DS2477
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DS2477

DeepCover Secure SHA-3 Coprocessor with ChipDNA PUF Protection

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Protect Your Development Investment with Crypto-Strong Authentication and Advanced Physical Security

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.27
Features
  • 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 Secure Hash Algorithm Authenticates and Manages Peripherals
    • FIPS 202-Compliant SHA-3 Algorithm for Bidirectional Authentication
    • FIPS 198-Compliant Keyed-Hash Message Authentication Code (HMAC)
    • TRNG with NIST SP 800-90B Compliant Entropy Source
  • Supplemental Features Enable Easy Integration into End Applications
    • 2Kb of EEPROM for User Data, Key, and Control Registers
    • One Open-Drain GPIO Pin
    • Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
    • Large 1-Wire Block Buffer (126 bytes) for Efficient Data Transfer
    • 1-Wire Standard and Overdrive Timing Communication Speeds
    • I²C Communication, Up to 1MHz
    • Operating Range: 3.3V ±10%, -40°C to +85°C
    • 6-Pin TDFN-EP Package (3mm x 3mm)
Additional Details
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The DS2477 secure I²C coprocessor with built-in 1-Wire® master combines FIPS202-compliant secure hash algorithm (SHA-3) challenge and response authentication with Maxim’s patented ChipDNA™ feature, a physically unclonable technology (PUF) to provide a cost-effective solution with the ultimate protection against security attacks. The ChipDNA implementation utilizes 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 thus preventing discovery of the unique value used by the chip cryptographic functions. The DS2477 utilizes the ChipDNA output as key content to cryptographically secure all device-stored data. With ChipDNA capability, the device provides a core set of cryptographic tools derived from integrated blocks including a SHA-3 engine, a FIPS/NIST compliant true random number generator (TRNG), 2Kb of secured EEPROM, and a unique 64-bit ROM identification number (ROM ID). 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 DS2477 provides the SHA-3 and memory functionality required by a host system to communicate with and operate a 1-Wire SHA-3 slave. In addition, it performs protocol conversion between the I²C master and any attached 1-Wire SHA-3 slaves. For 1-Wire line driving, internal user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and overdrive 1-Wire communication speeds. The 1-Wire line can be powered down under software control. Strong pullup features support 1-Wire power delivery for commands that require higher current consumption.

Applications

  • 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
Part Models 2
1ku List Price Starting From $1.27

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS2477Q+T
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DS2477Q+U
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Evaluation Kit

Evaluation Kits 4

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DS28C16EVKIT

Evaluation Kit for the DS28C16 and DS2477

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DS28C16EVKIT

Evaluation Kit for the DS28C16 and DS2477

Evaluation Kit for the DS28C16 and DS2477

Features and Benefits

  • Demonstrates the Features of the DS28C16 DeepCover® SHA-3 I2C Authenticator
  • Logs I2C Communication to Aid Firmware Designer’s Understanding of the DS28C16
  • 1-Wire/I2C USB Adapter Creates a Virtual COM Port on Any PC
  • Fully Compliant with USB Specification v2.0
  • Software Runs on Windows 10, Windows 8, and Windows 7
  • Convenient On-Board Test Points and TDFN Socket

Product Detail

The DS28C16 evaluation kit (EV kit) provides the hardware and software necessary to exercise the features of the DS28C16. The EV system consists of five DS28C16 and DS2477 devices in an 8- and 6-pin TDFN package, respectively, a DS9121DQ+ and DS9121BQ+ evaluation TDFN socket board, and a DS9481P-300# USB-to-I2C/1-Wire® adapter. The evaluation software runs under Windows® 10, Windows 8, and Windows 7 operating systems, both 64-bit and 32-bit versions. It provides a handy user interface to exercise the features of the DS28C16.

Applications

  • Accessory and Peripheral Secure Authentication
  • Battery Authentication and Charge Cycle Tracking
  • Medical Tools/Accessories Authentication and Calibration
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DS28E16EVKIT

Evaluation Kit for the DS28E16 and DS2477

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DS28E16EVKIT

Evaluation Kit for the DS28E16 and DS2477

Evaluation Kit for the DS28E16 and DS2477

Features and Benefits

  • Demonstrates the Features of the DS28E16 DeepCover® SHA-3 1-Wire Authenticator
  • Logs 1-Wire/I2C Communication to Aid Firmware Designer’s Understanding of the DS28E16
  • 1-Wire/I2C USB Adapter Creates a Virtual COM Port on Any PC
  • Fully Compliant with USB Specification v2.0
  • Software Runs on Windows 10, Windows 8, and Windows 7
  • Convenient On-Board Test Points and TDFN Socket

Product Detail

The DS28E16 evaluation kit (EV kit) provides the hardware and software necessary to exercise the features of the DS28E16. The EV system consists of five DS28E16 and DS2477 devices in a 6-pin TDFN package, two DS9121BQ+ evaluation TDFN socket boards, and a DS9481P-300# USB-to-I2C/1-Wire® adapter. The evaluation software runs under Windows® 10, Windows 8, and Windows 7 operating systems, both 64-bit and 32-bit versions. It provides a handy user interface to exercise the features of the DS28E16.

Applications

  • Accessory and Peripheral Secure Authentication
  • Battery Authentication and Charge Cycle Tracking
  • Medical Tools/Accessories Authentication and Calibration

DS28C50EVKIT

Evaluation Kit for the DS28C50 and DS2477

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DS28C50EVKIT

Evaluation Kit for the DS28C50 and DS2477

Evaluation Kit for the DS28C50 and DS2477

Features and Benefits

  • Demonstrates the Features of the DS28C50 DeepCover® SHA3 I2C Authenticator
  • Demonstrates the Features of the DS2477 DeepCover SHA3 Secure Coprocessor
  • I2C Communication Is Logged to Aid Firmware Designers Understanding of DS28C50 and DS2477
  • 1-Wire/I2C USB Adapter Creates a Virtual COM Port on Any PC
  • Fully Compliant with USB Specification v2.0
  • Software Runs on Windows 10 and Windows 7
  • Convenient On-Board Test Points, TDFN Socket

Product Detail

The DS28C50 evaluation kit (EV kit) provides the hardware and software necessary to exercise the features of the DS28C50 and DS2477. The EV system consists of five DS28C50 and DS2477 devices in a 6-pin TDFN package, two DS9121BQ+ evaluation TDFN socket boards, and a DS9481P-300# USB-to-I2C/1-Wire® adapter. The evaluation software runs on Windows® 10 and Windows 7 operating systems. It provides a handy user interface to exercise the features of the DS28C50 and DS2477. Note that the evaluation software described herein is the lite version that is downloadable from Maxim’s website. To request the full developer version, click the link at the top of the page.

Applications

  • Accessory and Peripheral Secure Authentication
  • Authentication of Medical Sensors and Tools
  • IoT Node Crypto-Protection
  • Printer Cartridge Identification and Authentication
  • Secure Management of Limited Use Consumables

DS28E50EVKIT

Evaluation Kit for the DS28E50 and DS2477

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DS28E50EVKIT

Evaluation Kit for the DS28E50 and DS2477

Evaluation Kit for the DS28E50 and DS2477

Features and Benefits

  • Demonstrates the Features of the DS28E50 DeepCover® SHA3 1-Wire Authenticator
  • Demonstrates the Features of the DS2477 DeepCover SHA3 Secure Coprocessor
  • 1-Wire Communication Is Logged to Aid Firmware Designers Understanding of DS28E50 and DS2477
  • 1-Wire/I2C USB Adapter Creates a Virtual COM Port on Any PC
  • Fully Compliant with USB Specification v2.0
  • Software Runs on Windows 10 and Windows 7
  • Convenient On-Board Test Points, TDFN Socket

Product Detail

The DS28E50 evaluation kit (EV kit) provides the hardware and software necessary to exercise the features of the DS28E50 and DS2477. The EV system consists of five DS28E50 and DS2477 devices in a 6-pin TDFN package, two DS9121BQ+ evaluation TDFN socket boards, and a DS9481P-300# USB-to-I2C/1-Wire® adapter. The evaluation software runs on Windows® 10 and Windows 7 operating systems. It provides a handy user interface to exercise the features of the DS28E50 and DS2477. Note that the evaluation software described herein is the light version that is downloadable from Maxim’s website.

Applications

  • Authentication of Medical Sensors and Tools
  • IoT Node Authentication
  • Peripheral Authentication
  • Printer Cartridge Identi cation and Authentication
  • Reference Design License Management
  • Secure Management of Limited Use Consumables
Reference Designs

Reference Designs 1

MAXREFDES9008: C-Source Reference for Operating the DS28E50 Combined with a DS2477 from a Cortex-M4 Microcontroller

C-Source Reference for Operating the DS28E50 Combined with a DS2477 from a Cortex-M4 Microcontroller

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maxrefdes9008

C-Source Reference for Operating the DS28E50 Combined with a DS2477 from a Cortex-M4 Microcontroller

C-Source Reference for Operating the DS28E50 Combined with a DS2477 from a Cortex-M4 Microcontroller

Features and Benefits

  • 1-Wire DS28E50 provides SHA3-256 Challenge/ Response Authentication
  • DS2477 SHA3-256 Coprocessor stores a system secret securely and performs authentication
  • 1-Wire Master DS2477 for Optimized 1-Wire I/O Communication
  • Cotex-M4 compatible software libraries for the DS28E50 and DS2477
  • C-Code example software to show how to fully authenticate devices
View Detailed Reference Design external link

Design & Integration Tools

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