Datasheet

 2010 Microchip Technology Inc. DS39616D-page 375
PIC18F2331/2431/4331/4431
APPENDIX A: REVISION HISTORY
Revision A (June 2003)
Original data sheet for PIC18F2331/2431/4331/4431
devices.
Revision B (December 2003)
The Electrical Specifications in Section 26.0 “Electri-
cal Characteristics” have been updated and there
have been minor corrections to the data sheet text.
Revision C (June 2007)
The data sheet has been updated with all known Data
Sheet Errata items and there have been minor
corrections made to the data sheet text. Also, the
packaging diagrams have been updated in
Section 27.0 “Packaging Information”.
Revision D (September 2010)
Section 2.0 “Guidelines for Getting Started with
PIC18F Microcontrollers” has been updated with
more detailed explanations. Changes have been made
to the port summary tables in Section 11.0 “I/O
Ports”. Section 26.0 “Electrical Characteristics”
has been updated to include extended temperature
data. Packaging diagrams have been replaced with
new diagrams in Section 27.0 “Packaging
Information”. There have been minor text edits
throughout the document.
APPENDIX B: DEVICE
DIFFERENCES
The differences between the devices listed in this data
sheet are shown in Table B - 1 .
TABLE B-1: DEVICE DIFFERENCES
Features PIC18F2331 PIC18F2431 PIC18F4331 PIC18F4431
Program Memory (Bytes) 4096 8192 4096 8192
Program Memory (Instructions) 2048 4096 2048 4096
Interrupt Sources 22 22 34 34
I/O Ports Ports A, B, C, D, E Ports A, B, C, D, E Ports A, B, C, D, E Ports A, B, C, D, E
Capture/Compare/PWM Modules 2 2 2 2
Enhanced Capture/Compare/
PWM Modules
1111
10-Bit Analog-to-Digital Module 5 Input Channels 5 Input Channels 9 Input Channels 9 Input Channels
Packages 28-Pin SPDIP
28-Pin SOIC
28-Pin QFN
28-Pin SPDIP
28-Pin SOIC
28-Pin QFN
40-Pin PDIP
44-Pin TQFP
44-Pin QFN
40-Pin PDIP
44-Pin TQFP
44-Pin QFN