Products > Integrated Circuits (ICs) > Memory > DS1961S-F5+
  • DS1961S-F5+

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Processor Based Modules & Development Tools IBUTTON EEPROM 1KB F5

  • Package/Case :
  • F5 MicroCan
  • Product Categories :
  • Processor Based Modules & Development Tools
  • RoHs Status:
  • Rohs
  • In-stock:
  • 5299


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DS1961S-F5+ Product Details

The DS1961S-F5+ is an iButton 1Kb EEPROM with SHA-1 engine in F5 MicroCAN package. It combines 1024bits of EEPROM, 64bit secret, 8byte register/control page with up to five user read/write bytes, 512bit SHA-1 engine and fully featured 1-wire interface in a rugged iButton device. Data is transferred serially via 1-wire protocol which requires only single data lead and ground return. The DS1961S-F5+ has an additional memory area called scratchpad that acts as a buffer when writing to main memory, register page or when installing a new secret. Data is first written to scratchpad from where it can be read back. After data has been verified, copy scratchpad command will transfer data to its final memory location provided that DS1961S-F5+ receives matching 160bit message authentication code (MAC). Accessories permit DS1961S-F5+ to be mounted on almost any surface including plastic key fobs and photo-ID badges.


  • Reads and writes over wide voltage range of 2.8V to 5.25V from -40°C to +85°C
  • Button shape is self aligning with cup shaped probes
  • World class security in stainless steel case for access control and eCash applications
  • 128bits of 5V EEPROM memory partitioned into four pages of 256bits
  • Overdrive mode boosts communication speed to 125Kbps
  • On-chip 16bit CRC generator for safeguarding data transfers
  • Communicates to host with single digital signal at 14.1Kb per second using 1-wire protocol
  • Unique, factory lasered and tested 64bit registration number for absolute traceability
  • Digital identification and information by momentary contact
  • Easily affixed with self stick adhesive backing, latched by flange or locked with ring

Technical Parameters

  • Memory Type
  • Memory Size
  • 1 Kbit
  • Organization
  • 256 x 4
  • Operating Supply Voltage
  • 2.8 V to 5.25 V
  • Interface Type
  • 1-Wire
  • Maximum Operating Temperature
  • + 85 C
  • Dimensions
  • 17.35 mm x 5.89 mm
  • Package / Case
  • F5 MicroCan
  • Minimum Operating Temperature
  • - 40 C
  • Packaging
  • Bulk
  • Part # Aliases
  • 90-1961S+F50

DS1961S-F5+ Related Products

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Shipping More
Estimated Delivery Time: Jul 05 - Jul 10 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that DS1961S-F5+ is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their DS1961S-F5+ devices; we pay more attention to the channels and quality of DS1961S-F5+ products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of DS1961S-F5+ chips? Including MAXIM original factory information, Processor Based Modules & Development Tools application, DS1961S-F5+ pictures?
You can use Jotrin's intelligent search engine, or filter by iButton Products category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's DS1961S-F5+ price and stock displayed on the platform accurate?
The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for DS1961S-F5+, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of DS1961S-F5+?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS1961SF5+ we delivered, we will accept the replacement or return of the DS1961S-F5+ only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of DS1961S-F5+.
(3)The DS1961S-F5+ is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as DS1961S-F5+ datasheet pdf, DS1961S pin diagram?
Need any After-Sales service, please feel free contact us:

Maxim Integrated

Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal, high-frequency, and digital circuits that enable all four of these key interactions....
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