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PIC18F23K20 датащи(PDF) 16 Page - Microchip Technology |
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PIC18F23K20 датащи(HTML) 16 Page - Microchip Technology |
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16 / 456 page ![]() PIC18F2XK20/4XK20 DS41303G-page 16 2010 Microchip Technology Inc. TABLE 1-2: PIC18F2XK20 PINOUT I/O DESCRIPTIONS Pin Name Pin Number Pin Type Buffer Type Description PDIP, SOIC QFN MCLR/VPP/RE3 MCLR VPP RE3 126 I P I ST ST Master Clear (input) or programming voltage (input) Active-low Master Clear (device Reset) input Programming voltage input Digital input OSC1/CLKIN/RA7 OSC1 CLKIN RA7 96 I I I/O ST CMOS TTL Oscillator crystal or external clock input Oscillator crystal input or external clock source input ST buffer when configured in RC mode; CMOS otherwise External clock source input. Always associated with pin function OSC1. (See related OSC1/CLKIN, OSC2/CLKOUT pins) General purpose I/O pin OSC2/CLKOUT/RA6 OSC2 CLKOUT RA6 10 7 O O I/O — — TTL Oscillator crystal or clock output Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode In RC mode, OSC2 pin outputs CLKOUT which has 1/4 the frequency of OSC1 and denotes the instruction cycle rate General purpose I/O pin Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels I = Input O = Output P = Power Note 1: Default assignment for CCP2 when Configuration bit CCP2MX is set. 2: Alternate assignment for CCP2 when Configuration bit CCP2MX is cleared. |
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