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ATtiny48-MMH データシート(PDF) 4 Page - ATMEL Corporation

部品番号 ATtiny48-MMH
部品情報  8-bit Microcontroller with 4/8K Bytes In-System Programmable Flash
PDF  26 Pages
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メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny48-MMH データシート(HTML) 4 Page - ATMEL Corporation

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4
8008F–AVR–06/10
ATtiny48/88
externally pulled low will source current if the pull-up resistors are activated. The Port D pins are
tri-stated when a reset condition becomes active, even if the clock is not running.
The various special features of Port D are elaborated in “Alternate Functions of Port D” on page
73.
1.1.8
AVCC
AVCC is the supply voltage pin for the A/D converter and a selection of I/O pins. This pin should
be externally connected to VCC even if the ADC is not used. If the ADC is used, it is recom-
mended this pin is connected to VCC through a low-pass filter, as described in “Analog Noise
Canceling Techniques” on page 169.
The following pins receive their supply voltage from AVCC: PC7, PC[5:0] and (in 32-lead pack-
ages) PA[1:0]. All other I/O pins take their supply voltage from VCC.



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