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HT47C20L Datasheet

  • HT47C20L

  • 8-Bit Microcontroller

  • 55頁(yè)

  • HOLTEK

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HT47C20L
8-Bit Microcontroller
Features
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Operating voltage: 1.2V~2.2V
Eight bidirectional I/O lines
Four input lines
One interrupt input
One 16-bit programmable timer/event
counter with PFD (programmable
frequency divider) function
On-chip 32768Hz crystal oscillator
Watchdog timer
2K
麓
16 program memory ROM
64
麓
8 data memory RAM
One real time clock (RTC)
One 8-bit prescaler for real time clock
One buzzer output
One low voltage detector
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One low voltage reset circuit
Halt function and wake-up feature reduce
power consumption
LCD bias C type
One LCD driver with 20
麓
2 or 20
麓
3 or 19
麓
4
segments
Two channels RC type A/D converter
Four-level subroutine nesting
Bit manipulation instruction
16-bit table read instruction
Up to 122ms instruction cycle with 32768Hz
system clock
All instructions in one or two machine cycles
63 powerful instructions
General Description
The HT47C20L is an 8-bit high performance
RISC-like microcontroller. Its single cycle in-
struction and two-stage pipeline architecture
make high speed applications. The device is
suited for use in multiple LCD low power appli-
cations among which are calculators, clock tim-
ers, games, scales, toys, thermometers,
hygrometers, body thermometers, capacitor
scaler, other hand held LCD products, and bat-
tery system in particular.
1
January 18, 2000

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