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R5F52316ADFL#30

RENR5F52316ADFL#30

Renesas Electronics Corporation
RXv2 RX231 Microcontroller IC 32-Bit 54MHz 256KB (256K x 8) FLASH 48-LFQFP (7x7)
Active240 in stock

Overview

The R5F52316ADFL#30 is a 32-bit microcontroller from the Renesas RX231 group, featuring the high-performance RXv2 core with a built-in Floating Point Unit (FPU) and DSP instructions. Operating at up to 54MHz, this MCU is specifically designed for power-sensitive applications requiring sophisticated analog integration and capacitive touch sensing capabilities. It includes 256KB of Flash, 32KB of RAM, and 8KB of dedicated data flash for EEPROM-like storage.

Why Choose This Part

This MCU offers a high-efficiency RXv2 core that achieves 4.43 CoreMark/MHz, providing superior processing power compared to standard Cortex-M4 designs at similar clock speeds. Its integrated CTSU supports high-sensitivity touch even through thick overlays or in wet environments, while the hardware-based encryption (TSIP-Lite) and MPU provide essential security for connected devices.

Applications

Capacitive Touch Interfaces
Utilizes the integrated Capacitive Touch Sensing Unit (CTSU) to implement high-sensitivity, noise-tolerant touch buttons, sliders, and wheels on consumer or industrial panels.
Low-Power Sensor Nodes
Leverages multiple low-power modes and the 1.8V to 5.5V operating range for battery-operated IoT devices that require periodic sensor data processing.
Industrial Control Systems
Employs the Event Link Controller (ELC) and hardware safety features like the Clock Frequency Accuracy Measurement Circuit (CAC) for reliable automation control.
Portable Medical Devices
The combination of a hardware FPU and low current consumption (6.5mA at 54MHz) makes it suitable for portable diagnostic equipment requiring digital signal processing.

Key Specifications

Speed 54MHz
RAM Size 32K x 8
Core Size 32-Bit
EEPROM Size 8K x 8
Peripherals Capacitive Touch, DMA, LVD, POR, PWM, WDT
Connectivity I2C, IrDA, SCI, SPI, SSI, USB OTG
Mounting Type Surface Mount
Number of I/O 30
Core Processor RXv2
Package / Case 48-LQFP
Data Converters A/D 8x12b
Oscillator Type Internal
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 48-LFQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

To begin development, use the Renesas e2 studio IDE or IAR Embedded Workbench for RX. The Renesas Envision Kit or RSK (Renesas Starter Kit) for RX231 provides a hardware platform for prototyping, and the Renesas Configurator tool simplifies peripheral initialization and pin mapping.

Also Consider

STM32L431CCT6 STMicroelectronics - Provides an ARM Cortex-M4 alternative with similar memory density and ultra-low power performance for general purpose applications.
R5F52318ADFL#30 RENRenesas Electronics Corporation - Offers a direct migration path with larger 512KB Flash and 64KB RAM if application requirements expand beyond the 256KB/32KB limits.
ATSAMD21G18A-AFT MCHPMicrochip Technology - A common alternative for capacitive touch applications using the Peripheral Touch Controller (PTC) on an ARM Cortex-M0+ architecture.