Specifications

Chapter 2 - Microcontroller PIC16F84

Pins on PIC16F84 microcontroller have the following meaning:

Pin no.1 RA2 Second pin on port A. Has no additional function

Pin no.2 RA3 Third pin on port A. Has no additional function.

Pin no.3 RA4 Fourth pin on port A. TOCK1 which functions as a timer is also found on this pin

Pin no.4 MCLR Reset input and Vpp programming voltage of a microcontroller

Pin no.5 Vss Ground of power supply.

Pin no.6 RB0 Zero pin on port B. Interrupt input is an additional function.

Pin no.7 RB1 First pin on port B. No additional function.

Pin no.8 RB2 Second pin on port B. No additional function.

Pin no.9 RB3 Third pin on port B. No additional function.

Pin no.10 RB4 Fourth pin on port B. No additional function.

Pin no.11 RB5 Fifth pin on port B. No additional function.

Pin no.12 RB6 Sixth pin on port B. 'Clock' line in program mode.

Pin no.13 RB7 Seventh pin on port B. 'Data' line in program mode.

Pin no.14 Vdd Positive power supply pole.

Pin no.15 OSC2 Pin assigned for connecting with an oscillator

Pin no.16 OSC1 Pin assigned for connecting with an oscillator

Pin no.17 RA2 Second pin on port A. No additional function

Pin no.18 RA1 First pin on port A. No additional function.

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