Features
- 48MHz Arm Cortex-M4
- 512kB Flash Memory and 96kB SRAM
- 8kB Data Flash to store data as in EEPROM
- 7mm x7mm QFN 56-pin package
- Capacitive touch sensing unit
- Segment LCD controller
- USB 2.0 Full Speed module supporting host and device mode
- CAN 2.0B
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C multimaster interface
- 2.4GHz radio with Bluetooth 5.0 Low Energy
- LE 1M, 2M, Coded PHY, and LE advertising extension
- Secure Crypto Engine (AES128/256, GHASH, TRNG)
Description
The Renesas RA4W1 is the first Bluetooth® 5.0 Low Energy (LE) fully compliant with 2Mbit High-Throughput (HT) and Long Range 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 a base. The RA4W1 MCU has full function support for Bluetooth 5.0 Low Energy long-range and mesh networking, and provides excellent reception performance. RA4W1 is geared towards IoT applications requiring Security, large embedded RAM and low power consumption.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | Arm Cortex-M4 |
| Program Memory (KB) | 512 |
| RAM (KB) | 96 |
| Carrier Type | Bulk (Tray) |
| Supply Voltage (V) | 1.8 - 3.6 |
| I/O Ports | 34 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta = -40 to +85 |
| Operating Freq (Max) (MHz) | 48 |
| Ethernet speed | No |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 1 / 1 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 4 |
| SPI (ch) | 2 |
| I2C (#) | 2 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 0 |
| Wireless | Bluetooth 5.0 |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 16 |
| 32-Bit Timer (ch) | 4 |
| 16-Bit Timer (ch) (#) | 3 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 2 |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 8 |
| 12-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 1 |
| 8-Bit D/A Converter (ch) | 2 |
| Capacitive Touch Sensing Unit (ch) | 11 |
| Image Codec | No |
| Segment LCD Controller | Yes |
| Security & Encryption | Unique ID, TRNG, AES |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QFN | 7 x 7 x 0.9 | 56 | 0.4 |
Application Block Diagrams
 | Smart HVAC Control with Integrated Slave Actuator This slave actuator design for HVAC systems offers low power, secure bi-directional packet data flow, and automatic routing. |
 | 48V Mobility Platform This 48V mobility platform offers versatile, adaptable solutions for diverse electric mobility applications. |
 | Network Gateway for Bluetooth Low Energy Mesh Gateway design with dual-core MPU, Bluetooth LE Mesh, Wi-Fi, local/cloud storage, alarms, and secure communication. |
 | Embedded Programmable Logic Controller (PLC) for Industrial Use Flexible embedded programmable logic controller (PLC) designed to integrate any type of interface for end-application needs. |
Additional 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
- Smart home and remote control toys