Datasheet
© 2009 Microchip Technology Inc. DS39887C-page 39
PIC18F2458/2553/4458/4553
APPENDIX A: REVISION HISTORY
Revision A (May 2007)
Original data sheet for the PIC18F2458/2553/4458/
4553 devices.
Revision B (June 2007)
Changes to Figure 4-2: PIC18LF2458/2553/4458/4553
Voltage-Frequency Graph (Industrial).
Revision C (October 2009)
Removed “Preliminary” marking.
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 PIC18F2458 PIC18F2553 PIC18F4458 PIC18F4553
Program Memory (Bytes) 24576 32768 24576 32768
Program Memory (Instructions) 12288 16384 12288 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
0011
Parallel Communications (SPP) 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 SPDIP
28-Pin SOIC
28-Pin SPDIP
28-Pin SOIC
40-Pin PDIP
44-Pin TQFP
44-Pin QFN
40-Pin PDIP
44-Pin TQFP
44-Pin QFN