ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 76

• Manufacturer Part Number: ATmega32U2
• Manufacturer: Atmel Corporation

Specifications of ATmega32U2

• Flash (kbytes): 32 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 22
• Ext Interrupts: 20
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

7799D–AVR–11/10
.Table 12-4
shown in
MISO signal, while MOSI is divided into SPI MSTR OUTPUT and SPI SLAVE INPUT..
Table 12-4.
Table 12-5.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Figure 12-5 on page
PB7/OC0A/OC1C/
PCINT7
0
0
0
0
OC0A/OC1C ENABLE
OC0A/OC1C
PCINT7 • PCIE0
1
PCINT7 INPUT
–
PB3/MISO/PCINT3/
PDO
SPE • MSTR
PORTB3 • PUD
SPE • MSTR
0
SPE • MSTR
SPI SLAVE OUTPUT
PCINT3 • PCIE0
1
SPI MSTR INPUT
PCINT3 INPUT
–
and
Overriding Signals for Alternate Functions in PB7..PB4
Overriding Signals for Alternate Functions in PB3..PB0
Table 12-5
relate the alternate functions of Port B to the overriding signals
72. SPI MSTR INPUT and SPI SLAVE OUTPUT constitute the
PB2/MOSI/PCINT2/
PDI
SPE • MSTR
PORTB2 • PUD
SPE • MSTR
0
SPE • MSTR
SPI MSTR OUTPUT
PCINT2 • PCIE0
1
SPI SLAVE INPUT
PCINT2 INPUT
–
PCINT6 • PCIE0
PB6/PCINT6
0
0
0
0
0
0
1
PCINT6 INPUT
–
ATmega8U2/16U2/32U2
PB5/PCINT5
0
0
0
0
0
0
PCINT5 • PCIE0
1
PCINT5 INPUT
–
PB1/SCK/
PCINT1
SPE • MSTR
PORTB1 • PUD
SPE • MSTR
0
SPE • MSTR
SCK OUTPUT
PCINT1 • PCIE0
1
SCK INPUT
PCINT1 INPUT
–
PB4/T1/PCINT4
0
0
0
0
0
0
PCINT4 • PCIE0
1
PCINT4 INPUT
T1 INPUT
–
PB0/SS/PCINT0
SPE • MSTR
PORTB0 • PUD
SPE • MSTR
0
0
0
PCINT0 • PCIE0
1
SPI SS
PCINT0 INPUT
–
76