Datasheet

PIC18F2455/2550/4455/4550
DS39632E-page 302 © 2009 Microchip Technology Inc.
REGISTER 25-13: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2455/2550/4455/4550 DEVICES
RRRRRRRR
DEV2 DEV1 DEV0 REV4 REV3 REV2 REV1 REV0
bit 7 bit 0
Legend:
R = Read-only bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state
bit 7-5 DEV2:DEV0: Device ID bits
For a complete listing, see Register 25-14.
bit 4-0 REV4:REV0: Revision ID bits
These bits are used to indicate the device revision.
REGISTER 25-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2455/2550/4455/4550 DEVICES
RRRRRRRR
DEV10 DEV9 DEV8 DEV7 DEV6 DEV5 DEV4 DEV3
bit 7 bit 0
Legend:
R = Read-only bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state
bit 7-0 DEV10:DEV3: Device ID bits
DEV10:DEV3
(DEVID2<7:0>)
DEV2:DEV0
(DEVID1<7:5>)
Device
0001 0010 011
PIC18F2455
0010 1010 011
PIC18F2458
0001 0010 010
PIC18F2550
0010 1010 010
PIC18F2553
0001 0010 001
PIC18F4455
0010 1010 001
PIC18F4458
0001 0010 000
PIC18F4550
0010 1010 000
PIC18F4553