The HS6635CS is an MCU with a built-in PIR signal processing circuit. The PIR signal processing circuit includes a 16-bit ADC to convert PIR weak sensing signal; and a 0.4 H z to 7 H z digital bandpass filter for the ADC conversion; and a 7-bit SAR ADC according to the actual application. Built-in MCU resource is rich, including interrupt, timer, PWM output, etc.

Except for the jump instruction 2 instruction cycles, the other instructions are an instruction cycle

ROM in 2K slices

Direct and indirect addressing is available

216-bit timers:

        TC0: External event counter / PWM0 / Buzzer output;

        TC 1: External event counter / PWM1 / Buzzer output;

Built-in POR, BOR

Built-in electrical reset time PWRT and oscillator start time OSCT

Built-in WDT watchdog

Built-in calibratable IHRC oscillator

Built-in calibratable ILRC oscillator

A safe bit (in code register) protecver is not read out

384 RAM

Built-in I2C communication protocol

Three sets of standard bidirectional I / O ports

Level 8 is used for a nested stack for the subroutines

 6 Avinterruptions:

        Four internal interruptions: TC0, TC1, ADC, I2C;

        2 External interrupages: INT0, INT1

16bit Sigma-Delta ADC