CMS8S6990C is an 8051 chip, with a system clock up to 48MHz, featuring operational amplifiers, comparators, PGA, and all digital functions supporting free mapping to all GPIOs.

>  8051

>  Operating voltage: 2.1V-5.5V

>  Operating temperature: -40℃-85℃

>  16K x 8Bit Flash

>  256 x 8Bit RAM + 1K x 8Bit XRAM

>  1K x 8Bit Data Flash

>  Five 16-bit timers + one LSE timer + one wake-up timer

>  Two UART + one SPI + one I2C

>  Internal 12-bit high-precision ADC with internal reference voltage and multiple internal reference voltages, up to 22 external channels

>  6-channel PWM module, with 3 groups of complementary outputs

>  Two operational amplifiers + two comparators + one PGA

>  Internal LVD module, with multiple voltage options

>  All digital functions support free mapping to all GPIO pins

>  22 GPIO pins

>  96-bit unique ID

>  Package types: TSSOP20, QFN20, SSOP24, QFN24