ATmega168 Atmel Corporation, ATmega168 Datasheet - Page 86

• 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

2545T–AVR–05/11
Table 14-10. Overriding signals for alternate functions PD7..PD4.
Table 14-11. Overriding signals for alternate functions in PD3..PD0.
Signal
name
PUOE
PUO
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
name
PUOE
PUO
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
PD7/AIN1
/PCINT23
0
0
0
0
0
0
PCINT23 • PCIE2
1
PCINT23 INPUT
AIN1 INPUT
PD3/OC2B/INT1/
PCINT19
0
0
0
0
OC2B ENABLE
OC2B
INT1 ENABLE +
PCINT19 • PCIE2
1
PCINT19 INPUT
INT1 INPUT
–
PD6/AIN0/
OC0A/PCINT22
0
0
0
0
OC0A ENABLE
OC0A
PCINT22 • PCIE2
1
PCINT22 INPUT
AIN0 INPUT
PD2/INT0/
PCINT18
0
0
0
0
0
0
INT0 ENABLE +
PCINT18 • PCIE1
1
PCINT18 INPUT
INT0 INPUT
–
PD5/T1/OC0B/
PCINT21
0
0
0
0
OC0B ENABLE
OC0B
PCINT21 • PCIE2
1
PCINT21 INPUT
T1 INPUT
–
PD1/TXD/
PCINT17
TXEN
0
TXEN
1
TXD
PCINT17 • PCIE2
1
PCINT17 INPUT
–
TXEN
ATmega48/88/168
PD4/XCK/
T0/PCINT20
0
0
0
0
UMSEL
XCK OUTPUT
PCINT20 • PCIE2
1
PCINT20 INPUT
XCK INPUT
T0 INPUT
–
PD0/RXD/
PCINT16
RXEN
PORTD0 • PUD
RXEN
0
0
0
PCINT16 • PCIE2
1
PCINT16 INPUT
RXD
–
86