25LC640-E/ST MICROCHIP [Microchip Technology], 25LC640-E/ST Datasheet - Page 13

• Manufacturer Part Number: 25LC640-E/ST
• Description: 64K SPI Bus Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

4.0
4.1
 2004 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:
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
YY
WW
NNN
XX...X Customer specific information*
YYWW
XXXX
NNN
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
25AA640/25LC640
Example:
Example:
Example:
25LC640
I/SN0410
25LC640
/P017
0410
017
5LCX
0410
017
DS21223G-page 13