ATmega168 Atmel Corporation, ATmega168 Datasheet - Page 330

• Manufacturer Part Number: ATmega168
• Manufacturer: Atmel Corporation

Specifications of ATmega168

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• 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: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

30.9
2545T–AVR–05/11
Pin thresholds and hysteresis
Figure 30-27. I/O pin sink current vs. output voltage (V
Figure 30-28. I/O pin input threshold voltage vs. V
2.5
1.5
0.5
14
12
10
8
6
4
2
0
3
2
1
0
1.5
0
0.2
2
0.4
2.5
0.6
3
0.8
V
V
OL
CC (V)
3.5
1
(V)
1.2
CC
4
(VIH, I/O pin read as '1').
CC
1.4
= 1.8V).
4.5
ATmega48/88/168
1.6
5
1.8
-40°C
25°C
85°C
5.5
2
-40°C
85°C
25°C
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