Overview
Description
RX110 Group microcontrollers have the simplest lineup of the RX100 Series. They have a small-capacity, low pin count lineup from 8 KB/8 KB to 128 KB/16 KB ROM/RAM, and 36 to 64 pins. A 12-bit A/D converter, timer, serial interface, and more are built into a small 4 × 4 mm package. The RX110 is suitable for sensor hub and other applications where small size and processing performance are demanded.
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
Support Communities
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Getting stuck waiting for main clock oscillator and wait counter overflow.
Hey guys, I am using a RX110 series R5F51105ADFL series microcontroller along with e2 studio version 4.0( I know it's old but, it's what I have to work with). After generating the mock up code using the code generator and running it on the hardware, it seems ...
Aug 27, 2020 -
Difference between the reset sources for RX100 family
Hi there, For RX100 family there are several reset sources like RES# pin, soft reset, LVD, IWDT etc. I would like to know what differs between those reset sources? eg: pin reset and soft reset results in same condition? Thanks.
Aug 1, 2016 -
RX111 - RTCa
Hi, I'm looking for a RX110 or RX111 - RTCa example. I'd like it run in binary mode. TX
Feb 23, 2022
FAQs
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The sub-clock does not operate.
Please refer to the sub-clock setting procedure in the "Initial Setting" application note for each Group.
Aug 10, 2012 -
Failure to Capture Input During Cascade Connections
Please check the following items: (1) Input capture setting enabled both for MTU1 and MTU2 The input capture for MTU1 is taken as the input capture for MTU2 internally and vice versa. Therefore, MTU1 and MTU2 should be set at the same value in the timer I/O control ...
Jun 8, 2017 -
How to tally the number of instruction execution states accurately?
The instruction processing time of the CPU varies according to the pipeline processing, so the number of execution states cannot be calculated accurately. The approximate instruction processing time can be calculated. Please refer to the "Pipeline" section in the "CPU" chapter of the hardware manual.
Jun 20, 2013