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ATTINY25-20SH Datasheet(PDF) 2 Page - ATMEL Corporation |
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ATTINY25-20SH Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 30 page 2 2586L–AVR–06/10 ATtiny25/45/85 1. Pin Configurations Figure 1-1. Pinout ATtiny25/45/85 1.1 Pin Descriptions 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 1 2 3 4 8 7 6 5 (PCINT5/RESET/ADC0/dW) PB5 (PCINT3/XTAL1/CLKI/OC1B/ADC3) PB3 (PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4 GND VCC PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0) PDIP/SOIC/TSSOP 1 2 3 4 5 QFN/MLF 15 14 13 12 11 NOTE: Bottom pad should be soldered to ground. DNC: Do Not Connect NOTE: TSSOP only for ATtiny45/V (PCINT5/RESET/ADC0/dW) PB5 (PCINT3/XTAL1/CLKI/OC1B/ADC3) PB3 DNC DNC (PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4 VCC PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) DNC PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0) |
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