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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT90PWM2 датащи(PDF) 51 Page - ATMEL Corporation |
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AT90PWM2 датащи(HTML) 51 Page - ATMEL Corporation |
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51 / 365 page  51 4317K–AVR–03/2013 AT90PWM2/3/2B/3B 1. When the BOD is enabled (by programming the BODLEVEL [2..0] Fuse). 2. When the bandgap reference is connected to the Analog Comparator (by setting the ACBG bit in ACSR). 3. When the ADC is enabled. 4. When the DAC is enabled. Thus, when the BOD is not enabled, after setting the ACBG bit or enabling the ADC or the DAC, the user must always allow the reference to start up before the output from the Analog Compar- ator or ADC or DAC is used. To reduce power consumption in Power-down mode, the user can avoid the three conditions above to ensure that the reference is turned off before entering Power-down mode. 9.1.2 Voltage Reference Characteristics Note: 1. Values are guidelines only. Table 9-4. Internal Voltage Reference Characteristics (1) Symbol Parameter Condition Min. Typ. Max. Units VBG Bandgap reference voltage 1.1 V tBG Bandgap reference start-up time 40 µs IBG Bandgap reference current consumption 15 µA |
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