DS2477Q+U by Analog Devices

DeepCover Secure SHA-3 Coprocessor with ChipDNA PUF Protection

Status: Active
Series: DS2477
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
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.

Where to Buy

Prices starting from US$1.42

Distributor Stock
Logo for Farnell
Farnell
from US$1.42
300
in stock
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Logo for Newark Electronics
Newark Electronics
from US$2.20
300
in stock
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Logo for element14
element14
from US$1.59
300
in stock
 Buy Now

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
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
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)
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)

Specifications

Crypto Engine Symmetric
End Equipment Companion CoprocessorIP ProtectionIdentification SystemsMedical Consumable IDMedical Sensor Authentication and CalibrationPCB ID and AuthenticationPrint Cartridge AuthenticationPrinter Cartridge Configuration and MonitoringRack Card Security
Bus Type 1-WireI2C
Memory Type EEPROM
Memory Size 2K x 1
Oper. Temp. (°C) -40 to +85
Package/Pins TDFN/6
BudgetaryPrice (See Notes) 1.19

DS2477Q+U Maxim Integrated Parts by Analog Devices

SECURE COPROCESSOR -40 TO 85DEG C

Semiconductors - ICs
> Special Function
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function DeepCover Secure Authenticator
Supply Voltage Min 2.97V
Supply Voltage Max 3.63V
IC Package Type TDFN-EP
No. of Pins 6Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2019)

Alternative Descriptions

Secure Coprocessor, -40 To 85Deg C | Newark Electronics
SECURE COPROCESSOR, -40 TO 85DEG C | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS2477Q+U ?

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Is the DS2477Q+U RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS2477Q+U have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for DS2477Q+U .

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