ATMEGA168P-20MQ Atmel, ATMEGA168P-20MQ Datasheet - Page 352
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ATMEGA168P-20MQ
Manufacturer Part Number
ATMEGA168P-20MQ
Description
MCU AVR 16K FLASH 20MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA168P-20MQ
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Example
29.2.4
8025L–AVR–7/10
Power-down Supply Current
Table 29-4.
It is possible to calculate the typical current consumption based on the numbers from
on page 351
Calculate the expected current consumption in idle mode with TIMER1, ADC, and SPI enabled
at V
to add 17.0% for the TIMER1, 17.6% for the ADC, and 17.5% for the SPI module. Reading from
Figure 29-52 on page 349
and F = 1MHz. The total current consumption in idle mode with TIMER1, ADC, and SPI enabled,
gives:
Figure 29-57. Power-Down Supply Current vs. V
PRR bit
PRTIM1
PRTIM0
PRSPI
PRADC
CC
= 2.0V and F = 1MHz. From
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2
1
0
for other V
1.5
Additional Current Consumption (percentage) in Active and Idle mode
Additional Current consumption
compared to Active with external
clock (see
346
347)
2.8%
0.8%
3.0%
2.9%
and
I
2
CC
CC
, we find that the idle current consumption is ~0.055 mA at V
total
Figure 29-48 on page
and frequency settings than listed in
≈
Figure 29-47 on page
0.055 mA (1 + 0.170 + 0.176 + 0.175)
2.5
Table 29-4 on page
⋅
3
V
CC
3.5
(V)
CC
(Watchdog Timer Disabled).
ATmega48P/88P/168P
Additional Current consumption
compared to Idle with external
clock (see
349
349)
17.0%
4.6%
17.5%
17.6%
4
351, third column, we see that we need
and
Figure 29-53 on page
≈
4.5
Table 29-3 on page
Figure 29-52 on page
0.084 mA
5
5.5
-40 °C
85 °C
25 °C
351.
Table 29-4
CC
= 2.0V
352
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