HT48R10A Datasheet | Holtek Semiconductor

HT48R10A-1 8-Bit Microcontroller Features - - - - - - - - - Operating voltage: fSYS=4MHz: 3.3V~5.5V fSYS=8MHz: 4.5V~5.5V 21 bidirectional I/O lines (max.) 1 interrupt input shared with an I/O line 8-bit programmable timer/event counter with overflow interrupt and 8-stage prescaler On-chip external crystal, RC oscillator and internal RC oscillator 32768Hz crystal oscillator for timing purposes only Watchdog Timer 1024´14 program memory ROM 64´8 data memory RAM - - - - - - - - - - Buzzer driving pair and PFD supported HALT function and wake-up feature reduce power consumption Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V All instructions in one or two machine cycles...