© 2008 Microchip Technology Inc.

DS21223H-page 13

25AA640/25LC640

4.0

PACKAGING INFORMATION

4.1

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.

XXXXXXXX

XXXXXNNN

YYWW

8-Lead PDIP (300 mil)

Example:

8-Lead SOIC (150 mil)

Example:

XXXXXXXX

XXXXYYWW

NNN

25LC640

/P017

0410

25LC640

I/SN0410

017

8-Lead TSSOP

Example:

XXXX

YYWW

NNN

5LCX

0410

017

Legend: XX...X

Customer-specific information

Y

Year code (last digit of calendar year)

YY

Year code (last 2 digits of calendar year)

WW

Week code (week of January 1 is week ‘01’)

NNN

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.

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.

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