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PIC18F14K22-E/ML 数据表(PDF) 13 Page - Microchip Technology |
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PIC18F14K22-E/ML 数据表(HTML) 13 Page - Microchip Technology |
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13 / 388 page  2010 Microchip Technology Inc. Preliminary DS41365D-page 13 PIC18F1XK22/LF1XK22 TABLE 1-2: PIC18F1XK22/LF1XK22 PIN SUMMARY Pin Name Pin Number Pin Type Buffer Type Description RA0/AN0/CVREF/VREF-/C1IN+/INT0/PGD RA0 AN0 CVREF VREF- C1IN+ INT0 PGD 19 16 I/O I O I I I I/O TTL Analog Analog Analog Analog ST ST Digital I/O ADC channel 0 DAC reference voltage output ADC and DAC reference voltage (low) input Comparator C1 non-inverting input External interrupt 0 ICSP™ programming data pin RA1/AN1/C12IN0-/VREF+/INT1/PGC RA1 AN1 C12IN0- VREF+ INT1 PGC 18 15 I/O I 1 I I I/O TTL Analog Analog Analog ST ST Digital I/O ADC channel 1 Comparator C1 and C2 non-inverting input ADC and DAC reference voltage (high) input External interrupt 1 ICSP™ programming clock pin RA2/AN2/C1OUT/T0CKI/INT2/SRQ RA2 AN2 C1OUT T0CKI INT2 SRQ 17 14 I/O I — I I O ST Analog CMOS ST ST CMOS Digital I/O ADC channel 2 Comparator C1 output Timer0 external clock input External interrupt 2 SR latch output RA3/MCLR/VPP RA3 MCLR VPP 41 I I P ST ST — Digital input Active-low Master Clear with internal pull-up High voltage programming input RA4/AN3/OSC2/CLKOUT RA4 AN3 OSC2 CLKOUT 320 I/O I O O TTL Analog XTAL CMOS Digital I/O ADC channel 3 Oscillator crystal output. Connect 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 RA5/OSC1/CLKIN/T13CKI RA5 OSC1 CLKIN T13CKI 219 I/O I I I TTL XTAL CMOS ST Digital I/O Oscillator crystal input or external clock input ST buffer when configured in RC mode; analog other wise External clock source input. Always associated with the pin function OSC1 (See related OSC1/CLKIN, OSC2, CLKOUT pins Timer0 and Timer3 external clock input RB4/AN10/SDI/SDA RB4 AN10 SDI SDA 13 10 I/O I I I/O TTL Analog ST ST Digital I/O ADC channel 10 SPI data in I2C™ data I/O RB5/AN11/RX/DT RB5 AN11 RX DT 12 9 I/O I I I/O TLL Analog ST ST Digital I/O ADC channel 11 EUSART asynchronous receive EUSART synchronous data (see related RX/TX) Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input I = Input O = Output P = Power XTAL= Crystal Oscillator |
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