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RENR7FA2E1A73CFM#UA0

Renesas Electronics
ARM Microcontrollers - MCU MCU RA2E1 ARM CM23 48MHz 64K/16K QFP64
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Overview

The R7FA2E1A73CFM#UA0 is an entry-line 32-bit microcontroller from the Renesas RA2E1 group, featuring an Arm Cortex-M23 core operating at up to 48MHz. This MCU integrates 64KB of Flash and 16KB of SRAM in a 64-pin LQFP package, balanced for ultra-low power consumption and high peripheral integration. It includes a dedicated Capacitive Sensing Unit (CTSU2) and a wide operating voltage range from 1.6V to 5.5V.

Why Choose This Part

This MCU offers a high pin-to-memory ratio with 53 I/O available in a 64-pin package, providing significant flexibility for complex hardware interfaces. It supports a broad 1.6V to 5.5V supply range and includes 5V tolerant I/O, simplifying integration into mixed-voltage systems without level shifters.

Applications

Capacitive Touch Interfaces
Utilizes the integrated CTSU2 for implementing robust touch buttons, sliders, and wheels in consumer appliances and industrial panels.
Battery-Powered Sensors
Optimized for low-power operation with a 700uA sleep current, making it ideal for remote environmental sensors and IoT end nodes.
Industrial System Control
Serves as a reliable system controller using its 53 I/O pins, hardware CRC, and Event Link Controller for autonomous peripheral interaction.

Key Specifications

Speed 48MHz
RAM Size 16K x 8
Core Size 32-Bit
EEPROM Size 4K x 8
Peripherals AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
Connectivity I2C, SmartCard, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 53
Core Processor ARM Cortex-M23
Package / Case 64-LQFP
Data Converters A/D 13x12b SAR
Oscillator Type Internal
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 105degC (TA)
Supplier Device Package 64-LFQFP (10x10)
Voltage - Supply (Vcc/Vdd) 1.6V ~ 5.5V

Getting Started

Begin development using the Renesas Flexible Software Package (FSP) and the e2 studio IDE or Keil MDK. Hardware evaluation is best performed using the EK-RA2E1 evaluation kit, which provides access to all pins and on-board debugging via SWD.

R7FA2E1A73CFM# Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Peripherals Stock
R7FA2E1A73CFM#UA0 (this part) AES, DMA, LVD, POR.. —
R7FA2E1A73CFM#BA0 (Renesas Electronics Corporation) AES, DMA, LVD, POR.. 852
R7FA2E1A73CFM#AA0 AES, Capacitive To.. 1,452

Also Consider

STM32L053R8T6 STMicroelectronics - Alternative ultra-low-power Cortex-M0+ MCU with similar memory and integrated LCD driver if a display is required.
ATSAMD21G18A-AUT MCHPMicrochip - Popular Cortex-M0+ alternative with larger flash memory and extensive community library support.
R7FA2E1A72DFL#AA0 RENRenesas Electronics - Smaller 48-pin version within the same RA2E1 family for space-constrained designs needing the same core features.