Accessible pinout for PIC18F442-IP

Part description: 16K Flash, 768B SRAM, 256 EEPROM, ADC, 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
1MCLR (active low) / VPP
2RA0 / AN0
3RA1 / AN1
4RA2 / AN2 / Vref-
5RA3 / AN3 / Vref+
6RA4 / TOCKI
7RA5 / AN4 / SS (active low) / LVDIN
8RD (active low) / AN5 / RE0
9WR (active low) / AN6 / RE1
10CS (active low) / AN7 / RE2
11VDD
12VSS
13OSC1 / CLKIN
14RA6 / OSC2 / CLKO
15T10S0 / T1CKI / RC0
16CCP2 / T1OSI / RC1
17CCP1 / RC2
18SCK / SCL / RC3
19PSP0 / RD0
20PSP1 / RD1

Right side (numbering starts at near end)

Pin Signals
21PSP2 / RD2
22PSP3 / RD3
23SDI / SDA / RC4
24SDO / RC5
25TX / CK / RC6
26RX / DT / RC7
27PSP4 / RD4
28PSP5 / RD5
29PSP6 / RD6
30PSP7 / RD7
31VSS
32VDD
33RB0 / INT0
34RB1 / INT1
35RB2 / INT2
36RB3 / CCP2
37RB4
38RB5 / PGM
39RB6 / PGC
40RB7 / 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.