The CMS8H5109 series MCUs are 8-bit SOC designed based on 8051 core.
The chip possesses a operating frequency being as 48MHz, operating voltage being within 2.6V~4.4V, with 64KB Flash Memory, 4.25KB SRAM, 4KB Data Flash, 16KB Boot Flash, 12 GPIOs, built-in high-precision 12-bit ADC, built-in 24-bit Σ-ΔADC, internl gaining being as(1/2/4/8/16/32/64/128/256), effective resolution of 20.6 bits(PGA=128、ODR=10Hz), internal buzzer driver, 5 16-bit general timer.
For the chip’s communication module, 2 UART & one I2C are supported.
The chip operate in a temperature range between -40 ℃ and 85℃ and come in a SOP20 package.
> operating voltage：2.6V-4.4V
> operating temperature：-40℃ - 85℃
> 64KB Flash ROM
> 256 Bytes general perpose RAM
> 4KB XRAM
> 4KB DATA FLASH
> 16KB BOOT FLASH
> 5 16-bit general timer
> 6-channel enhanced PWM module
> buzzer driver
> built-in high-precision 12-bit ADC with reference voltage(2.0V/2.4V/3.0V/VDD)
> built-in high-precision 24-bit Σ-ΔADC, resolution ratio being as 20.6 bits when PGA=128、ODR=10Hz、SET_LDO=00
> built-in temperature sensor
> built-in LDO with output voltage(2.4V/2.6V/3V/3.3V)
> 2 UART port
> 1 i2c port
> 1 SPI interface
> 12 universal GPIO