Even though the RL78/G1N microcontroller has a small pin-count 20-pin package, it is an 8-bit general-purpose microcontroller equipped with large current output terminals for driving LEDs. It allows direct drive of 8-segment 6-digit high brightness LEDs. It is suitable for small appliances, simple lighting fixtures and LED displays for portable batteries, etc.

Features

  • CPU: RL78 core, Max. 20MHz
  • Voltage: 2.0V to 5.5V
  • Package: 20-pin TSSOP
  • Memory: SRAM Max. 8KB, Program Flash Max. 1KB
  • Timer: 16-bit Timer (ch) x 4, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch
  • PWM Output: 3
  • Analog function: 8/10-bit A/D Converter (ch) x 8
  • On-chip Oscillator Freq. (MHz): 1.25MHz-20MHz (VDD=2.7V-5.5V), 1.25MHz-5MHz (VDD=2.0V *Note)-5.5V)
    *Note: Use with a voltage range of 2.25V to 5.5V because it includes detection voltage (VSPOR) for the selectable power-on-reset (SPOR) circuit.
  • Others: Clock/buzzer output, Power-on-reset, On-chip debugger interface

Applications

  • Home Appliances
  • Office
  • Home
 

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RL78/G1M, G1N Data Sheet Datasheet PDF 225 KB
User Guides & Manuals
RL78/G1M, G1N User's Manual Hardware 日本語 Manual PDF 3.00 MB
RTE0T00020KCAC0000J User's Manual 日本語 Manual PDF 309 KB
RTE0T000020KCA10000R User's Manual (20-Pin (1.27-mm Pitch) to 20-Pin (2.54-mm Pitch) Connector Conversion Adapter for the E2 Manual PDF 647 KB
RTE0T00020KCA00000R User's Manual (20-Pin to 14-Pin Conversion Adapter for the E2 emulator) Manual PDF 319 KB
E2 Emulator RTE0T00020KCE00000R User's Manual 日本語 Manual PDF 903 KB
e² studio Integrated Development Environment User's Manual: Getting Started Guide 日本語 Manual PDF 3.04 MB
RL78 Software Migration Guide CS+ to e2 studio Migration (CC-RL) 日本語 Guide PDF 3.23 MB
Application Notes & White Papers
RL78/G14, H8/36109 Migration Guide from H8 to RL78: ROM (Flash memory) 日本語 Application Note PDF 283 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Power supply circuit 日本語 Application Note PDF 224 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Band-Gap Regulator, Power-On Reset & Low-Voltage Detection Circuits 日本語 Application Note PDF 264 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Watchdog Timer 日本語 Application Note PDF 248 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Realtime Clock (RTC) 日本語 Application Note PDF 380 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Power-Down Modes 日本語 Application Note PDF 501 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Clock Pulse Generators 日本語 Application Note PDF 383 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: I/O Ports 日本語 Application Note PDF 216 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Exception Handling 日本語 Application Note PDF 378 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: CPU architecture 日本語 Application Note PDF 290 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: A/D Converter 日本語 Application Note PDF 419 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: IIC2 日本語 Application Note PDF 261 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: SCI3 日本語 Application Note PDF 439 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: 14-Bit PWM 日本語 Application Note PDF 304 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer V 日本語 Application Note PDF 481 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer B1 日本語 Application Note PDF 323 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer RC 日本語 Application Note PDF 413 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer RD 日本語 Application Note PDF 551 KB
- Onboard LED Flashing Control (Arduino API) 日本語 Application Note PDF 620 KB
RL78/G1N LED electronic safebox Application Notes Application Note PDF 1.13 MB
Onboard LED Flashing Control (Arduino API) 日本語 Application Note PDF 514 KB
- Onboard LED Flashing Control (Arduino API) 日本語 Application Note PDF 514 KB
PG-FP6 Usage of Communications Commands 日本語 Application Note PDF 369 KB
RL78/G10 Automatic Hand Soap Dispenser Application Notes 日本語 Application Note PDF 681 KB
- RL78/G10 Automatic Hand Soap Dispenser Application Notes 日本語 Application Note PDF 681 KB
RL78/G10 Hand dryer Application Notes 日本語 Application Note PDF 496 KB
- RL78/G10 Hand dryer Application Notes 日本語 Application Note PDF 496 KB
RL78/G10 Fall Detection Alarm for Walking Stick Using Three-Axis Acceleration Sensor 日本語 Application Note PDF 874 KB
- RL78/G10 Fall Detection Alarm for Walking Stick Using Three-Axis Acceleration Sensor 日本語 Application Note PDF 874 KB
- R7F0C807 A/D 转换CC-RL Application Note PDF 707 KB
- RL78/G10 A/D Conversion CC-RL 日本語, 简体中文 Application Note PDF 129 KB
RL78/G10 Air-Conditioned Clothing with Automatic Airflow Adjustment Function 日本語 Application Note PDF 789 KB
RL78/G10 Temperature Sensor Control Using UART Communication Application Note PDF 1003 KB
RL78/G10 シリアル・アレイ・ユニット(UART通信)を用いた温度センサの制御 Application Note PDF 1.05 MB
RL78/G10 Trash Can with Automatic Operating Lid CC-RL 日本語 Application Note PDF 660 KB
RL78/G10 Security Alarm Using Shock Sensor 日本語 Application Note PDF 823 KB
- RL78/G10 A/D Converter (Software Trigger and Sequential Conversion Modes) CC-RL 日本語 Application Note PDF 426 KB
RL78/G10 Timer Array Unit (Interval Timer) CC-RL 日本語 Application Note PDF 423 KB
- RL78/G10 Multiplication and Division Program CC-RL 日本語, 简体中文 Application Note PDF 253 KB
- RL78/G10 A/D Conversion CC-RL 日本語, 简体中文 Application Note PDF 129 KB
- RL78/G10 UART Transmission of A/D Conversion Results Average CC-RL 日本語 Application Note PDF 506 KB
- RL78/G10 A/D Conversion 日本語 Application Note PDF 518 KB
Downloads
[Evaluation Software] CS+ for CC V8.05.00 (Single Download) 日本語 Evaluation Software ZIP 719.07 MB
CS+ for CC common program V8.05.00 日本語 Upgrade - IDE ZIP 243.98 MB
Differential update program V8.05.00 for CS+ for CC common program V8.02.00 or later 日本語 Upgrade - IDE ZIP 80.87 MB
[Evaluation Software] CS+ for CA,CX V4.05.00 (Single Download) 日本語 Evaluation Software ZIP 483.78 MB
CS+ for CA,CX common program V4.05.00 日本語 Upgrade - IDE ZIP 196.94 MB
[Evaluation Software] CS+ for CC V8.04.00 (Single Download) 日本語 Evaluation Software EXE 688.19 MB
Onboard LED Flashing Control (Arduino API) - Sample Code 日本語 Sample Code ZIP 997 KB
- Onboard LED Flashing Control (Arduino API) Sample Code ZIP 1.78 MB
Onboard LED Flashing Control (Arduino API) Sample Code ZIP 1.78 MB
- RL78/G10 Automatic Hand Soap Dispenser Application Notes Sample Code ZIP 1.79 MB
RL78/G10 Automatic Hand Soap Dispenser Application Notes Sample Code ZIP 1.79 MB
- RL78/G10 Hand dryer Application Notes Sample Code ZIP 1.34 MB
RL78/G10 Hand dryer Application Notes Sample Code ZIP 1.34 MB
- RL78/G10 Fall Detection Alarm for Walking Stick Using Three-Axis Acceleration Sensor 日本語 Sample Code ZIP 23.12 MB
RL78/G10 Fall Detection Alarm for Walking Stick Using Three-Axis Acceleration Sensor 日本語 Sample Code ZIP 23.12 MB
R7F0C807 A/D 转换CC-RL Sample Code ZIP 722 KB
RL78/G10 A/D 转换CC-RL Sample Code ZIP 723 KB
- RL78/G10 Air-Conditioned Clothing with Automatic Airflow Adjustment Function 日本語 Sample Code ZIP 1.04 MB
- RL78/G10 Temperature Sensor Control Using UART Communication 日本語 Sample Code ZIP 1.24 MB
- RL78/G10 Temperature Sensor Control Using UART Communication 日本語 Sample Code ZIP 1.24 MB
- RL78/G10 Trash Can with Automatic Operating Lid CC-RL 日本語 Sample Code ZIP 881 KB
- RL78/G10 Security Alarm Using Shock Sensor 日本語 Sample Code ZIP 1.00 MB
RL78/G10 A/D Converter (Software Trigger and Sequential Conversion Modes) CC-RL 日本語 Sample Code ZIP 587 KB
- RL78/G10 Timer Array Unit (Interval Timer) CC-RL 日本語 Sample Code ZIP 602 KB
RL78/G10 Multiplication and Division Program CC-RL - Sample Code 日本語 Sample Code ZIP 331 KB
RL78/G10 A/D Conversion CC-RL 日本語 Sample Code ZIP 192 KB
RL78/G10 UART Transmission of A/D Conversion Results Average CC-RL 日本語 Sample Code ZIP 562 KB
RL78/G10 A/D Conversion 日本語 Sample Code ZIP 370 KB
Tool News
[Upgraded to version] e² studio 2021-01 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.01 日本語 Tool News - Release PDF 57 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.01 日本語 Tool News - Release PDF 81 KB
[Notification] Flash Programmer Survey Invitation 日本語 Tool News - Notification PDF 29 KB
[Featured Tool] Minimize the time for optimizing current consumption with IAR Embedded Workbench®! Introducing the E2 Emulator current consumption measuring function 日本語 Tool News - Featured Tool PDF 260 KB
[Notes] On-chip Debugging Emulator E2 Emulator 日本語 Tool News - Note PDF 144 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.00 日本語 Tool News - Release PDF 72 KB
[Upgraded to version] e² studio 2020-10 日本語 Tool News - Release PDF 160 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.00 日本語 Tool News - Release PDF 83 KB
[Upgrade to revision] Renesas Flash Programmer V3.06.02 日本語 Tool News - Release PDF 80 KB
[Upgraded to version] e² studio 2020-07 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.02 日本語 Tool News - Release PDF 74 KB
Other
PG-FP6 Flash Memory Programmer Release Note 日本語 Release Note PDF 269 KB
RL78/G1N: VOL-IOL (Open-drain Mode) Other PDF 71 KB
RL78/G1M, RL78/G1N: VOL-IOL (Drive Current) Other PDF 79 KB
RL78/G1M, RL78/G1N: VOH-IOH (Drive Current) Other PDF 102 KB
RL78/G1M, RL78/G1N: Supply current characteristics (IDD-VDD) Other PDF 108 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
[Flyer] Renesas Software and Tools e² studio: Integrated Development Environment Based on Eclipse Flyer PDF 930 KB
[Flyer] Renesas Software and Tools C Compiler Package for RL78 Family 日本語 Flyer PDF 414 KB

Software / Tools

Title Type Description Company
CS+ IDE and Coding Tool Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] Important: CS+ is not generally promoted to U.S. and European customers. Renesas

Boards & Kits

Part Number Title Type Company
RTK5RLG1N0C00000BJ RL78/G1N Fast Prototyping Board Evaluation