ATMEGA3250P-20AUR Atmel, ATMEGA3250P-20AUR Datasheet - Page 319

• Manufacturer Part Number: ATMEGA3250P-20AUR
• Description: MCU AVR 32K FLASH 20MHZ 100TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3250P-20AUR

• 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: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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

27.3.1
27.4
319
Power-down Supply Current
ATmega325P/3250P
Example
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
USART0, 5.9% for the SPI, and 2.6% for the TIMER1 module. From
the idle current consumption is ~0.21mA at V
sumption in idle mode with USART0, TIMER1, and SPI enabled, gives:
Figure 27-9. Power-down Supply Current vs. V
I
CC
total
≈
0,21mA
CC
2.5
1.5
0.5
3
2
1
0
and frequency settings than listed in
CC
1.5
•
= 3.0V and F = 1MHz.
(
1
+
0,049
2
+
0,059
POWER-DOWN SUPPLY CURRENT vs. V
2.5
+
0,026
WATCHDOG TIMER DISABLED
3
)
Table 27-2
≈
0,24mA
V
CC
CC
3.5
(V)
CC
= 3.0V and F = 1MHz. The total current con-
Table
(Watchdog Timer Disabled)
shows that we need to add 4.9% for the
4
27-1.
4.5
CC
Figure
5
27-5, we find that
5.5
-40 °C
8023F–AVR–07/09
85 °C
25 °C
Table 27-2