Description
HT1130 4-bit Microcontroller .
The HT1130 is a processor from Holtek s 4-bit stand alone single chip microcontroller range specifically designed for LCD product applications.
Features
* Operating voltage: 2.4V~3.3V
* 12 input lines
* Four output lines
* Five working registers
* Sound effect circuit
* 4K ´ 8 program ROM
* 128 ´ 4 bits data memory RAM size
* 32 ´ 4 segment LCD driver
* RC oscillator for system clock
* Halt feature reduces pow
Applications
* The device is ideally suited for multiple
* Internal timer overflow interrupt
* External interrupt
* One level subroutine nesting
* 8-bit timer with internal or external clock
source
* 8-bit table read instruction
* Up to 4ms instruction cycle with 1MHz sys-
tem clock at VD