ATmega168P Atmel Corporation, ATmega168P Datasheet - Page 295

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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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28.5
28.6
28.6.1
8025M–AVR–6/11
Page Size
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Table 28-9.
Table 28-10. No. of Words in a Page and No. of Pages in the EEPROM
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega48P/88P/168P. Pulses are
assumed to be at least 250 ns unless otherwise noted.
In this section, some pins of the ATmega48P/88P/168P are referenced by signal names describ-
ing their functionality during parallel programming, see
described in the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in
Device
ATmega48P
ATmega88P
ATmega168P
Device
ATmega48P
ATmega88P
ATmega168P
No. of Words in a Page and No. of Pages in the Flash
Flash Size
(4K bytes)
(8K bytes)
(16K bytes)
EEPROM
256 bytes
512 bytes
512 bytes
2K words
4K words
8K words
Size
Table
Table
Page Size
32 words
32 words
64 words
4 bytes
4 bytes
4 bytes
28-14.
Page
28-13.
Size
PCWORD
PCWORD
EEA[1:0]
EEA[1:0]
EEA[1:0]
PC[4:0]
PC[4:0]
PC[5:0]
ATmega48P/88P/168P
Figure 28-1
Pages
Pages
No. of
No. of
128
128
128
128
64
64
and
PCPAGE
PCPAGE
PC[10:5]
PC[11:5]
PC[12:6]
EEA[7:2]
EEA[8:2]
EEA[8:2]
Table
28-11. Pins not
EEAMSB
PCMSB
10
11
12
7
8
8
295

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