25LC640T-E/SN is available for purchase but is not normally stocked.
Available Substitutes:

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Microchip Technology
In Stock: 0
Unit Price: $1.01000
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Microchip Technology
In Stock: 3,300
Unit Price: $0.85000
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Microchip Technology
In Stock: 0
Unit Price: $0.77000
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Microchip Technology
In Stock: 0
Unit Price: $0.89600
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Microchip Technology
In Stock: 0
Unit Price: $13.08008
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onsemi
In Stock: 0
Unit Price: $0.51000
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STMicroelectronics
In Stock: 0
Unit Price: $0.48000
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STMicroelectronics
In Stock: 0
Unit Price: $0.71000
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STMicroelectronics
In Stock: 0
Unit Price: $0.46000
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STMicroelectronics
In Stock: 0
Unit Price: $0.43000
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STMicroelectronics
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Unit Price: $0.46000
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STMicroelectronics
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Unit Price: $0.43000
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ABLIC Inc.
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Unit Price: $0.67585
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ABLIC Inc.
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Unit Price: $0.77000
Datasheet
EEPROM Memory IC 64Kbit SPI 3 MHz 8-SOIC
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

25LC640T-E/SN

DigiKey Part Number
25LC640T-E/SN-ND - Tape & Reel (TR)
Manufacturer
Manufacturer Part Number
25LC640T-E/SN
Description
IC EEPROM 64KBIT SPI 3MHZ 8SOIC
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
EEPROM Memory IC 64Kbit SPI 3 MHz 8-SOIC
Datasheet
 Datasheet
EDA/CAD Models
25LC640T-E/SN Models
Product Attributes
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Category
Memory Interface
SPI
Mfr
Clock Frequency
3 MHz
Packaging
Tape & Reel (TR)
Write Cycle Time - Word, Page
5ms
Part Status
Active
Voltage - Supply
2.5V ~ 5.5V
DigiKey Programmable
Verified
Operating Temperature
-40°C ~ 125°C (TA)
Memory Type
Non-Volatile
Mounting Type
Surface Mount
Memory Format
Package / Case
Technology
EEPROM
Supplier Device Package
8-SOIC
Memory Size
Base Product Number
Memory Organization
8K x 8
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (14)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
25LC640-E/SNMicrochip Technology025LC640-E/SN-ND$1.01000Direct
25LC640AT-E/SNMicrochip Technology3,30025LC640AT-E/SNTR-ND$0.85000Similar
25AA640AT-E/SNMicrochip Technology025AA640AT-E/SN-ND$0.77000Similar
25LC640AT-H/SNMicrochip Technology025LC640AT-H/SN-ND$0.89600Similar
25LC640AT-M/SNMicrochip Technology025LC640AT-M/SN-ND$13.08008Similar
Available To Order
Check Lead Time
All prices are in USD
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,300$0.91000$3,003.00