 2003 Microchip Technology Inc.

Preliminary

DS21822C-page 23

25AA256/25LC256

PRODUCT IDENTIFICATION SYSTEM

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

.

Sales and Support

PART NO.

X

/XX

X

Lead

Package

Tape & Reel

Device

Device

25AA256

25LC256

256k-bit, 1.8V, 64-Byte Page, SPI Serial EEPROM

256k-bit, 2.5V, 64-Byte Page, SPI Serial EEPROM

Tape & Reel

Blank

=

T=

Standard packaging (tube)

Tape & Reel

Temperature Range

I

=

E=

-40

°C to+85°C

-40

°C to+125°C

Package

MF

=

P=

SN

=

ST

=

Micro Lead Frame (6 x 5 mm body), 8-lead

Plastic DIP (300 mil body), 8-lead

Plastic SOIC (150 mil body), 8-lead

TSSOP, 8-lead

Lead Finish

Blank

=

G=

Standard 63% / 37% Sn/Pb

Matte Tin (Pure Sn)

Examples:

a)

25AA256-I/STG = 256k-bit, 1.8V Serial

EEPROM, Industrial temp., TSSOP package,

Pb-free

b)

25AA256T-I/SN = 256k-bit, 1.8V Serial

EEPROM, Industrial temp., Tape & Reel, SOIC

package

c)

25AA256T-I/ST = 256k-bit, 1.8V Serial

EEPROM, Industrial temp., Tape & Reel,

TSSOP package

d)

25LC256-I/STG = 256k-bit, 2.5V Serial

EEPROM, Industrial temp., TSSOP package,

Pb-free

e)

25LC256-I/P = 256k-bit, 2.5V Serial EEPROM,

Industrial temp., P-DIP package

f)

25LC256T-E/ST

=

256k-bit,

2.5V

Serial

EEPROM, Extended temp., Tape & Reel,

TSSOP package

–

Finish

Data Sheets

Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and

recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:

1.

Your local Microchip sales office

2.

The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277

3.

The Microchip Worldwide Site (www.microchip.com)

Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.

New Customer Notification System

Register on our web site (www.microchip.com/cn) to receive the most current information on our products.

X

Temp Range