates initialization code. Reference voltage can be internal or external. Sample code demonstrates ADC/DAC synchronization for control applications.
Use Smart Configurator to generate analog peripheral initialization. Contact us for analog design guidance.