HTG12B0 Datasheet, PDF (1/33 Pages) Holtek Semiconductor Inc – 4-Bit Microcontroller

HTG12B0
4-Bit Microcontroller
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 4ms instruction cycle with 1MHz
system clock
· One level subroutine nesting
· Halt feature reduces power consumption
· 8-bit table read instruction
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.
It is ideally suited for multiple LCD for time
piece low power applications among which are
calculators, scales, calendar and hand held
LCD products.
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September 8, 1999