PIC18F4321 Datasheet, PDF (369/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

28.0 PACKAGING INFORMATION
28.1 Package Marking Information
28-Lead SPDIP
XXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX
YYWWNNN
28-Lead SOIC
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
YYWWNNN
28-Lead QFN
XXXXXXXX
XXXXXXXX
YYWWNNN
28-Lead SSOP
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
PIC18F4321 FAMILY
Example
PIC18F2321-I/SP e3
0710017
Example
PIC18F2321-E/SO e3
0710017
Example
18F2321
/MM ^e3
0710017
Example
PIC18F2321
-I/SS e3
0710017
Legend:
XX...X
Y
YY
WW
NNN
e3
*
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( _e3 )
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
© 2007 Microchip Technology Inc.
Preliminary
DS39689E-page 367