ATMEGA8U2_1 ATMEL [ATMEL Corporation], ATMEGA8U2_1 Datasheet - Page 2

• Manufacturer Part Number: ATMEGA8U2_1
• Description: 8-bit Microcontroller with 8/16/32K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

1. Pin Configurations
Figure 1-1.
1.1
7799CS–AVR–12/09
(RXD1 / AIN1 / INT2) PD2
(PCINT11 / AIN2 ) PC2
(OC.0B / INT0) PD0
(AIN0 / INT1) PD1
Disclaimer
(PC0) XTAL2
Pinout
XTAL1
GND
VCC
1
2
3
4
5
6
7
8
32
9
31
10
Note:
Typical values contained in this datasheet are based on simulations and characterization of
other AVR microcontrollers manufactured on the same process technology. Min and Max values
will be available after the device is characterized.
30
11
QFN32
12
29
28 27 26
13 14 15
The large center pad underneath the VQFP and QFN package should be soldered to ground on
the board to ensure good mechanical stability.
25
16
24
23
22
21
20
19
18
17
Reset (PC1 / dW)
PC6 (OC.1A / PCINT8)
PB7 (PCINT7 / OC.0A / OC.1C)
PB6 (PCINT6)
PB5 (PCINT5)
PB4 (T1 / PCINT4)
PB3 (PDO / MISO / PCINT3)
PC7 (INT4 / ICP1 / CLKO)
(RXD1 / AIN1 / INT2) PD2
(PCINT11 /AIN2 ) PC2
(OC.0B / INT0) PD0
(AIN0 / INT1) PD1
(PC0) XTAL2
XTAL1
GND
VCC
1
2
3
4
5
6
7
8
32
9
ATmega8U2/16U2/32U2
10
31
VQFP32
30
11
29
12
13 14 15
28 27 26
16
25
24
23
22
21
20
19
18
17
Reset (PC1 / dW)
PC6 (OC.1A / PCINT8)
PB7 (PCINT7 / OC.0A / OC.1C)
PB6 (PCINT6)
PB5 (PCINT5)
PB4 (T1 / PCINT4)
PB3 (PDO / MISO / PCINT3)
PC7 (INT4 / ICP1 / CLKO)
2