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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega325P датащи(PDF) 319 Page - ATMEL Corporation |
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ATmega325P датащи(HTML) 319 Page - ATMEL Corporation |
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319 / 364 page  319 8023F–AVR–07/09 ATmega325P/3250P It is possible to calculate the typical current consumption based on the numbers from Table 27-2 for other V CC and frequency settings than listed in Table 27-1. 27.3.1 Example Calculate the expected current consumption in idle mode with USART0, TIMER1, and SPI enabled at V CC = 3.0V and F = 1MHz. Table 27-2 shows that we need to add 4.9% for the USART0, 5.9% for the SPI, and 2.6% for the TIMER1 module. From Figure 27-5, we find that the idle current consumption is ~0.21mA at V CC = 3.0V and F = 1MHz. The total current con- sumption in idle mode with USART0, TIMER1, and SPI enabled, gives: 27.4 Power-down Supply Current Figure 27-9. Power-down Supply Current vs. V CC (Watchdog Timer Disabled) ICCtotal 0,21 mA 1 0,049 0,059 0,026 +++ () • 0,24 mA ≈≈ POWER-DOWN SUPPLY CURRENT vs. VCC WATCHDOG TIMER DISABLED 85 °C 25 °C -40 °C 0 0.5 1 1.5 2 2.5 3 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VCC (V) |
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