PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 264

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F4321 FAMILY
REGISTER 23-12: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2221/2321/4221/4321 DEVICES
REGISTER 23-13: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2221/2321/4221/4321 DEVICES
DS39689E-page 262
bit 7-5
bit 4-0
bit 7-0
Legend:
R = Read-only bit
-n = Value when device is unprogrammed
bit 7
DEV2:DEV0: Device ID bits
000 = PIC18F4321
010 = PIC18F4221
001 = PIC18F2321
011 = PIC18F2221
REV4:REV0: Revision ID bits
These bits are used to indicate the device revision.
bit 7
DEV10:DEV3: Device ID bits
These bits are used with the DEV2:DEV0 bits in the Device ID Register 1 to identify the
part number.
0010 0001 = PIC18F2221/2321/4221/4321 devices
Legend:
R = Read-only bit
-n = Value when device is unprogrammed
DEV10
DEV2
Note:
R
R
These values for DEV10:DEV3 may be shared with other devices. The specific
device is always identified by using the entire DEV10:DEV0 bit sequence.
DEV1
DEV9
R
R
P = Programmable bit
P = Programmable bit
DEV0
DEV8
Preliminary
R
R
REV4
DEV7
R
R
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
REV3
DEV6
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R
R
REV2
DEV5
R
© 2007 Microchip Technology Inc.
R
REV1
DEV4
R
R
REV0
DEV3
R
R
bit 0
bit 0