ATMEGA168V-10MQ Atmel, ATMEGA168V-10MQ Datasheet - Page 32
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ATMEGA168V-10MQ
Manufacturer Part Number
ATMEGA168V-10MQ
Description
MCU AVR 16K FLASH 10MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA168V-10MQ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8.5
8.6
32
Low Frequency Crystal Oscillator
Calibrated Internal RC Oscillator
ATmega48/88/168
The device can utilize a 32.768 kHz watch crystal as clock source by a dedicated Low Fre-
quency Crystal Oscillator. The crystal should be connected as shown in
Oscillator is selected, start-up times are determined by the SUT Fuses and CKSEL0 as shown in
Table
Table 8-7.
Note:
By default, the Internal RC OScillator provides an approximate 8.0 MHz clock. Though voltage
and temperature dependent, this clock can be very accurately calibrated by the user. The device
is shipped with the CKDIV8 Fuse programmed. See
more details.
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table
the pre-programmed calibration value into the OSCCAL Register and thereby automatically cal-
ibrates the RC Oscillator. The accuracy of this calibration is shown as Factory calibration in
Table 28-1 on page
By changing the OSCCAL register from SW, see
page
The accuracy of this calibration is shown as User calibration in
When this Oscillator is used as the chip clock, the Watchdog Oscillator will still be used for the
Watchdog Timer and for the Reset Time-out. For more information on the pre-programmed cali-
bration value, see the section
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
BOD enabled
Fast rising power
Slowly rising power
36, it is possible to get a higher calibration accuracy than by using the factory calibration.
8-7.
8-8. If selected, it will operate with no external components. During reset, hardware loads
1. These options should only be used if frequency stability at start-up is not important for the
application.
Start-up Times for the Low Frequency Crystal Oscillator Clock Selection
305.
Start-up Time from
“Calibration Byte” on page
Power-down and
Reserved
Reserved
Power-save
32K CK
32K CK
32K CK
1K CK
1K CK
1K CK
“OSCCAL – Oscillator Calibration Register” on
Additional Delay
“System Clock Prescaler” on page 35
14CK + 4.1 ms
14CK + 65 ms
14CK + 4.1 ms
14CK + 65 ms
(V
from Reset
287.
CC
14CK
14CK
= 5.0V)
Table 28-1 on page
(1)
(1)
(1)
Figure
CKSEL0
0
0
0
0
1
1
1
1
8-2. When this
2545S–AVR–07/10
305.
SUT1..0
00
01
10
00
01
10
11
11
for
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