Skip to main content

Overview

Description

The RX140 microcontrollers in the RX100 series combine the highest processing performance and low supply current. This makes them suitable for a wide range of applications such as home appliances, industrial applications and building automation. The RX140 with an RXv2 core achieves a 48MHz maximum operating frequency, with about twice the performance of the previous RX130 operating at 32MHz. In addition, power consumption is reduced by more than 30% compared to the RX130 with 56μA/MHz during CPU operation and 0.25μA in standby mode. A new low power mode (snooze mode) also enables an additional low power consumption mode for applications that require intermittent operation. In addition, the latest capacitive touch sensor is equipped with third-generation touch IP that dramatically improves noise immunity and increases water resistance, so it can be used in a wider range of applications than ever before, including environments where noise or wet surroundings would affect accuracy. Peripheral functions have also been expanded, including CAN functionality that enables real-time communication, an AES encryption accelerator to reduce security threats such as data eavesdropping and tampering, and a true random number generator.

Features

  • CPU RXv2 core (48MHz maximum operating frequency), single-precision FPU
  • Low power consumption (56μA/MHz during CPU operation, 0.25μA in standby mode)
  • Up to 256KB flash memory and 64KB SRAM
  • 8KB data flash that can store data just like an EEPROM
  • High-speed on-chip oscillator with +/- 1.0% accuracy
  • 1.8V to 5.5V wide operating voltage range
  • Updated Capacitive Touch Sensing Unit
  • SCI (UART, Simple SPI, Simple I2C)
  • SPI/I2C Multi-Master Interface
  • CAN Interface
  • 12-bit A/D converter, 8-bit D/A converter, temperature sensor
  • 32-bit general-purpose PWM timer, 16-bit general-purpose PWM timer, low power asynchronous general-purpose timer
  • Real-Time Clock
  • Security (AES encryption, true random number generator)
  • Enhanced Safety functionality
  • Pin and peripheral compatibility with RX130
  • Diverse package lineup from 32 to 80-pin, including QFP and QFN options

Comparison

Applications

  • Home appliances
  • Industrial
  • Building automation
  • Home automation
  • Consumer

Documentation

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
RI600V4 Real-time OS for RX Family
μITRON4.0 Specification real-time OS for RX Family [Required IDE : e2 studio, CS+] * RI600V4 is not generally promoted to U.S. and European customers. Customers in U.S. and Europe who are interested in RI600V4 are requested to contact our regional marketing departments for details.
ITRON OS Renesas
RI600PX Real-time OS for RX Family
μITRON4.0/PX Specification real-time OS for RX Family [Required IDE : CS+] * RI600PX is not generally promoted to U.S. and European customers. Customers in U.S. and Europe who are interested in RI600PX are requested to contact our regional marketing departments for details.
ITRON OS Renesas
RX Driver Package
Device driver set for the RX Family (including major middleware). Target devices : RX130, RX23W, RX231, RX24U, RX64M, RX65N, RX66T, RX71M, RX72M etc.
Software Package Renesas
C/C++ Compiler Package for RX Family [CC-RX]
C/C++ Compiler Package for RX Family [IDE: CS+, e² studio, High-performance Embedded Workshop]
Compiler/Assembler Renesas
e² studio Partner OS Aware Debugging
Standard debugger in e2 studio for supporting task level debugging of real-time OS applications.
Plug-in, OS Aware Debugging, Etc. Renesas
QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors
In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
Solution Toolkit Renesas
E2 emulator [RTE0T00020KCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
Emulator Renesas
E2 emulator Lite [RTE0T0002LKCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
Emulator Renesas
CS+ Partner OS Aware Debugging Plug-in
Features for task level debugging of real-time OS applications [Plugin for Renesas IDE CS+] [Support MCU/MPU: RX, RL78]
Plug-in, OS Aware Debugging, Etc. Renesas
CS+
Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] (Note: CS+ is not generally promoted to U.S. and European customers.) (Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
IDE and Coding Tool Renesas
E20 emulator [R0E000200KCT00]
On-chip debugging emulator. Also available as a flash memory programmer. For RX600 or RX700 Series MCU, trace functions and Real-time RAM monitor functions available. For MCUs other than RX600 or RX700, the available debugging function corresponds to that of E2 Emulator Lite. [Support MCU/MPU: RX, RL78, RH850, V850, 78K0R, 78K0, R8C]
Emulator Renesas
PG-FP6
Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]
Programmer (Unit/SW) Renesas
Renesas Flash Programmer (Programming GUI)
Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
Programmer (Unit/SW) Renesas
External Flash Definition Editor
Utility for downloading data to external flash memory (for emulators)
Other Emulators and Options Renesas
DSP Library for RX Family
Software library that implements numeric operation function used in DSP with general purpose MCU
DSP / FFT Renesas
Sensor Software Modules for Renesas MCU Platforms
Middleware (FIT module and FSP module) and sample software packages that enable control and data acquisition for Renesas sensor products.
Sensor Renesas
Crypto Library
Robust encode library to ensure security for all types of system developments
Security / Crypto Renesas
RX Smart Configurator
RX Smart Configurator is a utility for combining software in ways that meet your needs. It simplifies the embedding of Renesas drivers in your systems through supports for importing middleware and drivers and configuring pins.
Solution Toolkit Renesas
e² studio - Information for the RX Family
Eclipse-based Renesas integrated development environment (IDE).
IDE and Coding Tool Renesas
QE for Display: Development Assistance Tool for Display Applications
This development assistance tool supports the development of embedded systems which use the LCD display functions of display controllers from Renesas. [Plugin for Renesas IDE "e² studio"] [Standalone Version] [Support MCU/MPU:RZ, RX, RA]
Solution Toolkit Renesas
Renesas IAR Embedded Workbench Device-Support-Packages
Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
IDE and Coding Tool Renesas
SPI/QSPI Serial Flash Memory, QSPI Serial Phase Change Memory Driver
Device Driver for SPI and QSPI Serial Flash Memory and QSPI Serial Phase Change Memory
Serial Memory Renesas
Reality AI Utilities
Plug-in module for Renesas e² studio
Solution Toolkit Renesas
I2C Serial EEPROM Driver
Device Drivers for I2C Bus Serial EEPROM R1EX24xxx Series, R1EV24xxx Series and HN58X24xxx Series
Serial Memory Renesas
SPI Serial EEPROM Driver
Device Drivers for SPI Bus Serial EEPROM R1EX25xxx Series and HN58X25xxx Series
Serial Memory Renesas
25 items

Software Downloads

Type Title Date
PCB Design Files Log in to Download ZIP 508 KB
1 item

Sample Code

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Videos & Training

High Performance and Power Efficient RX140

More than 30 percent better power efficiency and twice the processing performance of RX130 group MCUs. Embedded with advanced capacitive touch IP and security features, RX140 MCUs enable your system to be smarter. Learn more about the key benefits in the video.

News & Blog Posts

Introduction of Noise Countermeasure Guide for Capacitive Touch Sensors of Renesas MCU Blog Post Nov 21, 2023
Introducing An Easy Tool for Touch Development Even with Partner IDE Platforms Blog Post Oct 20, 2023
Introducing the Handbook that Provides a Comprehensive Overview of RX140! Blog Post Jul 20, 2023
Evolve Your HMI Effortlessly with RX Microcontrollers and Serial LCD! Blog Post Jun 12, 2023
Achieve power consumption reduction and cost optimization in CAN-based applications with the RX140! Blog Post May 25, 2023
Say Goodbye to Hardware Manual Confusion with Our Comprehensive Guide! Blog Post Apr 6, 2023
Upgrade MCUs with the Latest Industry-leading 32-bit RX Family MCUs! RX Portfolio is Expanding Blog Post Mar 20, 2023
Tips for Selecting Low Power Consumption Modes on the RX MCU Blog Post Feb 27, 2023
RX Family Software – The Past and the Future - #6 Blog Post Jan 23, 2023
Introducing Waterproof Capacitance Solution for Self-Capacitive Touch Keys in Wet Area Blog Post Dec 5, 2022
Introducing Smart Wakeup Solution for Low Power Capacitive Touch Sensing Application Blog Post Nov 15, 2022
Infusion Level Monitor Using Capacitive Touch Sensing Blog Post Sep 16, 2022
RX Family Software – The Past and the Future - #5 Blog Post Sep 1, 2022
Target Board for RX Family: where your creativity comes to life Blog Post Jul 22, 2022
RX Family Software – The Past and the Future - #4 Blog Post Jul 11, 2022
Bringing DSPs Closer to You! Realizing Digital Filters with the Latest Low-End RX140 Microcontroller of the RX Family! Blog Post Jun 17, 2022
QE for Capacitive Touch Supports the Development of Gesture Applications using AI. Let’s check its ability! Blog Post May 17, 2022
Realizing Low Power Consumption of the Capacitive Touch Sensors with RX140! Blog Post Apr 28, 2022
Design Guide for RX MCU Board Wiring Pattern Blog Post Apr 19, 2022
RX Family Software – The Past and the Future - #3 Blog Post Apr 5, 2022
Experiencing the Initial Evaluation of the Capacitive Touch Sensor Using the Latest 32-Bit RX140 MCU Blog Post Mar 22, 2022
Realizing OTA Function of a Secondary MCU with the RX MCU – FreeRTOS Version Blog Post Mar 9, 2022
Supporting a Smooth Start of Your Development with RX by Video! Blog Post Mar 4, 2022
RX Family Software – The Past and the Future - #1 Blog Post Jan 27, 2022
Realizing a Low-Cost Water Level Measurement Solution Using the RX130’s Capacitive Touch Key Blog Post Dec 10, 2021
To Seamlessly Switch to a 32-Bit RX Family MCU Blog Post Dec 1, 2021
Introducing the Smart Configurator Board Support Feature for Quick Project Setup Blog Post Oct 6, 2021
Improve UX/UI with RX140 MCU Equipped with A New Generation of Capacitive Touch Sensor Blog Post Sep 29, 2021
Interview with RX MCU Family User, HITACHI Solutions Technology Blog Post Sep 28, 2021
How Renesas Approaches Functional Safety over EtherCAT (FSoE) Blog Post Sep 17, 2021
DSP Experience with RX Family MCU! Visualizing DSP Behavior with Free Sample Program! Blog Post Aug 6, 2021
Introducing the RX Family Firmware Update Middleware that Can Easily Realize FOTA (Firmware Update Over-The-Air) Implementation Blog Post Aug 5, 2021
Do You Want to Develop a Touchless Button? Introducing a Solution Using a General-Purpose MCU Blog Post Jul 16, 2021
Introducing the RX MCU Product Longevity Program (PLP) that Goes Beyond 15 years of Support! Blog Post Jul 12, 2021
Let’s Get Started with RX MCU Software Development! First Step is to Start with e² studio. Blog Post Jul 1, 2021
Time flies in a flash of light! Renesas RXv2 Core has exceeded a CoreMark of 5.0. How does it achieve this result? Blog Post Apr 27, 2021

Resonator Information

Please search for your resonator on its manufacturer's site linked below. If you require optimal oscillation circuit constants for your particular system, please ask the manufacturer of the oscillator.

For main clock resonator/subclock resonator:
NIHON DEMPA KOGYO: Please see IC Matching Information in the RX140 column.
KYOCERAClick here for RX140 oscillation evaluation result.
Murata Manufacturing: Please enter "RX140" or "R5F5140" into the IC Part Number search box.
Seiko Instruments: Please see the matching data in the RX140 column.

For information on resonators, please also refer to the following application note.
Design Guide for Main Clock Circuits and Sub-Clock Circuits Rev.1.01 (PDF | English, 日本語)