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Microchip Technology 25LC640AT-I/SN Microcontrollers

IC EEPROM 64KBIT SPI 10MHZ 8SOIC

6,109 ActiveMicrochip Technology25LC6408-SOIC (0.154", 3.90mm Width)$1.33
25LC640AT-I/SN 8-SOIC (0.154", 3.90mm Width) package illustration

Same model may have multiple batches, images only for reference.

25LC640AT-I/SN
Part Number (MPN)
25LC640AT-I/SN
Base Model
Detailed Description
IC EEPROM 64KBIT SPI 10MHZ 8SOIC
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
PDF 25LC640AT-I/SN Datasheet
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Ordering Code Family

25LC640 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

3 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology 25LC640AT-I/SN Microcontrollers technical specifications.

General

Interface
Serial-SPI
Memory Size
64Kb (8K x 8)
RoHS
Compliant
Number of Pins
8
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.5V ~ 5.5V
Lifecycle Status
Active
Technology
EEPROM

Alternate Parts Comparison (25LC640AT-I/SN vs 25LC640AT-E/ST vs 25LC640AT-E/MS vs 25LC640AT-I/MS)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case8-SOIC8-TSSOP8-TSSOP8-TSSOP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 125°C (TA)-40°C ~ 125°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.5V ~ 5.5V2.5V ~ 5.5V2.5V ~ 5.5V2.5V ~ 5.5V
Memory Size64Kb (8K x 8)64Kb (8K x 8)64Kb (8K x 8)64Kb (8K x 8)
InterfaceSerial-SPISerial-SPISerial-SPISerial-SPI
Number of Pins8888
RoHSCompliantCompliantCompliantCompliant
Lifecycle StatusActiveActiveActiveActive
Address Bus Width Bit16161616
AutomotiveNoYesYesNo
Data Retention200(Min)200(Min)200(Min)200(Min)
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.