Accessible pinout for PIC18F2455-ISP

Part description: 24K Flash, 2K SRAM, 256 EEPROM, USB, nanoWatt XLP, SPDIP28

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- / CVref
5RA3 / AN3 / Vref+
6RA4 / T0CKI / C1OUT / RCV
7RA5 / AN4 / SS (active low) / HLVDIN / C2OUT
8VSS
9OSC1 / CLKI
10RA6 / OSC2 / CLKO
11T1OSO / T13CKI / RC0
12UOE (active low) / CCP2 / T1OSI / RC1
13CCP1 / RC2
14VUSB

Right side (numbering starts at near end)

Pin Signals
15VM / D- / RC4
16VP / D+ / RC5
17TX / CK / RC6
18SDO / RX / DT / RC7
19VSS
20VDD
21RB0 / AN12 / INT0 / FLT0 / SDI / SDA
22RB1 / AN10 / INT1 / SCK / SCL
23RB2 / AN8 / INT2 / VMO
24RB3 / AN9 / CCP2 / VPO
25RB4 / AN11 / KBI0
26RB5 / KBI1 / PGM
27RB6 / KBI2 / PGC
28RB7 / 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.