General Description

The HTG12B0 is a processor from HOLTEK
s 4-bit stand-alone single chip microcontroller specially designed for LCD display and time piece product applications.

Features

● Operating voltage: 2.4V~3.6V

● Eight input lines

● Eight input/output lines

● Five working registers

● 4K  8  4 program ROM

● 128  4  8 (4096) bits data memory RAM

● Sound effect circuit

● 40 segment  16 common, 1/4 bias LCD driver

● LCD output is fixed at 4.4V

● RC oscillator & 32768Hz crystal oscillator

● 8-bit timer with internal or external clock source

● Internal timer overflow

● Up to 4s instruction cycle with 1MHz system clock

● One level subroutine nesting

● Halt feature reduces power consumption

● 8-bit table read instruction