ATTINY13A データシートの表示（PDF） - Atmel Corporation

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ATTINY13A

8-bit Microcontroller with 1K Bytes In-System Programmable Flash

Atmel Corporation 

ATtiny13A

1.1 Pin Description

1.1.1 VCC

Supply voltage.

1.1.2 GND

Ground.

1.1.3

Port B (PB5:PB0)

Port B is a 6-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The

Port B output buffers have symmetrical drive characteristics with both high sink and source

capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up

resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,

even if the clock is not running.

Port B also serves the functions of various special features of the ATtiny13A as listed on page

55.

1.1.4 RESET

Reset input. A low level on this pin for longer than the minimum pulse length will generate a

reset, even if the clock is not running and provided the reset pin has not been disabled. The min-

imum pulse length is given in Table 18-4 on page 120. Shorter pulses are not guaranteed to

generate a reset.

The reset pin can also be used as a (weak) I/O pin.

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8126ES–AVR–07/10

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