ATMEGA32U4-16AU ATMEL [ATMEL Corporation], ATMEGA32U4-16AU Datasheet - Page 3

• Manufacturer Part Number: ATMEGA32U4-16AU
• Description: 8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

1. Pin Configurations
1.1
2. Overview
7766BS–AVR–07/08
Disclaimer
(PDO/PCINT3/MISO) PB3
(PDI/PCINT2/MOSI) PB2
(PCINT1/SCLK) PB1
(INT.6/AIN.0) PE6
(SS/PCINT0) PB0
Figure 1-1.
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.
The ATmega16U4/ATmega32U4 is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega16U4/ATmega32U4 achieves throughputs approaching 1 MIPS per MHz allowing the
system designer to optimize power consumption versus processing speed.
UVcc
UGnd
UCap
VBus
D+
D-
Pinout ATmega16U4/ATmega32U4
10
11
1
2
3
4
5
6
7
8
9
44-pin QFN/TQFP
INDEX CORNER
AT90USB324
ATmega16U4/ATmega32U4
33
32
31
30
29
28
27
26
25
24
23
PE2 (HWB)
PC7 (ICP3/CLK0/OC4A)
PC6 (OC3A/OC4A)
PB6 (PCINT6/OC1B/OC4B/ADC13)
PB4 (PCINT4/OC2A/ADC11)
PD7 (T0/OC4D/ADC10)
PD6 (T1/OC4D/ADC9)
PD4 (ICP1/ADC8)
GND
PB5 (PCINT5/OC1A/OC4B/ADC12)
AVCC
3