ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 281

• 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

27.7
7799D–AVR–11/10
BOD Threshold
Figure 27-16. I/O Pin Input Threshold Voltage vs. V
Figure 27-17. BOD Thresholds vs. Temperature (BODLEVEL is 2.7 V)
2.81
2.79
2.78
2.77
2.76
2.75
2.74
2.73
2.72
2.71
1.8
1.6
1.4
1.2
0.8
0.6
2.8
1
2.5
-40
-30
2.8
-20
3.1
-10
3.4
0
10
3.7
Temperature (°C)
20
V
Rising Vcc
Falling Vcc
CC
4
(V)
30
ATmega8U2/16U2/32U2
CC
4.3
(V
40
IL
, I/O Pin read as ‘0’)
50
4.6
60
4.9
70
5.2
80
5.5
90
-40 °C
25 °C
85 °C
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