ATmega3290A Atmel Corporation, ATmega3290A Datasheet - Page 365

• Manufacturer Part Number: ATmega3290A
• Manufacturer: Atmel Corporation

Specifications of ATmega3290A

• Flash (kbytes): 32 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 20 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): 2
• Eeprom (bytes): 1024
• 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

30.1.3.1
30.1.4
8284D–AVR–6/11
Power-down Supply Current
Example 1
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
add 13.1% for the USART0, 13.0% for the SPI, and 13.2% for the TIMER1 module. Reading
from
F = 1MHz. The total current consumption in idle mode with USART0, TIMER1, and SPI enabled,
gives:
Figure 30-11. ATmega169A: Power-down Supply Current vs. V
I
CC
total
Figure
≈
0.09mA
1.4
1.2
0.8
0.6
0.4
0.2
1
0
CC
1.5
30-6, we find that the idle current consumption is ~0.09 mA at V
= 3.0V and F = 1MHz. From
•
(
1
+
0.131
2
+
0.13
2.5
+
0.132
3
)
≈
0.13mA
Table
V
CC
3.5
(V)
30-2, second column, we see that we need to
4
4.5
CC
(Watchdog Timer Disabled)
5
5.5
CC
-45 °C
85 °C
25 °C
= 3.0V and
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