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PIC16F54 Datasheet(PDF) 11 Page - Microchip Technology |
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PIC16F54 Datasheet(HTML) 11 Page - Microchip Technology |
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11 / 88 page  © 2007 Microchip Technology Inc. DS41213D-page 9 PIC16F5X TABLE 2-1: PIC16F54 PINOUT DESCRIPTION Name Function Input Type Output Type Description RA0 RA0 TTL CMOS Bidirectional I/O pin RA1 RA1 TTL CMOS Bidirectional I/O pin RA2 RA2 TTL CMOS Bidirectional I/O pin RA3 RA3 TTL CMOS Bidirectional I/O pin RB0 RB0 TTL CMOS Bidirectional I/O pin RB1 RB1 TTL CMOS Bidirectional I/O pin RB2 RB2 TTL CMOS Bidirectional I/O pin RB3 RB3 TTL CMOS Bidirectional I/O pin RB4 RB4 TTL CMOS Bidirectional I/O pin RB5 RB5 TTL CMOS Bidirectional I/O pin RB6/ICSPCLK RB6 TTL CMOS Bidirectional I/O pin ICSPCLK ST — Serial Programming Clock RB7/ICSPDAT RB7 TTL CMOS Bidirectional I/O pin ICSPDAT ST CMOS Serial Programming I/O T0CKI T0CKI ST — Clock input to Timer0. Must be tied to VSS or VDD, if not in use, to reduce current consumption. MCLR/VPP MCLR ST — Active-low Reset to device. Voltage on the MCLR/VPP pin must not exceed VDD to avoid unintended entering of Programming mode. VPP HV — Programming voltage input OSC1/CLKIN OSC1 XTAL — Oscillator crystal input CLKIN ST — External clock source input OSC2/CLKOUT OSC2 — XTAL Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode. CLKOUT — CMOS In RC mode, OSC2 pin can output CLKOUT, which has 1/4 the frequency of OSC1. VDD VDD Power — Positive supply for logic and I/O pins VSS VSS Power — Ground reference for logic and I/O pins Legend: I = input I/O = input/output CMOS = CMOS output O = output — = Not Used XTAL = Crystal input/output ST = Schmitt Trigger input TTL = TTL input HV = High Voltage |
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