ATmega168P Atmel Corporation, ATmega168P Datasheet - Page 318

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ATmega168P

Manufacturer Part Number
ATmega168P
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168P

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
Yes
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
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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318
3. C
4. f
5. This requirement applies to all ATmega48P/88P/168P 2-wire Serial Interface operation. Other devices connected to the 2-
ATmega48P/88P/168P
wire Serial Bus need only obey the general f
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
Figure 29-6. 2-wire Serial Bus Timing
SCL
SDA
t
SU;STA
SCL
t
HD;STA
requirement.
t
t
of
LOW
t
HIGH
t
HD;DAT
t
LOW
t
SU;DAT
t
SU;STO
t
r
8025M–AVR–6/11
t
BUF

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