ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 283

• 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

27.8
7799D–AVR–11/10
Internal Oscilllator Speed
Figure 27-20. Bandgap Voltage vs. Vcc
Figure 27-21. Watchdog Oscillator Frequency vs. Temperature
1.107
1.105
1.103
1.101
1.099
1.097
1.095
119
118
117
116
115
114
113
112
111
110
2.5
-40
-30
-20
3
-10
0
3.5
10
Temperature (°C)
20
Vcc (V)
4
30
ATmega8U2/16U2/32U2
40
4.5
50
60
5
70
80
5.5
90
-40 °C
25 °C
85 °C
3.6 V
5.5 V
1.9 V
2.7 V
283