ATmega16U2 Atmel Corporation, ATmega16U2 Datasheet - Page 60

• Manufacturer Part Number: ATmega16U2
• Manufacturer: Atmel Corporation

Specifications of ATmega16U2

• Flash (kbytes): 16 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: 21
• 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): 0.5
• Eeprom (bytes): 512
• 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

Table 10-5.
Table 10-6.
7799D–AVR–11/10
WDP3
WDP3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
WDP2
WDP2
Watchdog Timer Prescale Select, DIV = 2 (CLKwdt = CLK128 / 5)
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Watchdog Timer Prescale Select, DIV = 3 (CLKwdt = CLK128 / 7)
0
0
0
0
1
1
1
1
0
0
WDP1
WDP1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
WDP0
WDP0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Number of WDT Oscillator
Cycles before 1st time-out
Number of WDT Oscillator
Cycles before 1st time-out
1024K (1048576) cycles
1024K (1048576) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
(Early warning)
(Early warning)
Early warning Typical
Early warning Typical
Reserved
ATmega8U2/16U2/32U2
Time-out at
Time-out at
V
V
CC
CC
160 ms
320 ms
0.625 s
112 ms
224 ms
448 ms
0.875 s
80 ms
1.25 s
1.75 s
2.5 s
3.5 s
10 s
20 s
40 s
14 s
28 s
56 s
5 s
7 s
= 5.0V
= 5.0V
Reset/Interrupt Typical
Reset/Interrupt Typical
Time-out at
Time-out at
V
V
Watchdog
Watchdog
CC
CC
160 ms
320 ms
640 ms
224 ms
448 ms
896 ms
1.25 s
1.75 s
112 s
2.5 s
3.5 s
10 s
20 s
40 s
80 s
14 s
28 s
56 s
5 s
7 s
= 5.0V
= 5.0V
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