General Description

The HTG12G0 is a 4-bit single chip microcontroller specially designed for LCD product applications. It is ideally suited for applications requiring

low power consumption, with many LCD segments such as calculator, scale, subsystem controller, hand-held LCD products and electronic appliances.

Features

• Operating voltage: 2.4V~3.3V

• Eight input lines

• Two output lines

• Five working registers

• RC oscillator for system clock

• Crystal oscillator for RTC and LCD clock

• 8K×8 program ROM

• 156×4 data RAM

• 50×8 segment LCD driver, 1/5 bias, 1/8 duty

• 8-bit programmable timer with built-in frequency source

• Internal timer overflow and RTC interrupt

• 16 kinds of programmable sound effects

• Halt function and wake-up feature reduce power consumption

• One-level subroutine nesting

• 8-bit table read instruction

• Up to 4.0µs instruction cycle with 1.0MHz system clock at VDD=3V

• 95 powerful instructions