ATMEGA32U4-AU Atmel, ATMEGA32U4-AU Datasheet - Page 83

• Manufacturer Part Number: ATMEGA32U4-AU
• Description: MCU AVR 32K FLASH 16MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32U4-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2.5 KB
• Interface Type: SPI/TWI/USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 2.5KB
• # I/os (max): 26
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: TQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 26
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2.5KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA32U4-16AU; ATMEGA32U4-16AU

10.4.2
10.4.3
10.4.4
10.4.5
10.4.6
10.4.7
10.4.8
10.4.9
7766F–AVR–11/10
Port B Data Direction Register – DDRB
Port B Input Pins Address – PINB
Port C Data Register – PORTC
Port C Data Direction Register – DDRC
Port C Input Pins Address – PINC
Port D Data Register – PORTD
Port D Data Direction Register – DDRD
Port D Input Pins Address – PIND
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
7
DDB7
R/W
0
7
PINB7
R/W
N/A
7
PORTC
7
R/W
0
7
DDC7
R/W
0
7
PINC7
R/W
N/A
7
PORTD
7
R/W
0
7
DDD7
R/W
0
7
PIND7
R/W
N/A
6
DDB6
R/W
0
6
PINB6
R/W
6
PORTC
6
R/W
0
6
DDC6
R/W
0
6
PINC6
R/W
6
PORTD
6
R/W
0
6
DDD6
R/W
0
6
PIND6
R/W
N/A
N/A
N/A
5
DDB5
R/W
0
5
PINB5
R/W
5
-
R/W
0
5
-
R/W
0
5
-
R/W
5
PORTD
5
R/W
0
5
DDD5
R/W
0
5
PIND5
R/W
N/A
N/A
N/A
4
DDB4
0
4
4
-
0
4
-
0
4
-
4
PORTD
4
0
4
DDD4
0
4
R/W
PINB4
R/W
N/A
R/W
R/W
R/W
N/A
R/W
R/W
PIND4
R/W
N/A
3
DDB3
R/W
0
3
PINB3
R/W
N/A
3
-
R/W
0
3
-
R/W
0
3
-
R/W
N/A
3
PORTD
3
R/W
0
3
DDD3
R/W
0
3
PIND3
R/W
N/A
2
DDB2
R/W
0
2
PINB2
R/W
N/A
2
-
R/W
0
2
-
R/W
0
2
-
R/W
N/A
2
PORTD
2
R/W
0
2
DDD2
R/W
0
2
PIND2
R/W
N/A
1
DDB1
R/W
0
1
PINB1
R/W
N/A
1
-
R/W
0
1
-
R/W
0
1
-
R/W
N/A
1
PORTD
1
R/W
0
1
DDD1
R/W
0
1
PIND1
R/W
N/A
ATmega16/32U4
0
DDB0
R/W
0
0
PINB0
R/W
N/A
0
-
R/W
0
0
-
R/W
0
0
-
R/W
N/A
0
PORTD
0
R/W
0
0
DDD0
R/W
0
0
PIND0
R/W
N/A
DDRB
PINB
PORTC
DDRC
PINC
PORTD
DDRD
PIND
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