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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F716 датащи(PDF) 39 Page - Microchip Technology |
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PIC16F716 датащи(HTML) 39 Page - Microchip Technology |
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39 / 136 page  © 2007 Microchip Technology Inc. DS41206B-page 37 PIC16F716 7.0 ANALOG-TO-DIGITAL CONVERTER (ADC) MODULE The Analog-to-Digital Converter (ADC) allows conversion of an analog input signal to a 8-bit binary representation of that signal. This device uses analog inputs, which are multiplexed into a single sample and hold circuit. The output of the sample and hold is connected to the input of the converter. The converter generates a 8-bit binary result via successive approximation and stores the conversion result into the ADC result register (ADRES). The ADC voltage reference is software selectable to either VDD or a voltage applied to the external reference pins. The ADC can generate an interrupt upon completion of a conversion. This interrupt can be used to wake-up the device from Sleep. Figure 7-1 shows the block diagram of the ADC. FIGURE 7-1: ADC BLOCK DIAGRAM RA0/AN0 RA1/AN1 RA2/AN2 VDD VREF ADON GO/DONE CHS ADRES 8 VSS RA3/VREF/AN3 000 001 010 011 PFCG<2:0> (ADCON1 register) ADC |
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