HT1130
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 power consumption
General Description
The HT1130 is a processor from Holtek s 4-bit stand alone single chip microcontroller range specifically designed for LCD product 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 VDD=3V
- All instructions in 1 or 2 machine cycles
LCD low power applications among which are calculators, scales and hand-held LCD products.
1 May 24, 1999
Block Diagram
O SCI O SCO
IN T RES TEST1 TEST2 T1D T256 V LC D VDD VSS
C o n tro l and
T im in g C ir c u it
S ta c...
