Datasheet

© 2009 Microchip Technology Inc. DS39755C-page 45
PIC18F2423/2523/4423/4523
APPENDIX A: REVISION HISTORY
Revision A (June 2006)
Original data sheet for PIC18F2423/2523/4423/4523
devices.
Revision B (January 2007)
This revision includes updates to the packaging
diagrams.
Revision C (September 2009)
Electrical specifications updated. Preliminary condition
status removed. Converted document to the “mini data
sheet” format.
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 PIC18F2423 PIC18F2523 PIC18F4423 PIC18F4523
Program Memory (Bytes) 16384 32768 16384 32768
Program Memory (Instructions) 8192 16384 8192 16384
Interrupt Sources 19 19 20 20
I/O Ports Ports A, B, C, (E) Ports A, B, C, (E) Ports A, B, C, D, E Ports A, B, C, D, E
Capture/Compare/PWM Modules 2 2 1 1
Enhanced
Capture/Compare/PWM Modules
00 1 1
Parallel Communications (PSP) No No Yes Yes
12-Bit Analog-to-Digital Module 10 Input Channels 10 Input Channels 13 Input Channels 13 Input Channels
Packages 28-Pin PDIP
28-Pin SOIC
28-Pin QFN
28-Pin PDIP
28-Pin SOIC
28-Pin QFN
40-Pin PDIP
44-Pin TQFP
44-Pin QFN
40-Pin PDIP
44-Pin TQFP
44-Pin QFN