Datasheet

4
8265CS–AVR–03/12
ATtiny87
1.4 Pin Configuration
Figure 1-2. Pinout ATtiny87/167 - SOIC20 & TSSOP20
Figure 1-3. Pinout ATtiny87/167 - QFN32/MLF32
PB0 (PCINT8 / OC1AU / DI / SDA)
PB1 (PCINT9 / OC1BU / DO)
PB2 (PCINT10 / OC1AV / USCK / SCL)
PB3 (PCINT11 / OC1BV)
GND
VCC
PB4 (PCINT12 / OC1AW / XTAL1 / CLKI)
PB5 (PCINT13 / ADC8 / OC1BW / XTAL2 / CLKO)
PB6 (PCINT14 / ADC9 / OC1AX / INT0)
PB7 (PCINT15 / ADC10 / OC1BX / RESET / dW)
(RXLIN / RXD / ADC0 / PCINT0) PA0
(TXLIN / TXD / ADC1 / PCINT1) PA1
(MISO / DO / OC0A / ADC2 / PCINT2) PA2
(INT1 / ISRC / ADC3 / PCINT3) PA3
AVCC
AGND
(MOSI / SDA / DI / ICP1 / ADC4 / PCINT4) PA4
(SCK / SCL / USCK / T1 / ADC5 / PCINT5) PA5
(SS / AIN0 / ADC6 / PCINT6) PA6
(AREF / XREF / AIN1 / ADC7 / PCINT7) PA7
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
20-pin
top
view
(INT0 / OC1AX / ADC9 / PCINT14 ) PB6
PB5 (PCINT13 / ADC8 / OC1BW / XTAL2 / CLKO)
PB4 (PCINT12 / OC1AW / XTAL1 / CLKI)
VCC
GND
1
2
3
4
5
21
20
19
18
17
32
30
29 28 31
9
11
12 13 10
32-lead
top view
PB2 (PCINT10 / OC1AV / USCK / SCL) PB1 (PCINT9 / OC1BU / DO) (dW / RESET / OC1BX / ADC10 / PCINT15) PB7
(AREF / XREF / AIN1 / ADC7 / PCINT7) PA7
(SS / AIN0 / ADC6 / PCINT6) PA6
(SCK / SCL / USCK / T1 / ADC5 / PCINT5) PA5
AGND
AVCC
(INT1 / ISRC / ADC3 / PCINT3) PA3
PA1 (PCINT1 / ADC1 / TXD / TXLIN) PA2 (PCINT2 / ADC2 / OC0A / DO / MISO) nc
nc nc
nc
nc
nc
nc
nc
nc
nc
nc nc
PA0 (PCINT0 / ADC0 / RXD / RXLIN)
INDEX CORNER
Bottom pad should be
soldered to ground
6
7
8
14 15 16
PB3 (PCINT11 / OC1BV)
24
23
22
27
25
26
PB0 (PCINT8 / OC1AU / DI / SDA)
(MOSI / SDA / DI / ICP1 / ADC4 / PCINT4) PA4