The ATSHA204-SH-ED-T is a CryptoAuthentication™ device from Microchip (formerly Atmel). It's a security chip designed to provide hardware-based key storage and cryptographic countermeasures to protect against cloning, counterfeiting, and other security threats. It is commonly used in applications where secure authentication and data protection are crucial.

Applications

• Secure key storage
• Authentication and access control
• Anti-counterfeiting
• Secure boot
• IoT device security

Features

• Hardware-based key storage
• SHA-256 hash algorithm
• ECDSA signature verification
• Unique 72-bit serial number
• Secure boot support
• Tamper detection

Benefits

• Enhanced Security: Provides robust protection against security threats.
• Simplified Security Implementation: Offloads complex cryptographic operations from the host microcontroller.
• Improved System Reliability: Hardware-based security features reduce the risk of software vulnerabilities.
• Reduced Development Time: Pre-programmed security functions simplify development.
• Cost-Effective Security: Provides a cost-effective solution for adding security to embedded systems.

Technical Specifications:

• Cryptography: SHA-256, ECDSA
• Memory: 4.5 Kb EEPROM
• Interface: Single-wire, I2C
• Operating Voltage: 2.5V to 5.5V
• Operating Temperature: -40°C to +85°C
• Package: SOIC-8, TDFN-8