HT48RU80/HT48CU80
I/O Type 8-Bit MCU
Technical Document
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Features
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Operating voltage:
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576´8 data memory RAM
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Universal Asynchronous Receiver/Transmitter
f
SYS
=4MHz: 2.2V~5.5V
f
SYS
=8MHz: 3.3V~5.5V
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Low voltage reset function
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56 bidirectional I/O lines (max.)
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Two interrupt input
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16-bit´2 programmable timer/event counter and
(UART)
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HALT function and wake-up feature reduce power
consumption
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16-level subroutine nesting
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Up to 0.5ms instruction cycle with 8MHz system clock
overflow interrupts with PFD outputs
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8-bit´1 programmable timer/event counter
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On-chip RC oscillator, external crystal and RC oscil-
at V
DD
=5V
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Bit manipulation instruction
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16-bit table read instruction
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63 powerful instructions
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All instructions in one or two machine cycles
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48-pin SSOP, 64-pin QFP package
lator
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32768Hz crystal oscillator for timing purposes only
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Watchdog Timer
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16K´16 program memory ROM
General Description
The HT48RU80/HT48CU80 are 8-bit high performance,
RISC architecture microcontroller devices specifically
designed for multiple I/O control product applications.
The mask version HT48CU80 is fully pin and function-
ally compatible with the OTP version HT48RU80 de-
vice.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, HALT and
wake-up functions, watchdog timer, buzzer driver, as
well as low cost, enhance the versatility of these devices
to suit a wide range of application possibilities such as
industrial control, consumer products, subsystem con-
trollers, etc.
The HT48CU80 is under development and will be avail-
able soon.
Rev. 1.00
1
April 12, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
