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HT48R05A-1 Datasheet

  • HT48R05A-1

  • 8-Bit OTP Microcontroller

  • 44頁

  • HOLTEK

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Preliminary
Features
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HT48R05A-1
8-Bit OTP Microcontroller
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Operating voltage:
f
SYS
=4MHz: 3.3V~5.5V
f
SYS
=8MHz: 4.5V~5.5V
13 bidirectional I/O lines
An interrupt input shared with an I/O line
8-bit programmable timer/event counter with
overflow interrupt and 8-stage prescaler
On-chip crystal and RC oscillator
Watchdog timer
512麓14 program memory PROM
32麓8 data memory RAM
Buzzer driving pair and PFD supported
Halt function and wake-up feature reduce
power consumption
Up to 0.5ms instruction cycle with 8MHz
system clock at V
DD
=5V
All instructions in one or two machine cy-
cles
14-bit table read instruction
Two-level subroutine nesting
Bit manipulation instruction
63 powerful instructions
Low voltage reset function
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.
The program and option memories can be elec-
trically programmed, making the microcontrol-
ler suitable for use in product development.
1
February 25, 2000

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