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Microcontroller with built-in Smart Analog, suitable for sensor and measurement applications


The RL78/G1E microcontroller is based on the RL78/G1A and has built-in analog front-end (AFE) for sensor applications. The AFE circuit contains configurable amplifiers capable of various amplifier configurations, a gain adjustment amplifier, filters, D/A converters, a temperature sensor, which are suitable for processing small sensor signals.


Key Features:

Pin Count 64-pin 80-pin
Part Name R5F10FLx R5F10FMx
CPU RL78 (16 bit)
Multiply-and-divide and multiply-accumulator Built-in
Memory Program Flash 64 KB, 48 KB, 32 KB (Data Flash 4 KB)
SRAM 4 KB, 3 KB, 2 KB
Main system clock

High-speed system


X1 (crystal/ceramic) resonator, external main system clock input (EXCLK)
1 to 20 MHz: VDD = 2.7 to 5.5 V, 1 to 8 MHz: VDD = 1.8 to 2.7 V,
1 to 4 MHz: VDD = 1.6 to 1.8 V
On-chip oscillator

High-speed on-chip

oscillator clock

1 to 32 MHz (VDD = 2.7 to 5.5 V), 1 to 16 MHz (VDD = 2.4 to 5.5 V),
1 to 8 MHz (VDD = 1.8 to 5.5 V), 1 to 4 MHz (VDD = 1.6 to 5.5 V)

Low-speed on-chip

oscillator clock

15 kHz (TYP.)
I/O ports 24 30

16-bit timer /

8-bit timer

8 channels / 2 channels
Watchdog timer 1 channel
12-bit interval timer 1 channel
8 / 12-bit resolution A/D converter 13 channels 17 channels
Serial interfaces 64-pin products
CSI: 1 channel / simplified I2C: 1 channel / UART: 1 channel
UART: 1 channel
CSI: 1 channel / UART (LIN bus supported): 1 channel

80-pin products
CSI: 1 channel / simplified I2C: 1 channel / UART: 1 channel
CSI: 1 channel / simplified I2C: 1 channel / UART: 1 channel
CSI: 2 channels / simplified I2C: 1 channel / UART (LIN bus supported): 1 channel
Sensor interface amplifier Configurable amplifier: 3 channels
Gain adjustment amplifier 1 channel 1 channel (with synchronous detection function)
Low-pass filter 1 channel
High-pass filter - 1 channel
8-bit D/A converter 4 channels
Variable output voltage regulator 1 channel
Reference voltage generator 1 channel
Temperature sensor 1 channel
Power supply voltage VDD = 1.6 to 5.5 V, AVDD = 1.6 to 3.6 V, AVDDn = 3.0 to 5.5 V, DVDD = 3.0 to 5.5 V
Operating temperature -40 to +85 ℃


Pin Count / Memory Size Lineup:

Program Flash


Block Diagram:

RL78/G1E Block Diagram

Below you will find information to support the development of your application.
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.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas products.
Video Watch videos related to this product.


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.)


Hardware Design Support

Title Description
GUI Tools for Evaluation Information on GUI Tools for Evaluation.
Easy Starter Information on Easy Starter .
Smart Analog Easy Starter Analog Design Tool Information on Smart Analog Easy Starter Analog Design Tool.

Smart Analog

Online Simulator

Information on Online Simulator.
Oscillation circuit characteristics The resonators for which the operation is verified and their oscillator constants are shown below.


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