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PIC18F242 датащи(PDF) 18 Page - Microchip Technology |
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PIC18F242 датащи(HTML) 18 Page - Microchip Technology |
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18 / 332 page ![]() PIC18FXX2 DS39564C-page 16 © 2006 Microchip Technology Inc. PORTD is a bi-directional I/O port, or a Parallel Slave Port (PSP) for interfacing to a microprocessor port. These pins have TTL input buffers when PSP module is enabled. RD0/PSP0 19 21 38 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD1/PSP1 20 22 39 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD2/PSP2 21 23 40 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD3/PSP3 22 24 41 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD4/PSP4 27 30 2 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD5/PSP5 28 31 3 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD6/PSP6 29 32 4 I/O ST TTL Digital I/O. Parallel Slave Port Data. RD7/PSP7 30 33 5 I/O ST TTL Digital I/O. Parallel Slave Port Data. PORTE is a bi-directional I/O port. RE0/RD/AN5 RE0 RD AN5 8 9 25 I/O ST TTL Analog Digital I/O. Read control for parallel slave port (see also WR and CS pins). Analog input 5. RE1/WR/AN6 RE1 WR AN6 9 10 26 I/O ST TTL Analog Digital I/O. Write control for parallel slave port (see CS and RD pins). Analog input 6. RE2/CS/AN7 RE2 CS AN7 10 11 27 I/O ST TTL Analog Digital I/O. Chip Select control for parallel slave port (see related RD and WR). Analog input 7. VSS 12, 31 13, 34 6, 29 P — Ground reference for logic and I/O pins. VDD 11, 32 12, 35 7, 28 P — Positive supply for logic and I/O pins. TABLE 1-3: PIC18F4X2 PINOUT I/O DESCRIPTIONS (CONTINUED) Pin Name Pin Number Pin Type Buffer Type Description DIP PLCC 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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