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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F882-I датащи(PDF) 44 Page - Microchip Technology |
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PIC16F882-I датащи(HTML) 44 Page - Microchip Technology |
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44 / 328 page  PIC16F882/883/884/886/887 DS41291F-page 42 © 2009 Microchip Technology Inc. 3.2.3 PIN DESCRIPTIONS AND DIAGRAMS Each PORTA pin is multiplexed with other functions. The pins and their combined functions are briefly described here. For specific information about individual functions such as the comparator or the A/D Converter (ADC), refer to the appropriate section in this data sheet. 3.2.3.1 RA0/AN0/ULPWU/C12IN0- Figure 3-1 shows the diagram for this pin. This pin is configurable to function as one of the following: • a general purpose I/O • an analog input for the ADC • a negative analog input to Comparator C1 or C2 • an analog input for the Ultra Low-Power Wake-up FIGURE 3-1: BLOCK DIAGRAM OF RA0 I/O Pin VDD VSS D Q CK Q D Q CK Q RD WR WR RD To Comparator Analog(1) Input Mode 01 IULP Data Bus PORTA TRISA TRISA PORTA Note 1: ANSEL determines Analog Input mode. - +VTRG ULPWUE To A/D Converter VSS |
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