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Touch MCU

13 touch key TOP MCU with 12-bit ADC
CM8663

CM8663 series is a fully static CMOS 8-bit microprocessor with touch, ADC, and OTP-based program. It uses the RISC architecture and most instructions are executed in one instruction cycle, and only a few of the indirect addressing instructions require two instruction cycles.

CM8663 contains a capacitive touch control circuit with up to 13 keys. In addition, CM8663 also contains 2.5KW OTP program memory and 160 bytes of data memory, a 16-bit hardware counter, two 8-bit Timer2/Timer3 counters and three 11-bit counters (PWMG0/1/2).


Product detail

 2.5KW OTP program memory

 160 byte data memory

 Up to 13 IO pins can be selected as touch keys

 A hardware 16 bit counter

 Two 8-bit hardware PWM generators

 Three 11 bit hardware PWM generators (PWMG0, PWMG1&PWMG2)

 A hardware comparator

 Providing 1T 8 × 8 Hardware multiplier

 14 IO pins with pull-up resistance option

 Each IO pin has the system wake-up function

 PA6/PA7/PB7 supports large perfusion current: 80mA

 Bandgap circuit provides 1.20V bandgap voltage

 Up to 12 channels and 12 bit ADC, one of which is from the internal bandgap reference voltage or 0.25 * VDD

 Provide ADC reference high voltage: external input, internal VDD, bandgap (1.20V), 4V, 3V, 2V


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