ATmega6490 Atmel Corporation, ATmega6490 Datasheet - Page 340
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ATmega6490
Manufacturer Part Number
ATmega6490
Description
Manufacturer
Atmel Corporation
Specifications of ATmega6490
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
69
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Segment Lcd
160
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
No
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
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
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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29.0.3
340
ATmega329/3290/649/6490
Supply Current of I/O modules
Figure 29-10. Idle Supply Current vs. V
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
details.
Table 29-1.
Table 29-2.
It is possible to calculate the typical current consumption based on the numbers from
for other V
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRLCD
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRLCD
35
30
25
20
15
10
5
0
1.5
CC
and frequency settings than listed in
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
Additional Current consumption
compared to Active with external
clock
(see
2
V
CC
17µA
9µA
10µA
5µA
6µA
Figure 29-1
= 2V, F = 1MHz
2.5
5.4%
2.7%
2.9%
1.5%
1.7%
and
3
Figure
CC
V
CC
(32kHz External Oscillator)
3.5
V
Typical numbers
(V)
CC
116µA
59µA
62µA
33µA
36µA
29-2)
= 3V, F = 4MHz
Table
4
“Power Reduction Register” on page 37
Additional Current consumption
compared to Idle with external
clock
(see
29-1.
Figure 29-6
4.5
V
16.8%
8.5%
9.0%
4.8%
5.2%
CC
562µA
257µA
146µA
248µA
135µA
5
and
= 5V, F = 8MHz
Figure
5.5
-40 °C
85 °C
25 °C
29-7)
2552K–AVR–04/11
Table 29-2
for
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