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PIC18F23K20-E/ML 数据表(PDF) 21 Page - Microchip Technology |
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PIC18F23K20-E/ML 数据表(HTML) 21 Page - Microchip Technology |
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21 / 456 page  2010 Microchip Technology Inc. DS41303G-page 21 PIC18F2XK20/4XK20 PORTA is a bidirectional I/O port. RA0/AN0/C12IN0- RA0 AN0 C12IN0- 219 19 I/O I I TTL Analog Analog Digital I/O Analog input 0, ADC channel 0 Comparator C1 and C2 inverting input RA1/AN1/C12IN0- RA1 AN1 C12IN0- 320 20 I/O I I TTL Analog Analog Digital I/O Analog input 1, ADC channel 1 Comparator C1 and C2 inverting input RA2/AN2/VREF-/CVREF/ C2IN+ RA2 AN2 VREF- CVREF C2IN+ 421 21 I/O I I O I TTL Analog Analog Analog Analog Digital I/O Analog input 2, ADC channel 2 A/D reference voltage (low) input Comparator reference voltage output Comparator C2 non-inverting input RA3/AN3/VREF+/ C1IN+ RA3 AN3 VREF+ C1IN+ 522 22 I/O I I I TTL Analog Analog Analog Digital I/O Analog input 3, ADC channel 3 A/D reference voltage (high) input Comparator C1 non-inverting input RA4/T0CKI/C1OUT RA4 T0CKI C1OUT 623 23 I/O I O ST ST CMOS Digital I/O Timer0 external clock input Comparator C1 output RA5/AN4/SS/HLVDIN/ C2OUT RA5 AN4 SS HLVDIN C2OUT 724 24 I/O I I I O TTL Analog TTL Analog CMOS Digital I/O Analog input 4, ADC channel 4 SPI slave select input High/Low-Voltage Detect input Comparator C2 output RA6 See the OSC2/CLKOUT/RA6 pin RA7 See the OSC1/CLKIN/RA7 pin TABLE 1-3: PIC18F4XK20 PINOUT I/O DESCRIPTIONS (CONTINUED) Pin Name Pin Number Pin Type Buffer Type Description PDIP QFN TQFP 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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