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PIC16F819 Datasheet(PDF) 10 Page - Microchip Technology |
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PIC16F819 Datasheet(HTML) 10 Page - Microchip Technology |
10 / 176 page PIC16F818/819 DS39598E-page 8 2004 Microchip Technology Inc. PORTB is a bidirectional I/O port. PORTB can be software programmed for internal weak pull-up on all inputs. RB0/INT RB0 INT 67 7 I/O I TTL ST(1) Bidirectional I/O pin. External interrupt pin. RB1/SDI/SDA RB1 SDI SDA 78 8 I/O I I/O TTL ST ST Bidirectional I/O pin. SPI™ data in. I2C™ data. RB2/SDO/CCP1 RB2 SDO CCP1 89 9 I/O O I/O TTL ST ST Bidirectional I/O pin. SPI data out. Capture input, Compare output, PWM output. RB3/CCP1/PGM RB3 CCP1 PGM 910 10 I/O I/O I TTL ST ST Bidirectional I/O pin. Capture input, Compare output, PWM output. Low-Voltage ICSP™ Programming enable pin. RB4/SCK/SCL RB4 SCK SCL 10 11 12 I/O I/O I TTL ST ST Bidirectional I/O pin. Interrupt-on-change pin. Synchronous serial clock input/output for SPI. Synchronous serial clock input for I2C. RB5/SS RB5 SS 11 12 13 I/O I TTL TTL Bidirectional I/O pin. Interrupt-on-change pin. Slave select for SPI in Slave mode. RB6/T1OSO/T1CKI/PGC RB6 T1OSO T1CKI PGC 12 13 15 I/O O I I TTL ST ST ST(2) Interrupt-on-change pin. Timer1 Oscillator output. Timer1 clock input. In-circuit debugger and ICSP programming clock pin. RB7/T1OSI/PGD RB7 T1OSI PGD 13 14 16 I/O I I TTL ST ST(2) Interrupt-on-change pin. Timer1 oscillator input. In-circuit debugger and ICSP programming data pin. VSS 5 5, 6 3, 5 P – Ground reference for logic and I/O pins. VDD 14 15, 16 17, 19 P – Positive supply for logic and I/O pins. TABLE 1-2: PIC16F818/819 PINOUT DESCRIPTIONS (CONTINUED) Pin Name PDIP/ SOIC Pin# SSOP Pin# QFN Pin# I/O/P Type Buffer Type Description Legend: I = Input O = Output I/O = Input/Output P = Power – = Not used TTL = TTL Input ST = Schmitt Trigger Input Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt. 2: This buffer is a Schmitt Trigger input when used in Serial Programming mode. 3: This buffer is a Schmitt Trigger input when configured in RC Oscillator mode and a CMOS input otherwise. |
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