Datasheet

2
ATtiny20 [DATASHEET]
8235ES–AVR–03/2013
1. Pin Configurations
1.1 SOIC & TSSOP
Figure 1-1. SOIC/TSSOP
1.2 VQFN
Figure 1-2. VQFN
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCC
(PCINT8/TPICLK/T0/CLKI) PB0
(PCINT9/TPIDATA/MOSI/SDA/OC1A) PB1
(PCINT11/RESET) PB3
(PCINT10/INT0/MISO/OC1B/OC0A/CKOUT) PB2
(PCINT7/SCL/SCK/T1/ICP1/OC0B/ADC7) PA7
(PCINT6/SS/ADC6) PA6
GND
PA0 (ADC0/PCINT0)
PA1 (ADC1/AIN0/PCINT1)
PA2 (ADC2/AIN1/PCINT2)
PA3 (ADC3/PCINT3)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
1
2
3
4
5
15
14
13
12
11
20 19 18 17 16
6 7 8 9 10
NOTE
Bottom pad should be
soldered to ground.
DNC: Do Not Connect
DNC DNC
GND
VCC
DNC
PA7 (ADC7/OC0B/ICP1/T1/SCL/SCK/PCINT7)
PB2 (CKOUT/OC0A/OC1B/MISO/INT0/PCINT10)
PB3 (RESET/PCINT11)
PB1 (OC1A/SDA/MOSI/TPIDATA/PCINT9)
PB0 (CLKI/T0/TPICLK/PCINT8)
DNC DNC DNC PA5 (ADC5/PCINT5) PA6 (ADC6/PCINT6/SS)
(PCINT4/ADC4) PA4
(PCINT3/ADC3) PA3
(PCINT2/AIN1/ADC2) PA2
(PCINT1/AIN0/ADC1) PA1
(PCINT0/ADC0) PA0