Prodotti > Circuiti integrati (CI) > ATSHA204A-SSHDA-B

Le immagini sono solo di riferimento, vedere Specifiche del prodotto.


Hot Sale

CryptoAuthentication Device, I2C, 256 Bit, 16 Keys, 16 Kb, 2 V to 5.5 V, SOIC-8

Fabbricante : Microchip Technology, Inc
Pacchetto : SOP-8
Tipologia di produzione : Special Function
Datasheet: ATSHA204A-SSHDA-B Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
Stock: 452000


Richiesta di offerta

Consigli caldi: Si prega di compilare il modulo sottostante e vi contatteremo al più presto.

ATSHA204A-SSHDA-B Dettagli del prodotto

Fast, Secure, and Cost Effective Symmetric Authentication

The Microchip SHA-based CryptoAuthentication crypto element devices have been architected to provide flexible user-configured security to enable a wide range of authentication models. The ATSHA204A-SSHDA-B is the first device in the SHA device group. The ATECC108A and ATECC508A are supersets of the ATSHA204A-SSHDA-B and thus upward compatible. As with all CryptoAuthentication devices, the ATSHA204A-SSHDA-B is easy to design in with no crypto expertise required.Secure Hash Algorithm (SHA) algorithms are widely used in most cryptographic systems and remain an important component in most modern authentication protocols. These devices support the SHA-256 standard. The ATSHA204A-SSHDA-B is the most cost-effective solution in the Microchip CryptoAuthentication portfolio. It integrates the SHA-256 hash algorithm with a 4.5Kb EEPROM and provides robust hardware authentication using secure key/data storage. The tiny packaging and a single-wire interface make the device ideal for handheld electronic systems and any space-constrained embedded system.CryptoAuthentication devices in the SHA mode include client and host security capabilities that offload key storage and algorithm execution from the microcontroller, significantly reducing system cost and complexity. SHA based symmetric authentication is fast relative to asymmetric approaches, making the ATSHA204A-SSHDA-B a good choice with speed (and/or cost) are important considerations. CryptoAuthentication devices have full metal shields over all of the internal circuitry, so that if an attacker cuts or short circuits any trace in the shield, the product stops functioning. Additional security features include internal clocks and voltage generation, encrypted memories, tamper detection, and fully secure production test methodologies. With the ATSHA204A-SSHDA-B implementing host-side security to provide a full system solution is now easier than ever.

The Microchip'sATSHA204A-SSHDA-B is a full turnkey security device. It includes a 4.5Kb EEPROM divided into 16 slots. This array can be used for storage of keys, miscellaneous read/write, read-only, password or secret data, and consumption tracking. Access to the various sections of memory can be restricted in a variety of ways and then the configuration locked to prevent changes.

Access to the chip is through a standard I2C interface at speeds up to 1Mb/sec. The chip also supports a single-wire interface that can reduce the number of GPIOs required on the system processor and/or reduce the number of pins on connectors. It is compatible with most UART or serial I/O controllers. System integration is eased with a wide supply voltage range and an ultra-low sleep current of less than 100nA.



  • Cost-effective Symmetric Authentication Solution
  • Fast Authentication
  • Easy Key Management
  • Best suited for counterfeit prevention
  •  Crypto Element with Protected Hardware-based Key Storage
  •  Secure Symmetric Authentication Device Host and Client Operations
  •  Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC)
  • and Hash-Based Message Authentication Code (HMAC) Options  Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys

  •  Guaranteed Unique 72-bit Serial Number

  •  Internal, High-quality Random Number Generator (RNG)

  •  4.5Kb EEPROM for Keys and Data

  • 512 bit OTP (One Time Programmable) Bits for Fixed Information  Multiple I/O Options̶

  • UART-compatible High-Speed, Single-Wire Interface

  • 1MHz I2C Interface

  •  2.0V to 5.5V Supply Voltage Range
  •  1.8V to 5.5V Communications Voltage Range  <150nA Sleep Current

  • Secure Download and Boot Ecosystem Control

  • Message Security

  • Anti-Cloning 


ATSHA204A-SSHDA-B Prodotti

Parametri tecnici

  • Product Lifecycle Status
  • Active
  • Case/Package
  • SOIC-8
  • RoHS
  • Compliant
  • Lead Free Status
  • Lead Free

ATSHA204A-SSHDA-B Datasheet

  • ATSHA204A Technical Documentation of Application Note

ATSHA204A-SSHDA-B Related speciale

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **eter***

    wie immer - gut !

  • Ratings
  • Please rate the product!
Spedizione Di più
Estimated Delivery Time: Jun 19 - Jun 24 days (choose Expedited at checkout).

Spedizione & Pagamento


  • Tipo di spedizione
  • Tassa della nave
  • 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.


  • Condizioni di pagamento
  • Fee mano
  • 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.

Forniamo prodotti di alta qualità, un servizio attento e post-vendita di garanzia

  • Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

    Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

  • Quantità di ordine minimo comincia da 1pcs.

    Quantità di ordine minimo comincia da 1pcs.

  • Più basso tassa di spedizione internazionale parte da US $ 2,00.

    Più basso tassa di spedizione internazionale parte da US $ 2,00.

  • 90 giorni di garanzia di qualità per tutti i prodotti.

    90 giorni di garanzia di qualità per tutti i prodotti.


  • 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.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 ATSHA204A-SSHDA-B is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their ATSHA204A-SSHDA-B devices; we pay more attention to the channels and quality of ATSHA204A-SSHDA-B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ATSHA204A-SSHDA-B chips? Including MICROCHIP original factory information, Special Function application, ATSHA204A-SSHDA-B pictures?
You can use Jotrin's intelligent search engine, or filter by Accessories Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's ATSHA204A-SSHDA-B price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ATSHA204A-SSHDA-B, 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 ATSHA204A-SSHDA-B?
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 ATSHA204ASSHDAB we delivered, we will accept the replacement or return of the ATSHA204A-SSHDA-B 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 ATSHA204A-SSHDA-B.
(3)The ATSHA204A-SSHDA-B 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 ATSHA204A-SSHDA-B datasheet pdf, ATSHA204A pin diagram?
Need any After-Sales service, please feel free contact us:

Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
  • SY75572LMG
    SY75572LMG 267MHz 1:2 3.3V HCSL/LVDS Fanout Buffer
  • 10M50DAF256C7G
    10M50DAF256C7G FPGA MAX 10 Family 50000 Cells 55nm Technology 1.2V 256Pin TFBGA
  • SI3402-B-GMR
    SI3402-B-GMR Power Over Ethernet (POE) Controller, 57V Input, 350kHz, QFN-20
  • L99ASC03
    L99ASC03 3-Phase Brushless Motor Driver Automotive 48-Pin TQFP EP Tube
  • MT47H64M16NF-25E AAT:M
    MT47H64M16NF-25E AAT:M DRAM Chip DDR2 SDRAM 1Gbit 64Mx16 1.8V Automotive 84-Pin FBGA
  • HMC985LP4KE
    HMC985LP4KE Voltage Variable Attenuator 40dB 40000MHz 24-Pin QFN EP T/R

Certificati e Honor

Certificati e Honor