Datasheet

© 2005 Microchip Technology Inc. DS21822E-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
PackageTape & Reel
Device
Device: 25AA256
25LC256
25AA256X
25LC256X
256k-bit, 1.8V, 64-Byte Page, SPI Serial EEPROM
256k-bit, 2.5V, 64-Byte Page, SPI Serial EEPROM
256k-bit, 1.8V, 64-Byte Page, SPI Serial EEPROM,
rotated pinout (ST only)
256k-bit, 2.5V, 64-Byte Page, SPI Serial EEPROM,
rotated pinout (ST only)
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 =
SM =
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
Plastic SOIC (208 mil body), 8-lead
Examples:
a) 25AA256T-I/SN = 256k-bit, 1.8V Serial
EEPROM, Industrial temp., Tape & Reel, SOIC
package
b) 25AA256T-I/ST = 256k-bit, 1.8V Serial
EEPROM, Industrial temp., Tape & Reel,
TSSOP package
c) 25LC256-I/P = 256k-bit, 2.5V Serial EEPROM,
Industrial temp., P-DIP package
d) 25LC256T-E/ST = 256k-bit, 2.5V Serial
EEPROM, Extended temp., Tape & Reel,
TSSOP package
e) 25LC256XT-I/ST = 256k-bit, 2.5V Serial
EEPROM, Industrial temp., Tape and Reel,
Rotated TSSOP package
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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: [phone]
3. The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
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X
Temp Range