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ATECC608B-RBHCZ-B

MCHPATECC608B-RBHCZ-B

Microchip Technology
Security ICs / Authentication ICs ECDH/ECC 10Kb, 3-CONTACT, SWI, Bulk
16,639 in stock
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Overview

The ATECC608B-RBHCZ-B is a secure authentication IC that provides hardware-based key storage and cryptographic acceleration. It utilizes the Single-Wire Interface (SWI) in a compact 3-lead contact package to implement ECDSA sign-verify operations and ECDH key agreement. This device is designed to protect IoT nodes and accessories by offloading sensitive cryptographic tasks from the host microcontroller.

Why Choose This Part

This device features a high-quality NIST SP 800-90A/B/C random number generator and supports both asymmetric (ECC) and symmetric (AES-128, SHA-256) algorithms. It operates with a low sleep current of 30uA and integrates two high-endurance monotonic counters, making it suitable for battery-powered security applications. The hardware-based storage ensures that private keys are never exposed to the host processor or memory.

Applications

IoT Node Authentication
Securely authenticates remote devices to cloud service providers like AWS IoT or Google Cloud IoT Core using hardware-stored private keys.
Ecosystem Control
Ensures only authorized peripherals or disposables can work with a base system, preventing counterfeit accessories.
Secure Boot
Assists a host MCU by validating code signatures before execution to ensure firmware integrity.
IP Protection
Protects firmware and proprietary algorithms by providing a secure hardware root-of-trust.

Key Specifications

Type Authentication Chip
Mounting Type Surface Mount
Package / Case 3-SMD, No Lead
Supplier Device Package 3-SMD

Getting Started

To evaluate this part, use the Microchip CryptoAuth Trust Platform which supports the ATECC608B through the CryptoAuthLib library. Engineers should use the Microchip AC164167 Trust Platform Development Board or a DT100104 development kit for initial prototyping. Configuration and locking of the device slots are typically performed using the Microchip Trust Platform Design Suite tools.

Also Consider

ATECC608B-SSHCZ-T MCHPMicrochip Technology - Standard 8-pin SOIC package version of the same silicon for designs requiring an I2C interface instead of SWI.

Categories

Security ICs > Secure Elements