Renesas Electronics RA0L1 32MHz Arm® Cortex®-M23 Microcontrollers

Renesas Electronics RA0L1 32MHz Arm^® Cortex^®-M23 Microcontrollers offer capacitive touch functionality to the RA0 series MCUs. The RA0L1 MCUs have an Arm Cortex-M23 core with low power and peripherals, which are optimized for BOM cost reduction and a simple design.

The RA0L1 features up to 64KB code flash, 16KB SRAM memory, a wide operating voltage range of 1.6V to 5.5V, and a wide operating temperature range of -40°C to 125°C.

Features

Low power process with a 2.7mA active current and Softwire standby current of 0.29uA
Capacitive touch - automatic judgment and MEC
Communication with 5x UART, 5x SPI simplified, 2x IIC, and 6x IIC simplified
Internal high-speed OCO with fast wake up (0.9us), 1% precision, and -40°C to +125°C supported

1.6V to 5.5V operating voltage
T_a = -40°C to +125°C operating temperature range
TRNG, unique ID, and AES library to support security requirements
HW safety features for IEC/UL60730 certification

Applications

Consumer electronics
- Induction heating cooker
- Smart pen
IoT application
- Infusion level monitor using capacitive touch sensing
- Multi-purpose air quality sensor solution

Building/home automation
- Touchless button solution
- Kitchen range hood with 2D touch sensor
Industrial - AC/DC non-isolated capacitive touch wall switch