25LC640XT-I/ST is out of stock and can be placed on backorder.
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Microchip Technology
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EEPROM Memory IC 64Kbit SPI 2 MHz 8-TSSOP
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

25LC640XT-I/ST

DigiKey Part Number
25LC640XT-I/STTR-ND - Tape & Reel (TR)
25LC640XT-I/STCT-ND - Cut Tape (CT)
25LC640XT-I/STDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
25LC640XT-I/ST
Description
IC EEPROM 64KBIT SPI 2MHZ 8TSSOP
Manufacturer Standard Lead Time
9 Weeks
Customer Reference
Detailed Description
EEPROM Memory IC 64Kbit SPI 2 MHz 8-TSSOP
Datasheet
 Datasheet
EDA/CAD Models
25LC640XT-I/ST Models
Product Attributes
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Category
Memory Interface
SPI
Mfr
Clock Frequency
2 MHz
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Write Cycle Time - Word, Page
5ms
Part Status
Active
Voltage - Supply
2.5V ~ 5.5V
DigiKey Programmable
Verified
Operating Temperature
-40°C ~ 85°C (TA)
Memory Type
Non-Volatile
Mounting Type
Surface Mount
Memory Format
Package / Case
Technology
EEPROM
Supplier Device Package
8-TSSOP
Memory Size
Base Product Number
Memory Organization
8K x 8
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (19)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
25LC640X-I/STMicrochip Technology025LC640X-I/ST-ND$0.97000Direct
25AA640AT-E/STMicrochip Technology025AA640AT-E/ST-ND$0.85400Similar
25AA640AT-I/STMicrochip Technology025AA640AT-I/STTR-ND$0.82000Similar
25AA640AXT-I/STMicrochip Technology025AA640AXT-I/STTR-ND$0.76000Similar
25AA640XT-I/STMicrochip Technology025AA640XT-I/ST-ND$0.84000Similar
In-Stock: 0
2,500 estimated in stock on 28-Dec-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.97000$0.97
25$0.93000$23.25
100$0.89000$89.00
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$0.89000$2,225.00
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.