Summary of RA4W1 – 48MHZ BLUETOOTH® 5.0 LOW ENERGY SINGLE CHIP MCU FROM RA4 SERIES
The Renesas RA4W1 is a single-chip MCU with Bluetooth 5.0 Low Energy (2Mbit HT and Long Range) and a 48 MHz Arm Cortex-M4 core. It offers 512 KB flash, 96 KB SRAM, 8 KB DataFlash, rich peripherals (USBFS, CAN 2.0B, SPI/I2C, UART), capacitive touch and segment LCD support, a 2.4 GHz radio, and an integrated Secure Crypto Engine (AES/GHASH/TRNG). Designed for low power IoT applications, it supports FreeRTOS via the Flexible Software Package and targets security, metering, industrial, health, and wearable markets.
Parts used in the RA4W1 Project:
- Renesas RA4W1 microcontroller (48 MHz Arm Cortex-M4)
- 512 kB Flash memory (on-chip)
- 96 kB SRAM (on-chip)
- 8 kB DataFlash (on-chip)
- 7x7 mm QFN 56-pin package
- Capacitive Touch Sensing Unit (on-chip peripheral)
- Segment LCD Controller (on-chip peripheral)
- USBFS 2.0 Full Speed Host/Device (on-chip peripheral)
- CAN 2.0B interface (on-chip peripheral)
- SCI (UART, Simple SPI, Simple I2C) interface (on-chip peripheral)
- SPI/I2C Multimaster Interface (on-chip peripheral)
- 2.4 GHz radio with Bluetooth 5.0 Low Energy (on-chip)
- Secure Crypto Engine (AES128/256, GHASH, TRNG) (on-chip)
- Flexible Software Package (FSP) supporting FreeRTOS (software)
The Renesas RA4W1 is the first Bluetooth 5.0 Low Energy fully compliant with 2Mbit High-Throughput (HT) and Long Range (LR) support in a single chip MCU of Renesas RA4 product series for IoT applications that require a high-performance Arm® Cortex®-M4 core at a very attractive price point.
The RA4W1 is built on a highly efficient low power process and is supported by an open and flexible ecosystem concept, called Flexible Software Package (FSP), using FreeRTOS as base. RA4W1 is geared towards IoT application requiring Security, large embedded RAM and low power consumption.
Key Features
- 48MHz Arm® Cortex®-M4
- 512kB Flash Memory and 96kB SRAM
- 8kB DataFlash to store data as in EEPROM
- 7x7mm QFN 56 pin package.
- Capacitive Touch Sensing Unit
- Segment LCD Controller
- USBFS 2.0 Full Speed (Host/Device) CAN 2.0B
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C Multimaster Interface2.4 GHz radio with Bluetooth 5.0 Low Energy
- Advertising Extension and Long Range support
- Secure Crypto Engine (AES128 / 256, GHASH, TRNG)
Benefits
- Full functionality of Bluetooth 5.0 Low Energy along with the high-performance processing and superior power efficiency.
- High Throughput and Long Range support
- Integrated Secure Crypto Engine with several cryptography accelerators and Key management.
- Large 96kB embedded SRAM suitable for handling communication stacks.
Applications
- Security (Fire Detection, Burglar Detection, Panel control)
- Metering (Electricity, Automated Meter Reading)
- Industry (Robotics, Door Openers, Sewing Machines, Vending machines, UPS)
- Health and Wearables Body Sensors
Read more: RA4W1 – 48MHZ BLUETOOTH® 5.0 LOW ENERGY SINGLE CHIP MCU FROM RA4 SERIES
- What wireless standard does the RA4W1 support?
The RA4W1 supports Bluetooth 5.0 Low Energy with 2Mbit High-Throughput and Long Range support. - What CPU core and speed does the RA4W1 use?
It uses a 48 MHz Arm Cortex-M4 core. - How much on-chip flash and SRAM does the RA4W1 have?
The RA4W1 includes 512 kB flash memory and 96 kB SRAM. - Does the RA4W1 include cryptographic hardware?
Yes, it includes a Secure Crypto Engine with AES128/256, GHASH, and a TRNG. - What peripheral interfaces are available on the RA4W1?
Peripherals include USBFS 2.0 Full Speed, CAN 2.0B, SCI (UART, Simple SPI, Simple I2C), SPI/I2C Multimaster, capacitive touch, and a segment LCD controller. - Is the RA4W1 suitable for low power IoT applications?
Yes, it is built on a low power process and geared toward low power IoT use. - What software support is available for the RA4W1?
It is supported by the Flexible Software Package (FSP) using FreeRTOS as the base. - What package does the RA4W1 come in?
The device is offered in a 7x7 mm QFN 56-pin package. - What applications is the RA4W1 targeted at?
Target applications include security, metering, industrial equipment, health, and wearable body sensors.
