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RL78/I1D

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Product Longevity: 2035

Microcontrollers Suitable for Applications such as Detectors and Sensors Requiring Low Power and Analog Integration

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Overview

The RL78/I1D microcontroller has enhanced analog functions such as operational amplifiers, 12-bit A/D converter, and window comparators. The MCU also supports very-low power operation (124µA at 1MHz) and a high-speed 4µs wake up.

RL78/I1D Block Diagram
RL78/I1D Block Diagram
  • CPU: RL78 core, Max. 24MHz
  • Voltage: 1.6V to 3.6V
  • Package: 24-pin to 32-pin QFN, 32-pin to 48-pin QFP, 20-pin to 30-pin SOP
  • Memory: SRAM Max. 3KB, Program Flash Max. 32KB

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Design & Development

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.

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Resources

Support Communities

  1. How can I reset TRT00 register of 8bit interval timer? (RL78/I1D)

    Hi, I want to run the timer in certain parts of the program. It needs to start from zero in every time it runs. I couldnt do it because we cannot write any value to the TRTni registers. How can I  reset 8bit interval timer counter regsiter or channel?

    Mar 11, 2024
  2. RL78/I1D and sun founder LCM1602 I2C LCD connection

    Hello, I have a RL78/I1D (RTE5117GC0TGB00000R) Target board and using sunfounder LCM1602 I2C LCD. I'm unable to see any signal on the I2C pins. Using the IIC01 channel on pins P51 and P52. Find below my code snippet. Calling R_SAU0_Create(); in R_MAIN_UserInit(). LiquidCrystal ...

    Sep 28, 2018
  3. Flash Memory Retention Period for R5F117GAGFB (RL78/I1D)

    Hello, I am currently working with the R5F117GAGFB microcontroller from the RL78/I1D series. I would like to know the flash memory retention period (in years) under standard operating conditions. I could not find a clear statement in the datasheet regarding how long the flash memory contents are guaranteed ...

    Apr 15, 2025
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FAQs

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

    ... G1H, RL78/G1M,RL78/G1N, RL78/G1P, RL78/G22, RL78/G23, RL78/G24, RL78/H1D, RL78/I1A, RL78/I1B, RL78/I1C, RL78/I1D, RL78/I1E, RL78/L12, RL78/L13, RL78/L1A, RL78/L1C   Japanese

    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. RL78 Family: Relationship between A/D Conversion Resolution and A/D Conversion Time

    ... Group A: RL78/I1B, RL78/I1C, RL78/I1EGroup B: RL78/G23, RL78/G24Group C: RL78/G1A, RL78/G1P, RL78/I1D, RL78/L1CGroup D: RL78/F23, RL78/F24, RL78/L1AGroup E: RL78/D1A, RL78/F12, RL78/ ...

    Nov 12, 2024
View All Results from FAQs (20)

Videos & Training

The easy-to-build RL78 Quick Solutions feature Renesas' ultra-low power RL78 MCUs and analog devices. These solutions showcase device combinations that improve design performance and power efficiency to support your product development.