ATmega168 Atmel Corporation, ATmega168 Datasheet - Page 2

• 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

1. Pin configurations
Figure 1-1.
2
NOTE: Bottom pad should be soldered to ground.
ATmega48/88/168
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
Pinout Atmel ATmega48/88/1682545TS
(PCINT20/XCK/T0) PD4
(PCINT21/OC0B/T1) PD5
(PCINT20/XCK/T0) PD4
GND
GND
VCC
VCC
GND
VCC
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
28 MLF Top View
TQFP Top View
21
20
19
18
17
16
15
24
23
22
21
20
19
18
17
PC2 (ADC2/PCINT10)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
GND
AREF
AVCC
PB5 (SCK/PCINT5)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
NOTE: Bottom pad should be soldered to ground.
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
(PCINT20/XCK/T0) PD4
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
(PCINT19/OC2B/INT1) PD3
(PCINT22/OC0A/AIN0) PD6
(PCINT0/CLKO/ICP1) PB0
(PCINT21/OC0B/T1) PD5
(PCINT20/XCK/T0) PD4
(PCINT14/RESET) PC6
(PCINT23/AIN1) PD7
(PCINT16/RXD) PD0
(PCINT18/INT0) PD2
(PCINT17/TXD) PD1
GND
GND
VCC
VCC
1
2
3
4
5
6
7
8
GND
VCC
32 MLF Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PC5 (ADC5/SCL/PCINT13)
PC4 (ADC4/SDA/PCINT12)
PC3 (ADC3/PCINT11)
PC2 (ADC2/PCINT10)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
GND
AREF
AVCC
PB5 (SCK/PCINT5)
PB4 (MISO/PCINT4)
PB3 (MOSI/OC2A/PCINT3)
PB2 (SS/OC1B/PCINT2)
PB1 (OC1A/PCINT1)
24
23
22
21
20
19
18
17
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
2545TS–AVR–05/11