AT25640B-XHL-B is out of stock and can be placed on backorder.
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EEPROM Memory IC 64Kbit SPI 20 MHz 8-TSSOP
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

AT25640B-XHL-B

DigiKey Part Number
AT25640B-XHL-B-ND
Manufacturer
Manufacturer Part Number
AT25640B-XHL-B
Description
IC EEPROM 64KBIT SPI 8TSSOP
Manufacturer Standard Lead Time
7 Weeks
Customer Reference
Detailed Description
EEPROM Memory IC 64Kbit SPI 20 MHz 8-TSSOP
Datasheet
 Datasheet
EDA/CAD Models
AT25640B-XHL-B Models
Product Attributes
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Category
Memory Interface
SPI
Mfr
Clock Frequency
20 MHz
Packaging
Tube
Write Cycle Time - Word, Page
5ms
Part Status
Active
Voltage - Supply
1.8V ~ 5.5V
DigiKey Programmable
Not 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 (13)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
25AA640A-E/STMicrochip Technology025AA640A-E/ST-ND$0.81000Similar
25AA640A-I/STMicrochip Technology025AA640A-I/ST-ND$0.80000Similar
25AA640AX-I/STMicrochip Technology025AA640AX-I/ST-ND$0.78400Similar
25AA640X-I/STMicrochip Technology025AA640X-I/ST-ND$0.89000Similar
CAT25640YI-GT3onsemi1,785CAT25640YI-GT3OSTR-ND$0.52000Similar
In-Stock: 0
100 estimated in stock on 07-Dec-2026
Request Stock Notification
All prices are in USD
Tube
QuantityUnit PriceExt Price
1$0.56000$0.56
25$0.54000$13.50
100$0.52000$52.00
Note: Due to DigiKey value-add services the packaging type may change when product is purchased at quantities beneath the standard package.
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.