ATmega168A Atmel Corporation, ATmega168A Datasheet - Page 300

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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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8271D–AVR–05/11
Table 28-7.
Notes:
Table 28-8.
Notes:
High Fuse Byte
EESAVE
BODLEVEL2
BODLEVEL1
BODLEVEL0
High Fuse Byte
RSTDISBL
DWEN
SPIEN
WDTON
EESAVE
BOOTSZ1
BOOTSZ0
BOOTRST
(2)
1. See
2. The SPIEN Fuse is not accessible in serial programming mode.
3. See
4. See
1. See
2. The SPIEN Fuse is not accessible in serial programming mode.
3. See
4. The default value of BOOTSZ[1:0] results in maximum Boot Size. See
(3)
(1)
page
(4)
(4)
(4)
Fuse High Byte for ATmega48A/48PA/88A/88PA/168A/168PA (Continued)
Fuse High Byte for ATmega328/328P
”Alternate Functions of Port C” on page 87
”WDTCSR – Watchdog Timer Control Register” on page 56
Table 29-13 on page 324
”Alternate Functions of Port C” on page 87
”WDTCSR – Watchdog Timer Control Register” on page 56
304.
ATmega48A/PA/88A/PA/168A/PA/328/P
Bit No
Bit No
3
2
1
0
7
6
5
4
3
2
1
0
Description
EEPROM memory is preserved
through the Chip Erase
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
Description
External Reset Disable
debugWIRE Enable
Enable Serial Program and
Data Downloading
Watchdog Timer Always On
EEPROM memory is
preserved through the Chip
Erase
Select Boot Size
(see
Table 27-7 on page
Table 27-10 on page 293
Table 27-13 on page 294
for details)
Select Boot Size
(see
Table 27-7 on page
Table 27-10 on page 293
Table 27-13 on page 294
for details)
Select Reset Vector
for BODLEVEL Fuse decoding.
for description of RSTDISBL Fuse.
for description of RSTDISBL Fuse.
292,
292,
and
and
Default Value
1 (unprogrammed)
1 (unprogrammed)
0 (programmed, SPI
programming enabled)
1 (unprogrammed)
1 (unprogrammed), EEPROM
not reserved
0 (programmed)
0 (programmed)
1 (unprogrammed)
for details.
for details.
Default Value
1 (unprogrammed),
EEPROM not reserved
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
”Pin Name Mapping” on
(4)
(4)
300

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