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HT48C50- Datasheet

  • HT48C50-

  • 8-Bit Microcontroller

  • 293.85KB

  • 45頁

  • HOLTEK

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Preliminary
Features
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HT48C50-1
8-Bit Microcontroller
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Operating voltage:
f
SYS
=4MHz: 2.4V~5.5V
f
SYS
=8MHz: 4.5V~5.5V
Low voltage reset function
35 bidirectional I/O lines (max.)
1 interrupt input shared with an I/O line
8-bit programmable timer/event counter with
overflow interrupt and 8-stage prescaler
16-bit programmable timer/event counter
and overflow interrupts
On-chip RC oscillator, external crystal and
RC oscillator
32768Hz crystal oscillator for timing
purposes only
Watchdog Timer
4096麓15 program memory ROM
160麓8 data memory RAM
Buzzer driving pair and PFD supported
Halt function and wake-up feature reduce
power consumption
6-level subroutine nesting
Up to 0.5ms instruction cycle with 8MHz
system clock at V
DD
=5V
Bit manipulation instruction
15-bit table read instruction
63 powerful instructions
All instructions in one or two machine
cycles
28-pin SKDIP and 40-pin DIP package
General Description
The device is an 8-bit high performance
RISC-like microcontroller designed for multi-
ple I/O product applications. The device is par-
ticularly suitable for use in products such as
remote controllers, fan/light controllers, wash-
ing machine controllers, scales, toys and vari-
ous subsystem controllers. A HALT feature is
included to reduce power consumption.
1
June 14, 2000

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