25AA640/25LC640
DS21223H-page 16 © 2008 Microchip Technology Inc.
© 2008 Microchip Technology Inc. DS21223H-page 17
25AA640/25LC640
() )"* ! (+%+( !

  !"#$%&"' ()"&'"!&)&#*&&&#
 '!!#.#&"#'#%!&"!!#%!&"!!!&$#''!#
- '!#&.0
1,2 1!'!&$& "!**&"&&!
.32 %'!("!"*&"&&(%%'&"!!
 3&'!&"&4#*!(!!&4%&&#&
&&255***''54
6&! 99..
'!9'&! 7 7: ;
7"')%! 7 <
& ?1,
: 8& = = 
##44!!  <  
&#%%   = 
: >#& . ?1,
##4>#& . -  
##49&  - -
3&9& 9  ? 
3&& 9 .3
3& I B = <B
9#4!!  = 
9#>#& )  = -
D
N
E
E1
NOTE 1
12
b
e
c
A
A1
A2
L1
L
φ
  * ,<?1
25AA640/25LC640
DS21223H-page 18 © 2008 Microchip Technology Inc.
APPENDIX A: REVISION HISTORY
Revision F
Corrections to Section 1.0, Electrical Characteristics.
Revision G
Product ID System, Example C: Corrected part
number, added “Alternate Pinout” and corrected part
number in Header.
Updated Trademark and Sales List pages.
Revision H (June 2008)
Added “Not Recommended” note; Updated Packaging;
General updates.

25AA640-I/SN

Mfr. #:
Manufacturer:
Microchip Technology
Description:
EEPROM 8kx8 - 1.8V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union