DS28E38Q+U Product Details
The DS28E38Q+U is an ECDSA public key-based secure authenticator that incorporates Maxim’s patented ChipDNA PUF technology. ChipDNA technology involves a physically unclonable function (PUF) that enables the DS28E38Q+U to deliver cost-effective protection against invasive physical attacks. Using the random variation of semiconductor device characteristics that naturally occur during wafer fabrication, the ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics, preventing discovery of the unique value used by the chip cryptographic functions. The DS28E38Q+U utilizes the ChipDNA output as key content to cryptographically secure all device stored data and optionally, under user control, as the private key for the ECDSA signing operation. With ChipDNA capability, the device provides a core set of cryptographic tools derived from integrated blocks including an asymmetric (ECC-P256) hardware engine, a FIPS/NIST-compliant true random number generator (TRNG), 2Kb of secured EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The ECC public/ private key capabilities operate from the NIST-defined P-256 curve to provide a FIPS 186-compliant ECDSA signature generation function. The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The DS28E38Q+U communicates over the single-contact 1-Wire bus at both standard and overdrive speeds. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.
Sample now!Read white paper Read white paper How to Setup the DS28E38Q+U Evaluation Kit and Perform ECDSA Authentication ChipDNA–Defend Your IoT Designs from Hackers
Also see: ChipDNA Technology
- Robust Countermeasures Protect Against Security Attacks
- Patented Physically Unclonable Function Secures Device Data
- Actively Monitored Die Shield Detects and Reacts to Intrusion Attempts
- All Stored Data Cryptographically Protected from Discovery
- Efficient Public-Key Authentication Solution to Authenticate Peripherals
- FIPS 186-Compliant ECDSA P256 Signature for Challenge/Response Authentication
- Options for ECDSA Public/Private Key Pair Source Include ChipDNA Generated, Chip Computed, and User Installed
- TRNG with NIST SP 800-90B Compliant Entropy Source
- Supplemental Features Enable Easy Integration into End Applications
- 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
- 2Kbits of EEPROM for User Data, Key, Control Registers, and Certificate
- Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
- Single-Contact, 1-Wire Interface Communication with Host at 11.7kbps and 62.5kbps Operating Range: 3.3V ±10%, -40°C to +85°C
- 6-Pin TDFN-EP Package (3mm x 3mm)
- Authentication of Medical Sensors and Tools
- IoT Node Authentication
- Peripheral Authentication
- Printer Cartridge Identification and Authentication
- Reference Design License Management
- Secure Management of Limited Use Consumables
- Authentication Chip
- Authentication, Security
- Mounting Type
- Surface Mount
- Package / Case
- 6-WDFN Exposed Pad
- Supplier Device Package
- 6-TDFN (3x3)
DS28E38 data sheet for guidance
DS28E38Q+U Related Products
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Estimated Delivery Time: Dec 05 - Dec 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
- REGISTERED AIR MAIL
- $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
- Wire Transfer
- charge US$30.00 banking fee.
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- 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.
Minimum order quantity starts from 1pcs.
Lowest international shipping fee starts from US$2.00.
90 days quality guarantee for all products.
Step2: Vacuum Packaging
Step3: Anti-Static Bag
Step4: Individual Packaging
Step5: Packaging Boxes
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.
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
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 DS28E38Q+U 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 DS28E38Q+U devices; we pay more attention to the channels and quality of DS28E38Q+U products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of DS28E38Q+U chips? Including MAXIM original factory information, Secure Authenticators application, DS28E38Q+U pictures?
- You can use Jotrin's intelligent search engine, or filter by Secure Authenticators category, or find it through Maxim Integrated Information page.
- Q: Are the MAXIM's DS28E38Q+U 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 DS28E38Q+U, 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 DS28E38Q+U?
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 DS28E38Q+U we delivered, we will accept the replacement or return of the DS28E38Q+U 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 DS28E38Q+U.
(3)The DS28E38Q+U 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 DS28E38Q+U datasheet pdf, DS28E38 pin diagram?
- Need any After-Sales service, please feel free contact us: email@example.com
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