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PIC18F4539-E/MLSQTP датащи(PDF) 17 Page - Microchip Technology |
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PIC18F4539-E/MLSQTP датащи(HTML) 17 Page - Microchip Technology |
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17 / 322 page ![]() 2002 Microchip Technology Inc. Preliminary DS30485A-page 15 PIC18FXX39 PORTB is a bi-directional I/O port. PORTB can be software programmed for internal weak pull-ups on all inputs. RB0/INT0 RB0 INT0 33 9 8 I/O I TTL ST Digital I/O. External interrupt 0. RB1/INT1 RB1 INT1 34 10 9 I/O I TTL ST Digital I/O. External interrupt 1. RB2/INT2 RB2 INT2 35 11 10 I/O I TTL ST Digital I/O. External interrupt 2. RB3 36 12 11 I/O TTL Digital I/O. RB4 37 14 14 I/O TTL Digital I/O. Interrupt-on-change pin. RB5/PGM RB5 PGM 38 15 15 I/O I/O TTL ST Digital I/O. Interrupt-on-change pin. Low Voltage ICSP programming enable pin. RB6/PGC RB6 PGC 39 16 16 I/O I/O TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSP programming clock pin. RB7/PGD RB7 PGD 40 17 17 I/O I/O TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSP programming data pin. TABLE 1-3: PIC18F4X39 PINOUT I/O DESCRIPTIONS (CONTINUED) Pin Name Pin Number Pin Type Buffer Type Description DIP 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 OD = Open Drain (no P diode to VDD) |
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