25lc640 Microchip Technology Inc., 25lc640 Datasheet - Page 13

• Manufacturer Part Number: 25lc640
• Description: 64k Spi Bus Serial Eeprom
• Manufacturer: Microchip Technology Inc.

4.0
4.1
© 2008 Microchip Technology Inc.
*
PACKAGING INFORMATION
Package Marking Information
Standard marking consists of Microchip part number, year code, week code, traceability code (facility
code, mask rev#, and assembly code). For marking beyond this, certain price adders apply. Please
check with your Microchip Sales Office.
8-Lead PDIP (300 mil)
8-Lead SOIC (150 mil)
8-Lead TSSOP
Legend: XX...X
Note:
XXXXXXXX
XXXXYYWW
XXXXXNNN
XXXXXXXX
YYWW
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.
NNN
Y
YY
WW
NNN
*
e
YYWW
3
XXXX
NNN
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 (
can be found on the outer packaging for this package.
25AA640/25LC640
Example:
Example:
Example:
25LC640
I/SN0410
25LC640
/P017
0410
017
5LCX
0410
017
e
3
)
DS21223H-page 13