PIC18F2331-E/ML MICROCHIP [Microchip Technology], PIC18F2331-E/ML Datasheet - Page 273

• Manufacturer Part Number: PIC18F2331-E/ML
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 23-13: DEVID1: DEVICE ID REGISTER 1 FOR PIC18F2331/2431/4331/4431 DEVICES
REGISTER 23-14: DEVID2: DEVICE ID REGISTER 2 FOR PIC18F2331/2431/4331/4431 DEVICES
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7-5
bit 4-0
bit 7
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7-0
Note 1:
DEV10
DEV2
R
R
(1)
These values for DEV<10:3> may be shared with other devices. The specific device is always identified by
using the entire DEV<10:0> bit sequence.
DEV<2:0>: Device ID bits
These bits are used with the DEV<10:3> bits in the Device ID Register 2 to identify the part number.
000 = PIC18F4331
001 = PIC18F4431
100 = PIC18F2331
101 = PIC18F2431
REV<4:0>: Revision ID bits
These bits are used to indicate the device revision.
DEV<10:3>: Device ID bits
These bits are used with the DEV<2:0> bits in the Device ID Register 1 to identify the
part number
0000 0101 = PIC18F2331/2431/4331/4431 devices
DEV9
DEV1
R
R
(1)
P = Programmable bit
P = Programmable bit
DEV8
DEV0
R
R
(1)
(1)
PIC18F2331/2431/4331/4431
DEV7
REV4
R
R
(1)
U = Unimplemented bit, read as ‘0’
U = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
U = Unchanged from programmed state
DEV6
REV3
R
R
(1)
DEV5
REV2
R
R
(1)
DEV4
REV1
R
R
(1)
DS39616D-page 273
DEV3
REV0
R
R
(1)
bit 0
bit 0