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ATECC608A-SSHCZ-B

MCHPATECC608A-SSHCZ-B

Microchip Technology
Security ICs / Authentication ICs ECC/ECDSA/ECDHE SWI SOIC bulk
NRND5,593 in stock
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Overview

The ATECC608A-SSHCZ-B is a cryptographic co-processor that provides secure hardware-based key storage and cryptographic acceleration. It supports asymmetric algorithms including ECC, ECDSA, and ECDHE, alongside symmetric functions such as SHA-256 and AES-128 GCM. This SOIC-8 IC is designed to offload sensitive security tasks from a host microcontroller while protecting private keys from physical and logical attacks.

Why Choose This Part

This device features a high-quality NIST SP 800-90A/B/C random number generator and 1024 bytes of secure EEPROM for key storage. It operates across a wide 2V to 5.5V range with a very low sleep current of 150uA, making it suitable for battery-powered applications. The flexibility of both I2C and Single-Wire interfaces allows for easy integration into existing embedded architectures with minimal pin overhead.

Applications

IoT Device Authentication
Providing unique identity and secure cloud onboarding for IoT nodes using a 72-bit unique serial number and ECDSA signatures.
Secure Boot
Verifying firmware signatures during the boot process to ensure only authorized code executes on the host processor.
Ecosystem Control
Validating the authenticity of accessories or consumables to prevent counterfeit hardware from interfacing with a system.
IP Protection
Protecting software algorithms and configuration data by tying software execution to the presence of the secure hardware.

Key Specifications

Type Authentication Chip
Applications Networking and Communications
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC

Getting Started

To evaluate this part, use the CryptoAuth Trust Platform development kits such as the DM320118. Integration is typically managed through the Microchip CryptoAuthentication Library (CAL), which provides a standard API for various host microcontrollers. For initial configuration, the AC164166 Trust Platform Design Suite provides a GUI-based tool to define memory zones and locking policies.

Also Consider

ATECC608B-SSHCZ-T MCHPMicrochip Technology - The B-series is the direct successor with enhanced security countermeasures and improved command execution timing.
DS28E15P+ Maxim Integrated / Analog Devices - A simpler, more cost-effective SHA-256 based authenticator using a 1-Wire interface for basic counterfeit protection.