General Description
The HTG13J0 is a processor from Holtek s 4-bit stand alone single chip microcontroller specially designed for LCD product applications. It is especially suited for applications requiring low power consumption system 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
• Three output lines
• Five working registers
• RC oscillator for system clock
• 8K×8 program ROM
• 160×4 data RAM
• 40×8 segment LCD driver, 1/5 bias, 1/8 duty
• 8-bit programmable timer with built-in frequency source
• Internal timer overflow interrupt
• 16 kinds of programmable sound effect
• One-level subroutine nesting
• Halt function and wake up feature reduce power consumption
• Halt instruction
• 8-bit table read instruction
• Up to 4.0µsec instruction cycle (1.0MHz system clock), at VDD=3V
• 96 powerful instructions