ATMEGA16A-AUR Atmel, ATMEGA16A-AUR Datasheet - Page 28
ATMEGA16A-AUR
Manufacturer Part Number
ATMEGA16A-AUR
Description
MCU AVR 16KB FLASH 16MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16A-MU.pdf
(352 pages)
Specifications of ATMEGA16A-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA16A-AUR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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8.6
28
External RC Oscillator
ATmega16A
Table 8-5.
Note:
For timing insensitive applications, the external RC configuration shown in
used. The frequency is roughly estimated by the equation f = 1/(3RC). C should be at least 22
pF. By programming the CKOPT Fuse, the user can enable an internal 36 pF capacitor between
XTAL1 and GND, thereby removing the need for an external capacitor. For more information on
Oscillator operation and details on how to choose R and C, refer to the External RC Oscillator
application note.
Figure 8-3.
The Oscillator can operate in four different modes, each optimized for a specific frequency
range. The operating mode is selected by the fuses CKSEL3:0 as shown in
Table 8-6.
When this Oscillator is selected, start-up times are determined by the SUT Fuses as shown in
Table
SUT1:0
00
01
10
11
8-7.
1. These options should only be used if frequency stability at start-up is not important for the
application.
CKSEL3:0
Start-up Times for the Low-frequency Crystal Oscillator Clock Selection
Start-up Time from
External RC Configuration
External RC Oscillator Operating Modes
Power-down and
0101
0110
0111
1000
Power-save
1K CK
1K CK
32K CK
(1)
(1)
C
R
V
CC
Additional Delay
(V
from Reset
NC
CC
4.1 ms
65 ms
65 ms
= 5.0V)
Reserved
Frequency Range (MHz)
XTAL2
XTAL1
GND
Recommended Usage
Fast rising power or BOD enabled
Slowly rising power
Stable frequency at start-up
8.0 - 12.0
0.1 ≤ 0.9
0.9 - 3.0
3.0 - 8.0
Table
Figure 8-3
8154B–AVR–07/09
8-6.
can be
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