NanoBob.com
electronic universe
AVR
PIC
TTL-74
CMOS-40
OPAMP
BJT
-
circuits
ATtiny40 - AVR microcontroller
pinout
1
PB0
20
PB2
2
PA7
19
PB3
3
PA6
4
PA5
17
PC0
5
PA4
16
PC1
6
PA3
15
PC2
7
PA2
14
PC3
8
PA1
13
PC4
9
PA0
12
PC5
10
GND
11
VCC
ATtiny40
www.nanobob.com
symbol
9
PA0
17
PC0
8
PA1
16
PC1
7
PA2
15
PC2
6
PA3
14
PC3
5
PA4
13
PC4
4
PA5
12
PC5
3
PA6
2
PA7
1
PB0
21
PB1
20
PB2
19
PB3
pin types
0
digital input
0
digital output
0
digital input-output (bidir)
0
analog (input or output)
0
positive power
0
ground
0
negative power