ATMEGA6450A-AU Atmel, ATMEGA6450A-AU Datasheet - Page 558
ATMEGA6450A-AU
Manufacturer Part Number
ATMEGA6450A-AU
Description
IC MCU AVR 64K FLASH 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA6450A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
100-TFQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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29.8.3.1
558
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Example 1
are controlled by the Power Reduction Register. See
page 46
Table 29-15. Additional Current Consumption for the different I/O modules (absolute values)
Table 29-16. Additional Current Consumption (percentage) in Active and Idle mode
It is possible to calculate the typical current consumption based on the numbers from
14
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
to add 49.8% for the USART0, 48.6% for the SPI, and 46.3% for the TIMER1 module. Reading
from
F = 1MHz. The total current consumption in idle mode with USART0, TIMER1, and SPI enabled,
gives:
I
CC
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
for other V
total
Figure
≈
0.13mA
for details.
29-371, we find that the idle current consumption is ~0.13 mA at V
CC
CC
•
= 3.0V and F = 1MHz. From
and frequency settings than listed in
(
Additional Current consumption
compared to Active with external clock
(see
1
Typical numbers
23.75 µA
36.7 µA
32.1 µA
24.2 µA
+
0.498
V
Figure 29-365
CC
= 2V, F = 1MHz
+
0.486
11.9%
13.2%
12.8%
12.1%
+
and
0.463
Figure
)
≈
0.45mA
Table
212.1 µA
210.4µA
213 µA
217 µA
29-366)
V
CC
29-14, second column, we see that we need
= 3V, F = 4MHz
Table
”PRR – Power Reduction Register” on
Additional Current consumption
compared to Idle with external clock
(see
29-13.
Figure 29-370
938 µA
939 µA
940 µA
940 µA
45.7%
49.8%
48.6%
46.3%
V
CC
and
= 5V, F = 8MHz
Figure
CC
8285B–AVR–03/11
= 3.0V and
Table 29-
29-371)
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