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Product description

Product model

Design & development

  • CMS8H121x

    CMS8H121X is Cmsemicon's high-precision measurement SoC based on RISC core, which is widely used in high-precision measurement fields such as human body scales, kitchen scales, and air pumps.


    Datasheet >

    Main frequency is 8MHz/16MHz, voltage is 2.0V to 4.5V, supply 8KB ROM,344B RAM ,128B EEPROM, Built-in 24-bit precision Sigma-Delta ADC, supports 1 differential input with selectable gains of 2 、4 、12 、16 、48、64 、128 、384. Output rate selectable: 10Hz~10.4KHz; Effective resolution up to 20.0 bits, with internal short switch and system chopper switch, PGA pass-through SAR ADC, integrated temperature sensor. Built-in multi-channel 12-bit SAR ADC; Support hardware LED drivers, support up to 8COM x 8 SEG, Supports 1 UART, Support 2  timers, Can work at -40°C to 85°C, provide SOP16 and SSOP24 packages.


    Features

    > RISC core

    > Working voltage: 2.5V-4.5V @16MHz

    > Working temperature: -40~ +85

    > 8KB ROM

    > 344B general RAM

    > 128B EEPROM

    > 2 8-bit timers

    > Built-in Buzzer driver

    > Built-in multi-channel 12-bit SAR ADC

    > Built-in 24bit high precision Sigma-Delta ADC(speed:10Hz~10.4KHz), support 1 differential input, the highest Effective accuracy of 20.0bit, integrated temperature sensor

    > Built-in LED driver

    > 1 UART interface

    > 18 general-purpose GPIO

    > Package type: SOP16SSOP24

  • Product model

    Part Number Package Frequency (MHz) Core Temp Voltage Memory Type ROM RAM EEPROM GPIO Timer LSE WDT/WWDT UART SAR-ADC SAR-ADC-ch LED Touch Other Interface
    SAR-ADC-bitSAR-ADC-ch
    CMS8H1213 SSOP24 8\16 RISC -40~85 2.0~4.5 MTP 8KB 344B 128B 18 2 Y Y 1 12 5

    8*8

    / 24-bit Sigma-Delta ADC
    CMS8H1211 SOP16 8\16 RISC -40~85 2.0~4.5 MTP 8KB 344B 128B 10 2 Y Y 1 12 2

    7*8

    / 24-bit Sigma-Delta ADC

  • Design & development

    Documentation
    Name Version Describe Download
    CMS8H121x User Manual V1.00

    MCU modules, chip registers, clocks, storage, performance indicators, characteristics, package etc.

    Download >

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