General Description

The HT46R12A is an 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors.

Features

• Operating voltage:

     fSYS= 4MHz: 2.2V~5.5V

     fSYS= 8MHz: 3.3V~5.5V

• 17 bidirectional I/O lines

• Two 8-bit programmable timer/event counters with overflow interrupt and 7-stage prescaler

• Single 8-bit programmable pulse generator - PPG - output channel with prescaler and 8-bit programmable timer counter, supporting both active low or active high output

• Integrated crystal and RC oscillator

• Watchdog Timer

• 2048 X 14 program memory

• 88 X 8 data memory RAM

• PFD for audio generation

• Power-down and wake-up functions for reduced power consumption

• Up to 0.5μs instruction cycle with 8MHz system clock at VDD= 5V

• 8-level subroutine nesting

• 4 channel 9-bit resolution A/D converter

• Two comparators with interrupt function

• Bit manipulation instruction

• 14-bit table read instruction

• 63 powerful instructions

• Instructions executed in one or two machine cycles

• Low voltage reset function

• 24-pin SKDIP/SOP package types available