Accessible pinout for PIC18LF4431-IP

Part description: 16K Flash, 768B SRAM, 256B EEPROM, nanoWatt XLP, ADC, PWM, DIP40

Package description: This package has two parallel rows of pins extending down from opposite edges of the chip.

There should be a semicircular notch that you can feel in the middle of one of the package's shorter bare edges. With the pins facing downward and the chip oriented so notch is on the side of the chip furthest from you, Pin 1 will be in the far left corner of the chip.

Pins are numbered counter-clockwise. Numbers increase from the far left corner to the near left corner. They then continue on the right side, increasing from the near right corner to the far right corner. Thus the highest number pin is to the right of pin 1.

Pin assignments

Left side (numbering starts at far end)

Pin Signals
1Vpp / MCLR (active low) / RE3
2RA0 / AN0
3RA1 / AN1
4RA2 / AN2 / Vref- / CAP1 / INDX
5RA3 / AN3 / Vref+ / CAP2 / QEA
6RA4 / AN4 / CAP3 / QEB
7RA5 / AN5 / LVDIN
8AN6 / RE0
9AN7 / RE1
10AN8 / RE2
11AVDD
12AVSS
13RA7 / OSC1 / CLKI
14RA6 / OSC2 / CLKO
15T1OSO / T1CKI / RC0
16FLTA (active low) / T1OSI / CCP2 / RC1
17FLTB (active low) / CCP1 / RC2
18INT0 / T5CKI / T0CKI / RC3
19T5CKI / T0CKI / RD0
20SDO / RD1

Right side (numbering starts at near end)

Pin Signals
21SDA / SDI / RD2
22SCL / SCK / RD3
23INT1 / SDI / SDA / RC4
24INT2 / SCK / SCL / RC5
25TX / SS (active low) / CK / RC6
26RX / SDO / DT / RC7
27FLTA (active low) / RD4
28PWM4 / RD5
29PWM6 / RD6
30PWM7 / RD7
31VSS
32VDD
33RB0 / PWM0
34RB1 / PWM1
35RB2 / PWM2
36RB3 / PWM3
37RB4 / KBI0 / PWM5
38RB5 / KBI1 / PWM4 / PGM
39RB6 / KBI2 / PGC
40RB7 / KBI3 / PGD

This pinout was automatically generated from the KiCAD symbol library revision 164574.

It is possible that there may be a mistake in the source data leading to wrong information on this page.