© 2008 Microchip Technology Inc.

DS21830D-page 27

25AA640A/25LC640A

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office

.

PART NO.

X

/XX

Package

Tape & Reel

Device

Device:

25AA640A =

25LC640A

=

25AA640AX =

25LC640AX =

64k-bit, 1.8V, SPI Serial EEPROM

64k-bit, 2.5V, SPI Serial EEPROM

64k-bit, 1.8V, SPI Serial EEPROM in alternate

pinout (ST only)

64k-bit, 2.5V, SPI Serial EEPROM

in alternate pinout (ST only)

Tape & Reel:

Blank

=

T=

Standard packaging

Tape & Reel

Temperature

Range:

I=

E=

-40

°C to+85°C

-40

°C to+125°C

Package:

MS

=

P=

SN

=

ST

=

MF

=

Plastic MSOP (Micro Small Outline), 8-lead

Plastic DIP (300 mil body), 8-lead

Plastic SOIC (3.90 mm body), 8-lead

TSSOP (4.4 mm body), 8-lead

DFN (5x6), 8-lead

TDFN (2x3), 8-lead

Note

1:

“Y” indicates a Nickel Palladium Gold (NiPdAu) finish.

Examples:

a)

25AA640A-I/MS = 64 kbit, 1.8V Serial

EEPROM, Industrial temp., MSOP

package

b)

25AA640AT-I/SN = 6 kbit, 1.8V Serial

EEPROM, Industrial temp., Tape & Reel, SOIC

package

c)

25LC640AT-E/SN

= 64

kbit,

2.5V Serial

EEPROM, Extended temp., Tape & Reel, SOIC

package

d)

25LC640AT-I/ST

=

64

kbit,

2.5V

Serial

EEPROM, Industrial temp., Tape & Reel,

TSSOP package

e)

25LC640AXT-I/ST = 64 kbit, 2.5V Serial

EEPROM, Industrial temp., Tape & Reel,

Rotated pinout, TSSOP package

–

X

Temp Range