| Pin | Name | Input | Output | Description |
Vpp | Input | Output | Programming Voltage |
|---|
| 1 | MCLR | ??? | ??? | Master Clear |
Vpp | data | data | Programming voltage input |
|---|
| 2 | RA0 | data | data | Bi-directional I/O Port A |
AN0 | data | data | Analog input 0 |
|---|
| 3 | RA1 | data | data |
AN1 | data | data | Analog input 1 |
|---|
| 4 | RA2 | data | data |
AN2 | data | data | Analog input 2 |
|---|
| 5 | RA3 | data | data |
AN3 | data | data | Analog input 3 |
|---|
| 6 | RA4 | data | data |
T0CKI | data | data | Timer 1 Output |
|---|
| 7 | RA5 | data | data |
AN4 | data | data | Analog input 4 |
|---|
| 8 | Vss | data | data | Ground reference |
|---|
| 9 | OSC1 | data | data | Crystal Oscillator |
CLKI | data | data | Clock Input |
|---|
| 10 | OSC2 | data | data |
CLKO | data | data | Clock Out |
|---|
| 11 | RC0 | data | data | Bi-directional I/O Port C |
T1OCO | data | data | Timer1 oscillator output |
|---|
| 12 | RC1 | data | data |
T10CI | data | data | Timer1 oscillator input |
|---|
| 13 | RC2 | data | data |
CCP1 | data | data | Capture1 input, Compare1 output, PWM1 output |
|---|
| 14 | RC3 | data | data |
SCK | data | data | Synchronous serial clock input/output for SPI mode |
|---|
| 15 | RC4 | data | data |
SDI | data | data | SPI data in |
|---|
| 16 | RC5 | data | data |
SDO | data | data | SPI data out |
|---|
| 17 | RC6 | data | data |
TX | data | data | USART asynchronous transmit |
|---|
| 18 | RC7 | data | data |
RX | data | data | USART asynchronous receive |
|---|
| 19 | Vss | data | data | Ground reference |
|---|
| 20 | Vdd | data | data | Power |
|---|
| 21 | RB0 | data | data | Bi-directional I/O Port B |
INT | data | data | External interrupt |
|---|
| 22 | RB1 | data | data |
data | data | data | data |
|---|
| 23 | RB2 | data | data |
data | data | data | data |
|---|
| 24 | RB3 | data | data |
PGM | data | data | Low-voltage ICSP programming enable pin |
|---|
| 25 | RB4 | data | data |
data | data | data | data |
|---|
| 26 | RB5 | data | data |
data | data | data | data |
|---|
| 27 | RB6 | data | data |
PGC | data | data | In-circuit debugger and ICSP programming clock |
|---|
| 28 | RB7 | data | data |
PGD | data | data | In-circuit debugger and ICSP programming data |
|---|