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PIC16F505-E/MS 数据表(PDF) 15 Page - Microchip Technology |
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PIC16F505-E/MS 数据表(HTML) 15 Page - Microchip Technology |
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15 / 100 page  © 2007 Microchip Technology Inc. Preliminary DS41236C-page 13 PIC12F508/509/16F505 TABLE 3-3: PIC16F505 PINOUT DESCRIPTION Name Function Input Type Output Type Description RB0/ICSPDAT RB0 TTL CMOS Bidirectional I/O pin. Can be software programmed for internal weak pull-up and wake-up from Sleep on pin change. ICSPDAT ST CMOS In-Circuit Serial Programming™ data pin. RB1/ICSPCLK RB1 TTL CMOS Bidirectional I/O pin. Can be software programmed for internal weak pull-up and wake-up from Sleep on pin change. ICSPCLK ST CMOS In-Circuit Serial Programming clock pin. RB2 RB2 TTL CMOS Bidirectional I/O pin. RB3/MCLR/VPP RB3 TTL — Input port. Can be software programmed for internal weak pull-up and wake-up from Sleep on pin change. MCLR ST — Master Clear (Reset). When configured as MCLR, this pin is an active-low Reset to the device. Voltage on MCLR/VPP must not exceed VDD during normal device operation or the device will enter Programming mode. Weak pull-up always on if configured as MCLR. VPP HV — Programming voltage input. RB4/OSC2/CLKOUT RB4 TTL CMOS Bidirectional I/O pin. Can be software programmed for internal weak pull-up and wake-up from Sleep on pin change. OSC2 — XTAL Oscillator crystal output. Connections to crystal or resonator in Crystal Oscillator mode (XT, HS and LP modes only). CLKOUT — CMOS In EXTRC and INTRC modes, the pin output can be configured for CLKOUT, which has 1/4 the frequency of OSC1 and denotes the instruction cycle rate. RB5/OSC1/CLKIN RB5 TTL CMOS Bidirectional I/O pin. OSC1 XTAL — Crystal input. CLKIN ST — External clock source input. RC0 RC0 TTL CMOS Bidirectional I/O pin. RC1 RC1 TTL CMOS Bidirectional I/O pin. RC2 RC2 TTL CMOS Bidirectional I/O pin. RC3 RC3 TTL CMOS Bidirectional I/O pin. RC4 RC4 TTL CMOS Bidirectional I/O pin. RC5/T0CKI RC5 TTL CMOS Bidirectional I/O pin. T0CKI ST — Clock input to TMR0. VDD VDD — P Positive supply for logic and I/O pins. VSS VSS — P Ground reference for logic and I/O pins. Legend: I = Input, O = Output, I/O = Input/Output, P = Power, — = Not used, TTL = TTL input, ST = Schmitt Trigger input, HV = High Voltage |
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