HD8007 80C51-based microcontroller 16K flash memory In-system programming IAP programming Main Data Memory: 256 bytes AUX Memory: 320 bytes Timers 0, 1, 2, 3 Watchdog timer UART0 and UART1 10-bit ADC 21-channel, 10-bit PWM Ports:1, 2, 3 (different options) Low voltage detection and reset Operating voltage: 4.2 ~ 5.6 volts Operating temp.
: -40 ~ +85°C