ATmega168A Atmel Corporation, ATmega168A Datasheet - Page 302

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ATmega168A

Manufacturer Part Number
ATmega168A
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168A

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
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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28.4
28.5
8271D–AVR–05/11
Calibration Byte
Page Size
Table 28-10. Device ID
The ATmega48A/PA/88A/PA/168A/PA/328/P has a byte calibration value for the Internal RC
Oscillator. This byte resides in the high byte of address 0x000 in the signature address space.
During reset, this byte is automatically written into the OSCCAL Register to ensure correct fre-
quency of the calibrated RC Oscillator.
Table 28-11. No. of Words in a Page and No. of Pages in the Flash
Table 28-12. No. of Words in a Page and No. of Pages in the EEPROM
Part
ATmega168PA
ATmega328
ATmega328P
Device
ATmega48A
ATmega48PA
ATmega88A
ATmega88PA
ATmega168A
ATmega168PA
ATmega328
ATmega328P
Device
ATmega48A
ATmega48PA
ATmega88A
ATmega88PA
Flash Size
(32Kbytes)
(32Kbytes)
16K words
16K words
ATmega48A/PA/88A/PA/168A/PA/328/P
(4Kbytes)
(4Kbytes)
(8Kbytes)
(8Kbytes)
(16Kbytes)
(16Kbytes)
2K words
2K words
4K words
4K words
8K words
8K words
EEPROM
256bytes
256bytes
512bytes
512bytes
Size
Page Size
32 words
32 words
32 words
32 words
64 words
64 words
64 words
64 words
4bytes
4bytes
4bytes
4bytes
Page
Signature Bytes Address
0x000
0x1E
0x1E
0x1E
Size
PCWORD
EEA[1:0]
EEA[1:0]
EEA[1:0]
EEA[1:0]
PCWORD
PC[4:0]
PC[4:0]
PC[4:0]
PC[4:0]
PC[5:0]
PC[5:0]
PC[5:0]
PC[5:0]
0x001
0x94
0x95
0x95
Pages
No. of
128
128
Pages
64
64
No. of
128
128
128
128
256
256
64
64
PCPAGE
EEA[7:2]
EEA[7:2]
EEA[8:2]
EEA[8:2]
PCPAGE
PC[10:5]
PC[10:5]
PC[11:5]
PC[11:5]
PC[12:6]
PC[12:6]
PC[13:6]
PC[13:6]
0x002
0x0B
0x14
0x0F
EEAMSB
PCMSB
10
10
11
11
12
12
13
13
7
7
8
8
302

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