Renesas RA4L1

The Renesas RA4L1 MCU group features low-power, 32-bit microcontrollers (MCUs) based on the Arm^® Cortex^®-M33 (CM33) core with TrustZone^®, delivering an ideal balance of low voltage operation, low power consumption, and high performance. The RA4L1 offers operation down to 1.6V combined with a low-power standby current of as little as 1.65µA and a multitude of low-power features enabling the user to dynamically optimize power/performance to their application requirements.

These MCUs include low-power features such as segment LCD display drive and an advanced security engine, as well as RTC, ADC, and timers. These MCUs integrate communications interfaces such as CAN FD, USB 2.0 FS without the need of a crystal, I2C/I3C, and low-power UARTs making these devices ideal for many industrial automation, home appliances, smart home, consumer, building/home automation, and medical/healthcare applications.

The RA4L1 comes in a wide variety of standard LQFP and QFN package options as well as a range of space-saving BGA and CSP options and offers support for operating temperatures of -40 °C to 125 °C. The RA4L1 MCUs are fully supported by the Renesas Flexible Software Package and a comprehensive set of hardware and software development tools.

Features

• Low Power Processing
  • Arm Cortex M33 core running up to 80 MHz with TrustZone^®
  • Optimised power modes to dynamically balance performance and energy consumption
  • Fast wake up from low power states for responsive user interaction
     
• Memory Architecture
  • Up to 512 KB dual bank Flash supporting background operation (BGO)
  • 64 KB SRAM with ECC and parity for data integrity
  • Dedicated data flash for EEPROM like storage
     
• Integrated Peripherals
  • Segment LCD controller supporting up to 8 × 48 segments
  • USB 2.0 Full Speed (no external crystal required)
  • CAN FD, SPI, I²C, I³C and low power UART options
  • 12 bit ADC and DAC, RTC and ultra low power timers
     
• Security & Reliability
  • Advanced security engine with TRNG, AES, ECC and SHA
  • Unique device ID and TrustZone^® for secure partitioning
  • Operating temperature range up to  40 °C to +125 °C (package dependent)

Applications

• Smart meters and sensors
• Smart locks, entry panels and access systems
• Home and building automation controls
• Small appliances and consumer devices
• Medical monitoring and wearable adjacent equipment

Block diagram

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