ATMEGA329-16MI Atmel, ATMEGA329-16MI Datasheet - Page 30
![IC AVR MCU 32K 16MHZ 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA329-16MI
Manufacturer Part Number
ATMEGA329-16MI
Description
IC AVR MCU 32K 16MHZ 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA329-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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ATmega329/3290/649/6490
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table 8-7 on page
hardware loads the pre-programmed calibration value into the OSCCAL Register and thereby
automatically calibrates the RC Oscillator. The accuracy of this calibration is shown as Factory
calibration in
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
Table 8-7.
Note:
When this Oscillator is selected, start-up times are determined by the SUT Fuses as shown in
Table 8-8 on page
Table 8-8.
Note:
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
32, it is possible to get a higher calibration accuracy than by using the factory calibration.
1. The device is shipped with this option selected.
2. The frequency ranges are preliminary values.
3. If 8MHz frequency exceeds the specification of the device (depends on V
1. The device is shipped with this option selected
Fuse can be programmed in order to divide the internal frequency by 8.
Table 28-2 on page
Frequency Range
Internal Calibrated RC Oscillator Operating Modes
Start-up times for the internal calibrated RC Oscillator clock selection
30.
30. If selected, it will operate with no external components. During reset,
7.3 - 8.1
Start-up Time from Power-
down and Power-save
“Calibration Byte” on page
(2)
329.
(MHz)
Reserved
6 CK
6 CK
6 CK
“OSCCAL – Oscillator Calibration Register” on
.
Additional Delay from
Reset (V
296.
14CK + 65ms
14CK + 4.1ms
14CK
Table 28-2 on page
CC
(1)(3)
CKSEL3..0
= 5.0V)
0010
(1)
CC
SUT1..0
), the CKDIV8
00
01
10
11
2552K–AVR–04/11
329.
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