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PIC12F635ESL 数据表(PDF) 16 Page - Microchip Technology |
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PIC12F635ESL 数据表(HTML) 16 Page - Microchip Technology |
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16 / 234 page  PIC12F635/PIC16F636/639 DS41232D-page 14 © 2007 Microchip Technology Inc. TABLE 1-3: PIC16F639 PINOUT DESCRIPTIONS Name Function Input Type Output Type Description LCCOM LCCOM AN — Common reference for analog inputs. LCX LCX AN — 125 kHz analog X channel input. LCY LCY AN — 125 kHz analog Y channel input. LCZ LCZ AN — 125 kHz analog Z channel input. RA0/C1IN+/ICSPDAT/ULPWU RA0 TTL — General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up/pull-down. Selectable Ultra Low-Power Wake-up pin. C1IN+ AN — Comparator1 input – positive. ICSPDAT TTL CMOS Serial Programming Data IO. ULPWU AN — Ultra Low-Power Wake-up input. RA1/C1IN-/VREF/ICSPCLK RA1 TTL CMOS General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up/pull-down. C1IN- AN — Comparator1 input – negative. VREF AN — External voltage reference ICSPCLK ST — Serial Programming Clock. RA2/T0CKI/INT/C1OUT RA2 ST CMOS General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up/pull-down. T0CKI ST — External clock for Timer0. INT ST — External Interrupt. C1OUT — CMOS Comparator1 output. RA3/MCLR/VPP RA3 TTL — General purpose input. Individually controlled interrupt-on-change. MCLR ST — Master Clear Reset. Pull-up enabled when configured as MCLR. VPP HV — Programming voltage. RA4/T1G/OSC2/CLKOUT RA4 TTL CMOS General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up/pull-down. T1G ST — Timer1 gate. OSC2 — XTAL XTAL connection. CLKOUT — CMOS TOSC reference clock. RA5/T1CKI/OSC1/CLKIN RA5 TTL CMOS General purpose I/O. Individually controlled interrupt-on-change. Individually enabled pull-up/pull-down. T1CKI ST — Timer1 clock. OSC1 XTAL — XTAL connection. CLKIN ST — TOSC/4 reference clock. RC0/C2IN+ RC0 TTL CMOS General purpose I/O. C2IN+ AN — Comparator1 input – positive. RC1/C2IN-/CS RC1 TTL CMOS General purpose I/O. C2IN- AN — Comparator1 input – negative. CS TTL — Chip select input for SPI communication with internal pull-up resistor. RC2/SCLK/ALERT RC2 TTL CMOS General purpose I/O. SCLK TTL — Digital clock input for SPI communication. ALERT — OD Output with internal pull-up resistor for AFE error signal. Legend: AN = Analog input or output CMOS = CMOS compatible input or output D = Direct HV = High Voltage ST = Schmitt Trigger input with CMOS levels OD = Open Drain TTL = TTL compatible input XTAL = Crystal |
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