Renesas RX231

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The new RX231 Group from Renesas and CANopen technology from PORT GmbH – be prepared for the future

The new RX231 Group has an extreme energy efficiency. To realize this is the best possible combination of a 32-bit CPU core with improved RXv2 DSP / FPU features and a low power energy management is used. Thus, floating-point operations, high-performance digital filtering and other low power techs in environments with low power supply capacity can be executed.

Equipped with the RX231 SD host interface, USB and CAN communication skills, as well as capacitive touch sensor functions which combines high sensitivity with high noise tolerance.

Our RX231 Group is ideally suited for use in applications of home automation, healthcare, industrial, smart meter and generally the Internet of Things (IoT), Industrie 4.0 and a variety of other areas.

Supported is the RX231 Group by PORT GmbH with a CANopen Design Tool and fully integrated CANopen stack.

The following applications are ideally suited for the RX231 family:

  • Healthcare Medical
  • Office automation
  • Smart Meter
  • Building and Home automation
  • Industrial Controller & Sensor
  • Home appliances
Block Diagram - source:
Pin Count / Memory Size Lineup - source:
Code Flash 128 KB (x=5), 256 KB (x=6), 384 KB (x=7), 512 KB (x=8) Remark) R5F231xyDLF : Only support 128 KB and 256 KB flash lineup
Data Flash 8 KB
RAM 32 KB (x=5, 6), 64 KB (x=7, 8) Remark)
R5F231xyR5F231xyDLF : Only support 32 KB RAM lineup
Capacitive Touch Interface Unit 6 channels 10 channels 24 channels
Timers RTC capable of operating on the battery backup power supply - Supported
16-bit timer pulse unit 6 channels
Multi-function timer pulse unit 2 6 channels
Port output enable 2 POE0# toPOE3#, POE8#
8-bit timer 4 channels
Compare match timer 4 channels
Low power timer 1 channel
Watchdog timer Available
Independent watchdog timer Available
Communication Interfaces SD Host Interface y=B : 1 channel, y=A, C : not available
Serial Communication Interface(SCIg, SCIh) 5 channels 6 channels 7 channels
IIC Bus Interface (RIICa) 1 channel 1 channel 1 channel
Serial Peripheral Interface(RSPIa) 1 channel 1 channel 1 channel
USB2.0(Host/Func/OTG) (USBd) 1 channel 1 channel 1 channel
CAN Module(RSCAN) y=A,B : 1 channel, y=C: not available
Serial Sound Interface (SSI) 1 channel 1 channel 1 channel
Analog function 12-bit A/D Converter 8 channels 12 channels 24 channels
12-bit D/A Converter - 2 channels
Temp. Sensor 1 channel 1 channel 1 channel
Comparator 4 channels 4 channels 4 channels
External Bus Interface - Available
Packages LFQFP (7 x 7 mm, 0.5 mm pitch)
WQFN (7 x 7 mm, 0.5 mm pitch)
LQFP (10 x 10 mm, 0.5 mm pitch)
WQFN (9 x 9 mm, 0.5 mm pitch)
WFLGA (5 x 5 mm, 0.5 mm pitch)
LQFP (14 x 14 mm, 0.5 mm pitch)
TFLGA (5.5 x 5.5 mm, 0.5 mm pitch)