ATmega169P Atmel Corporation, ATmega169P Datasheet - Page 344

• Manufacturer Part Number: ATmega169P
• Manufacturer: Atmel Corporation

Specifications of ATmega169P

• Flash (kbytes): 16 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• 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): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• 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

29.3.0.1
29.4
8018P–AVR–08/10
Power-down Supply Current
Example 1
Table 29-2.
It is possible to calculate the typical current consumption based on the numbers from
on page 343
Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI
enabled at V
that we need to add 12.4% for the USART0, 10.8% for the SPI, and 18.6% for the TIMER1 mod-
ule. Reading from
mA at V
TIMER1, and SPI enabled, gives:
Figure 29-11. Power-down Supply Current vs. V
I
CC
PRR bit
PRSPI
PRTIM1
PRLCD
total
≈
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
0.18mA
CC
1.5
= 3.0V and F = 1 MHz. The total current consumption in idle mode with USART0,
CC
for other V
Additional Current Consumption (percentage) in Active and Idle mode
•
= 3.0V and F = 1 MHz. From
(
Additional Current consumption
compared to Active with external clock
(see
Figure 29-2 on page
1
Figure 29-6 on page
2.0
+
0.124
Figure 29-1 on page 338
CC
+
and frequency settings than listed in
0.108
2.5
12.5%
3.2%
5.6%
+
0.186
339)
3.0
341, we find that the idle current consumption is ~0.18
)
≈
0.26mA
V
and
Table 29-2 on page
CC
3.5
(V)
CC
(Watchdog Timer Disabled)
4.0
Additional Current consumption
compared to Idle with external clock
(see
Figure 29-7 on page
Figure 29-6 on page 341
Table 29-1 on page
4.5
343, second column, we see
ATmega169P
10.8%
18.6%
41.7%
5.0
341)
5.5
343.
Table 29-2
and
-40°C
85°C
25°C
344