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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What document must I refer the states needed to execute instructions?
For the number of cycles for instructions, please refer to Instructions Converted into Single Micro-Operation and Instructions Converted into Multiple Micro-Operations in the Instructions and Pipeline Processing section in the product's user's manual: hardware.
Jun 20, 2013 -
(RX630, RX63N, RX631, RX210, RX220, X110, RX111) What types of resonator can be connected and what can you recommend?
ceramic resonator or a crystal resonator can be used for the main clock oscillator. Please use a crystal resonator for the sub-clock oscillator. There are no particular resonators that we recommend.
Aug 10, 2012 -
How to register setting method for the compare match timer (CMT)?
That is correct. A compare match signal is generated at the last matched state (at the timing at which the CMCNT counter updates the matched count value). See Timing of Compare Match Interrupt Generation in the user's manual: hardware. If the value set in the compare match timer constant ...
Jun 20, 2013