ATECC608A-SSHCZ-B

Part: ATECC608A Microchip

Type: CryptoAuthentication Device

Key Specs:

• Protected Storage: up to 16 Keys, Certificates or Data
• Symmetric Algorithms: AES-128, SHA-256 & HMAC
• Asymmetric Algorithms: ECDSA, ECDH, NIST P256 Elliptic Curve Support
• Serial Number: Guaranteed Unique 72-bit
• Interface: 1 MHz Standard I2C, High-speed Single Pin Interface
• IO Levels: 1.8V to 5.5V
• Supply Voltage: 2.0V to 5.5V
• Sleep Current: <150 nA

Features:

• Cryptographic Co-Processor with Secure Hardware-based Key Storage
• Hardware Support for Asymmetric Sign, Verify, Key Agreement (ECDSA, ECDH, NIST P256)
• Hardware Support for Symmetric Algorithms (SHA-256 & HMAC, AES-128)
• Networking Key Management Support (PRF/HKDF for TLS 1.2 & 1.3, Ephemeral key generation, Small message encryption)
• Secure Boot Support (ECDSA code signature validation, communication key disablement, message encryption/authentication)
• Internal High-Quality NIST SP 800-90A/B/C Random Number Generator (RNG)
• Two High-Endurance Monotonic Counters
• Guaranteed Unique 72-bit Serial Number
• Two Interface Options Available (High-speed Single Pin Interface, 1 MHz Standard I2C Interface)
• 1.8V to 5.5V IO Levels, 2.0V to 5.5V Supply Voltage
• <150 nA Sleep Current

Applications:

• IoT network endpoint key management & exchange
• Encryption for small messages and PII data
• Secure Boot and Protected Download
• Ecosystem Control, Anti-cloning
• Network/IoT Node Endpoint Security
• Key Generation for Software Download

Package:

• 8-pad UDFN
• 8-lead SOIC

• Cryptographic Co-Processor with Secure Hardware-based Key Storage:
  • Protected Storage for up to 16 Keys, Certificates or Data
• Hardware Support for Asymmetric Sign, Verify, Key Agreement:
  • ECDSA: FIPS186-3 Elliptic Curve Digital Signature
  • ECDH: FIPS SP800-56A Elliptic Curve Diffie-Hellman
  • NIST Standard P256 Elliptic Curve Support
• Hardware Support for Symmetric Algorithms:
  • SHA-256 & HMAC Hash including off-chip context save/restore
  • AES-128: Encrypt/Decrypt, Galois Field Multiply for GCM
• Networking Key Management Support:
  • Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3
  • Ephemeral key generation and key agreement in SRAM
  • Small message encryption with keys entirely protected
• Secure Boot Support:
  • Full ECDSA code signature validation, optional stored digest/signature
  • Optional communication key disablement prior to secure boot
  • Encryption/Authentication for messages to prevent on-board attacks
• Internal High-Quality NIST SP 800-90A/B/C Random Number Generator (RNG)
• Two High-Endurance Monotonic Counters
• Guaranteed Unique 72-bit Serial Number
• Two Interface Options Available:
  • High-speed Single Pin Interface with One GPIO Pin
  • 1 MHz Standard I2C Interface
• 1.8V to 5.5V IO Levels, 2.0V to 5.5V Supply Voltage
• <150 nA Sleep Current
• 8-pad UDFN and 8-lead SOIC Packages

• IoT network endpoint key management & exchange
• Encryption for small messages and PII data
• Secure Boot and Protected Download
• Ecosystem Control, Anti-cloning

Pin Configuration and Pinouts

Table 1. Pin Configuration

Figure 1. Pinouts

Figure 1. Pinouts

2.1 Absolute Maximum Ratings*

Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C

Maximum Operating Voltage 6.0V DC Output Current 5.0 mA

Voltage on any pin -0.5V to (VCC + 0.5V) -0.5V to (VCC + 0.5V)

Note: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

2.2 Reliability

The ATECC608A is fabricated with the Microchip high reliability of the CMOS EEPROM manufacturing technology.

Table 2-1. EEPROM Reliability

2.3 AC Parameters: All I/O Interfaces

Figure 2-1. AC Timing Diagram: All Interfaces

Table 2-2. AC Parameters: All I/O Interfaces

Note:

• 1. These parameters are guaranteed through characterization, but not tested.
• 1. The power-up delay will be significantly longer if Power-On self test is enabled in the configuration zone.

2.3.1 AC Parameters: Single-Wire Interface

Figure 2-2. AC Timing Diagram: Single-Wire Interface

Table 2-3. AC Parameters: Single-Wire Interface

Unless otherwise specified, applicable from TA = -40°C to +85°C, VCC = +2.0V to +5.5V, CL = 100 pF.

Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C

Maximum Operating Voltage 6.0V DC Output Current 5.0 mA

Voltage on any pin -0.5V to (VCC + 0.5V) -0.5V to (VCC + 0.5V)

Note: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.