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RL78/H1D

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Microcontrollers for Sensing Transducers in Healthcare Devices and Optimized for Blood Pressure Monitors

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Overview

The RL78/H1D microcontroller includes high precision analog functions such as Delta-Sigma A/D converter, SAR A/D converter, Programmable Gain amplifiers, Operational amplifier, and 8-bit/12-bit D/A converter. It also has a built-in LCD controller/driver which makes the RL78/H1D well suited for healthcare devices, especially blood pressure monitor.

RL78/H1D Block Diagram
RL78/H1D Block Diagram
  • CPU: RL78 core, Max. 24MHz
  • Voltage: 1.8V to 5.5V
  • Package: 64-pin BGA, 48 to 80-pin LFQFP
  • Memory: SRAM Max. 8KB, Program Flash Max. 128KB
  • Timer: 16-bit Timer (ch) x 9, 8-bit Timer (ch) x 6, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch, Sampling output Timer Detector x 6ch input,3ch output, external signal sampler x 1ch
  • PWM: PWM Output x 7
  • Analog function: 10-bit A/D Converter (ch) x 3, Delta-Sigma A/D Converter, 8-bit D/A Converter (ch) x 1, 12-bit D/A Converter (ch) x 1
  • On-chip Oscillator Freq. (MHz): High-Speed: 24, 16, 12, 8, 6, 4, 3, 2, 1MHz
    Low-speed: 15kHz
  • Others: RTC, Power-On Reset, Low Voltage Detection

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Design & Development

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Resources

Support Communities

  1. RTK0EH0003S02001BR - Unable to download PC GUI

    Have bought the above blood pressure monitor evaluation kit - but I'm unable to download the PC interface/GUI from www.renesas.com/bpm-rssk. (404 error) any ideas?

    Feb 10, 2021
  2. Data Flash will erase the whole block in E2 studio.

    ... do not erase flash memory data.     2. Data Flash        Disable Access. Any reason or setting will cause the problem in e2 studio ? PS: 1. MCU: RL78/H1D R5F11NMG2. DEBUG: E2 Lite3. FDL: T04 v1.05 CCRL 4. IDE:     A. cs+, v8.06   B. e2 studio, v7.8 [locked by ...

    Sep 16, 2021
  3. IIR High pass filter sample code for RL78H1D .

    Hi Team   Does Official site have IIR filter example for RL78H1D soluction? Thanks,   JayC.

    Jan 9, 2020
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FAQs

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

    ... G1F, RL78/G1G, RL78/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 ...

    Apr 28, 2025
  2. RL78 Family: Relationship between A/D Conversion Resolution and A/D Conversion Time

    ... G16, RL78/G1C, RL78/G1D, RL78/G1F, RL78/G1G, RL78/G1H, RL78/G1M, RL78/G1N, RL78/G22, RL78/H1D, RL78/I1A, RL78/L12, RL78/L13 ✓: SelectableN/E: Not Eligible Note. It is selectable to read the ...

    Nov 12, 2024
  3. Tell me the points to be aware of when using the RL78 Code Generator with the WDT.

    In the RL78 Code Generator, the Watchdog Timer (WDT) is set to 'Enabled' by default, as shown in the diagram below. To avoid unintended resets by the WDT, please either select 'Disabled' for the 'Watchdog Timer Operation Setting' or add a program to clear the Watchdog Timer counter.

    Dec 10, 2024
View All Results from FAQs (5)