The RX111 Group has a comprehensive small-capacity ROM/low pin count lineup and built-in USB 2.0


The RX111 Group has a comprehensive small-capacity ROM/low pin count lineup. With USB 2.0 for Battery Charging (BC 2.0), low consumption current, and fast wakeup from standby, these microcontrollers are suitable  for use in computer peripherals, and healthcare and wearable devices. With their three-phase motor control timers, they are also suitable for motor control applications in home appliances and industrial equipment.

Product Status: Mass Production
Family: RX
Series: RX100
Group: RX111


RX111 Block Diagram


Program memory
384 KB Flash memory
64 KB
Data Flash
8 KB
CPU (Bit, Clock, DMA, External Bus etc)
RX (32-bit)
Max. Frequency
32 MHz
Sub-Clock (32.768 kHz)
On-chip Oscillator Freq.
32 MHz
Real-Time Clock (RTC)
Power-On Reset
Low Voltage Detection
DMA Remarks
DTC only
External Interrupt Pins
I/O Ports
16-bit Timers
8 ch
Watchdog Timers
1 ch
PWM Output
3-Phase PWM Output Function
A/D Converters
12-bit x 10 ch
USB Ports
USB Host
USB Peripheral
USB Remarks
USB2.0 Full Speed/Low Speed & Battery Charging Support
3 ch
4 ch
3 ch
4 ch
Operating Conditions
Operating Voltage
1.8 to 3.6 V
Operating Temperature
-40 to 85 ℃ (Ambient Temperature)

You can find an explanation of orderable part numbers here.

Resources for Software and Hardware

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
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Software Design Support

Title Description
CS+ An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.)
e2 studio Renesas eclipse embedded studio, known as e² studio, is a complete development and debug environment based on the popular Eclipse CDT project.
E1 A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.)
Renesas Starter Kit All the development tools you need for MCU evaluation and getting started. Also recommended for training.


Hardware Design Support

Title Description
IBIS/BSDL IBIS standard simulation data is required for high-speed board design and can be used to run simulations to examine and troubleshoot issues such as waveform reflection, ringing, and so on, before producing the actual board. BSDL is a data input format supported by most IEEE 1149.1 (JTAG)-compliant tools. The automatic test pattern generation (ATPG) and automatic test equipment functions of these tools facilitate testing.
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 :
KYOCERA: Click here for RX111 oscillation evaluation result.
Murata Manufacturing: For IC Manufacturer, select Renesas Electronics, and enter R5F5111 into the IC Part Number search box.

For Sub clock resonator :
KYOCERA: Click here for RX111 oscillation evaluation result.
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