Microchip 8-Pin Crypto Authentication IC SOIC ATECC608B-SSHDA-B

Microchip ATECC608B-SSHDA-B is an advanced 8-pin crypto authentication integrated circuit housed in a surface-mount SOIC package with dimensions of 6 mm length, 4.9 mm height, and 1.75 mm width. It operates within a voltage range up to 5.5 V and temperature range from -40°C to 100°C, making it suitable for industrial and commercial electronic component applications requiring robust security.

This device combines world-class hardware-based secure key storage with hardware cryptographic accelerators to facilitate various authentication and encryption protocols. It is backward compatible with the ATECC608A series, ensuring easy migration and integration.

The ATECC608B offers protected storage for up to 16 cryptographic keys, certificates, or data elements. It supports hardware acceleration for asymmetric cryptography such as ECDSA compliant with FIPS186-3 using the NIST P256 elliptic curve, symmetric algorithms including SHA-256 and HMAC hashing with off-chip context save and restore, as well as AES-128 encryption and decryption with GCM support.

Additional features include internal high-quality random number generation that meets NIST SP 800-90A/B/C standards, two high endurance monotonic counters for secure operation tracking, and secure boot support enabling full ECDSA code signature validation with optional communication key disablement prior to boot.

This IC provides turnkey key management support including PRF and HKDF calculations for TLS 1.2 and TLS 1.3 protocols, ephemeral key generation, and key agreement solely in SRAM, ensuring keys remain protected. Its robust encryption and authentication features defend against on-board attacks, making it ideal for security-sensitive electronic and industrial applications.

Common use cases include secure authentication, encrypted communications, secure boot processes, and cryptographic key management in industrial control, networking, manufacturing, and embedded system environments. This product is RoHS compliant but does not meet automotive standards.

Key features include surface mount SOIC packaging, 8-pin configuration, and high operating temperature range, facilitating integration into compact printed circuit board designs. Combines hardware key storage with cryptographic accelerators for enhanced security.

Supports secure storage for up to 16 keys, certificates, or data items. Enables hardware support for asymmetric and symmetric cryptographic algorithms. Includes hardware-accelerated ECDSA and NIST standard P256 elliptic curve support.

Supports SHA-256, HMAC, AES-128 encryption, and decryption with off-chip context save and restore. Features internal high-quality NIST SP 800-90A/B/C compliant random number generator. Includes two high endurance monotonic counters for secure operation tracking.

Provides secure boot support with full ECDSA code signature validation. Compatible with TLS 1.2 and 1.3 for key management and ephemeral key generation. Surface mount SOIC package with 8 pins measuring 6 mm length, 4.9 mm height, and 1.75 mm width.

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