ATmega168 Atmel Corporation, ATmega168 Datasheet - Page 31
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ATmega168
Manufacturer Part Number
ATmega168
Description
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
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12.6
12.7
12.8
12.9
12.10 Rev. 2545K-04/07
2545TS–AVR–05/11
Rev. 2545O-02/09
Rev. 2545N-01/09
Rev. 2545M-09/07
Rev. 2545L-08/07
1.
2.
1.
2.
3.
4.
5.
6.
7.
1.
2.
3.
1.
2.
3.
4.
1.
2.
3.
Changed minimum Power-on Reset Threshold Voltage (falling) to 0.05V in
Added section
Updated code example in
Changed description in
3 on page
Removed section “Power-on slope rate” from
page
Updated
designs”.
Merged the sections Resources, Data Retention and About Code Examples under
one common section,
Updated
Updated
Updated
Updated
Added
Updated
“Preliminary“ removed through the datasheet.
Updated
Updated
Updated Note in
Table 8-10 on page
Updated
Updated“Errata Atmel ATmega48” on page 22
306.
“Data retention” on page
Figure 8-4 on page
“System clock prescaler” on page
“Alternate functions of port B” on page
“Pin thresholds and hysteresis” on page
“ADC characteristics” on page
“Features” on page
“System and reset characteristics” on page
“Interrupts” on page
“Features” on page 1
306.
“” on page
Table 8-3 on page
33.
“Resources” on page
“Analog-to-digital converter” on page
306.
“MCUCR – MCU control register” on page
34.
1.
55.
7.
and added the note “Not recommended for new
29,
Table 8-5 on page
310.
35.
7.
“System and reset characteristics” on
.
77.
329.
ATmega48/88/168
306.
30,
243.
Table 8-8 on page
63.
Table 28-
33,
31