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RL78/G10

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Product Longevity: 2036

Low Power, Low Pin Count Microcontrollers for General Purpose Applications

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Overview

RL78/G10 microcontrollers realize the industry's lowest level of consumption current (CPU: 46 μA/MHz, standby (STOP): 560 nA). With an on-chip oscillator, A/D converter, comparator, and more, and a 10/16-pin package lineup, they support more compact system size. These low pin count microcontrollers are perfect for small consumer electronics.

RL78/G10 Block Diagram
RL78/G10 Block Diagram
  • CPU: RL78 core, Max. 20MHz
  • Voltage: 2V to 5.5V
  • Package: 64-pin HTFQFP, 10-pin LSSOP, 16-pin SSOP
  • Memory: SRAM Max. 0.5KB, Program Flash Max. 4KB
  • Timer: 16-bit Timer (ch) x 4, 8-bit Timer (ch) x 4, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch
  • PWM: PWM Output x 3
  • Analog function: 10-bit A/D Converter (ch) x 8
  • On-chip Oscillator Freq. (MHz): High-Speed: 20, 10. 5, 2.5 1.25MHz Low-speed: 15kHz
  • Others: Power-On Reset

Documentation

Design & Development

Software Downloads
Type Title Date
PCB Design Files
RL78/G10 Household Gas Alarm Reference Design Files
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Resources

Support Communities

  1. Repurposing a RL78/G10 Pin at Runtime

    Hello, I have a R5F10Y47 (using CC-RL compiler and CS+ for CC). Is it possible for me to repurpose a pin at runtime? For example, pin 12 of the MCU can be used as: analog pin for A/D Converter, rise/fall edge detection, and GPIO. Is ...

    Jan 22, 2025
  2. RL78/G10 serial programming by using an external device (UART communication)

    Hello, Does anybody know details of programming protocol of RL78/G10 devices? Hardware manual tells only that there are two commands: 'CRC check' and 'Write after Erase'. But gives no clue, how to send them. The only thing I can say, that RL78/G10 and RL78/G12 ...

    Sep 5, 2014
  3. E2 lite , RL78/G10: R5F10Y16, 10 PIN MCU target board, Debugging

    Hi  can i able to program my RL78/G10 MCU Target board : R5F10Y16-TB directly from E2 Lite emulator using CS+ IDE ? Also, can i able to debug it ?  Actually currently i am not able to do so. Kindly advise.   Regards Harsh Sharma

    Feb 19, 2018
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FAQs

  1. RL78 Family: Reset signal generated by the power-on reset circuit (POR)

    ... reset signal. Suitable Products RL78/D1A, RL78/F12, RL78/F13, RL78/F14, RL78/F15, RL78/F23, RL78/F24, RL78/G10, RL78/G11, RL78/G12, RL78/G13, RL78/G13A, RL78/G14, RL78/G15, RL78/G16, RL78 ...

    Apr 28, 2025
  2. Reference Materials for Migration from 78K0/Kx2 to RL78

    We have the following reference materials available.  - How to replace a program for 78K0 with a program for RL78　　Replacement Guide for 78K0 Family to RL78 Family (CcnvCA78K0)         Software for converting a C source file for CA78K0 and CA78K0R to a C source file for CC-RL　　　　CcnvCA78K0 C Source ...

    Dec 21, 2020
  3. Compatibility of RL78/G15 with existing products

    RL78/G15 (10-pin, 16-pin) has pin compatibility with RL78/G10 (10-pin, 16-pin). The same functions are assigned to the same pins. RL78/G15 (20-pin) is essentially pin compatible with RL78/G12 (20-pin), except for three pins, namely, ANI, TOOLTxD, and ...

    Jan 12, 2023
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