ATmega3250A Atmel Corporation, ATmega3250A Datasheet - Page 337

• Manufacturer Part Number: ATmega3250A
• Manufacturer: Atmel Corporation

Specifications of ATmega3250A

• 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: 25
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• 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

29.1.3
8285D–AVR–06/11
ATmega165A: Supply Current of I/O modules
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 29-10. ATmega165A: 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.
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
9
8
7
6
5
4
3
2
1
0
1.5
ATmega165A Additional Current Consumption for the different I/O modules
(absolute values)
ATmega165A: Additional Current Consumption (percentage) in Active and Idle
mode
Additional Current consumption
compared to Active with external clock
(see
Typical numbers
7 µA
6.9 µA
6.6 µA
7 µA
V
Figure 29-1
2
CC
= 2V, F = 1MHz
2.5
and
3.2%
3.4%
3.3%
3.4%
Figure
3
29-2)
V
44 µA
43.5 µA
47 µA
47 µA
CC
3.5
V
(V)
CC
= 3V, F = 4MHz
”Power Reduction Register” on page 41
CC
4
Additional Current consumption
compared to Idle with external clock
(see
(32kHz Watch Crystal)
Figure 29-6
4.5
195 µA
210 µA
205 µA
206 µA
5
13.1%
13.0%
13.2%
12.7%
and
V
CC
Figure
= 5V, F = 8MHz
5.5
-45 °C
85 °C
25 °C
29-7)
337
for