ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 280

• 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

27.6
7799D–AVR–11/10
Pin Threshold and Hysteresis
Figure 27-14. USB DP HI Pull-Up Resistor Current vs. USB Pin Voltage
Figure 27-15. I/O Pin Input Threshold Voltage vs. V
1600
1400
1200
1000
1.7
1.5
1.3
1.1
0.9
0.7
800
600
400
200
0
2.5
0
2.8
0.5
3.1
3.4
1
3.7
1.5
V
V
USB
CC
4
(V)
(V)
ATmega8U2/16U2/32U2
CC
2
4.3
(V
IH
, I/O Pin read as ‘1’)
4.6
2.5
4.9
3
5.2
5.5
3.5
-40 °C
-40 °C
25 °C
85 °C
25 °C
85 °C
280