Atmel ATSHA204 CryptoAuthentication Family of Hardware Security Solutions The Atmel® ATSHA204 is the first member of the Atmel CryptoAuthentication™ family of secure authentication ICs to integrate the SHA-256 hash algorithm with a 4.5-Kbit EEPROM, providing robust hardware authentication and secure key/ data storage at a very cost-effective price. With the ATSHA204, developers can easily implement secure authentication and validation of physical or logical elements in virtually all microprocessor-based systems using the straightforward, 256bit challenge/response protocol. It is ideal for handheld electronic systems or any embedded system where space is at a premium with features such as small outline plastic packages and a single-wire interface. Implementing host-side security to provide a full system solution is now easier than ever. The ATSHA204 includes client and host security capability, offloading key storage and the execution algorithms from the MCU, significantly reducing both system cost and complexity. When using the ATSHA204 on the host, systems designers no longer need to worry about writing crypto algorithms or developing crypto protocols for their systems. Key Features and Benefits Advantages • • • • • • • • • • • • • High-security authentication at the lowest total system cost • Single-wire interface reduces connector cost and requires fewer GPIO pins • I²C interface standard in many microcontroller systems • Sophisticated hardware security features • Fits in smallest systems • Available small package outlines ideal for hand-held systems • Time-to-market • ATSHA204 includes both client and host device capability, eliminating the need to write, debug, or test system crypto code • Can be used with any microprocessor Multilevel hardware security Secure authentication and key exchange Superior SHA-256 hash algorithm Best-in-class, 256-bit key length High-quality hardware random number generator Guaranteed unique serial number 4.5-Kbit EEPROM for key and data storage High-speed I²C and single-wire interface options 1.8 – 5.5V communications < 150nA sleep current Secure personalization Green-compliant plastic packages Product Availability and Ordering Information Atmel Ordering Code Voltage Range Interface Package Samples Availability ATSHA204-TSU-T 2.0 – 5.5V single-wire SOT23 3 Now ATSHA204-SH-CZ-T 2.0 – 5.5V single-wire SOIC 8 Now ATSHA204-TH-CZ-T 2.0 – 5.5V single-wire TSSOP 8 Now ATSHA204-MAH-CZ-T 2.0 – 5.5V single-wire UDFN 8 Now ATSHA204-SH-DA-T 2.0 – 5.5V IC SOIC 8 Now ATSHA204-TH-DA-T 2.0 – 5.5V I2C TSSOP 8 Now ATSHA204-MAH-DA-T 2.0 – 5.5V I2C UDFN 8 Now ATSHA204-RBH-T 2.0 – 5.5V single-wire 3-lead Contact Now 2 Application Examples • • • • • • • Portable devices and accessories Li-ion batteries Smart meters In-home displays Medical devices Set-top boxes White goods Atmel ATSHA204 CryptoAuthentication Family of Hardware Security Solutions Integrating hardware security into embedded systems has never been easier than with the CryptoAuthentication family of hardware security solutions. Multiple evaluation and development support tools are available for the ATSHA204, giving designers the necessary flexibility to meet the most aggressive development timelines. To gain a basic understanding of the ATSHA204 device architecture and capabilities, the very low-cost AT88CK454BLACK demonstration kit is a great choice. For more comprehensive evaluation and development capabilities, designers can choose from client or client and host kit configurations that include USB connectivity as well as a modular hardware design approach that enables rapid and easy development in most development environments. Additionally, the Atmel ATAVRSECURITYX Security Xplained add-on board for the Atmel AVR® Xplained development platform provides a seamless avenue to integrate security into your embedded application. All ATSHA204 tools are based on Atmel AVR devices, with software and libraries available at www.atmel.com. AT88CK454BLACK AT88CK101STK8 ATAVRSECURITYX AT88CK109STK8 Tool Availability and Ordering Information Atmel Ordering Code Description Interface Package Samples Availability AT88CK454BLACK USB dongle secure authentication demonstration kit for Atmel ATSHA204 single-wire 3-lead SOT23 Yes Now AT88CK101STK8 Single-socket secure authentication development kit for Atmel ATSHA204 I2C 8-lead SOIC Yes Now AT88CK109STK8 Dual-socket secure authentication development kit for Atmel ATSHA204 I2C 8-lead SOIC Yes Now ATAVRSECURITYX Atmel ATSHA204 security add-on board for Atmel AVR Xplained series I2C 8-lead SOIC Yes Now Atmel Corporation 1600 Technology Drive, San Jose, CA 95110 USA T : (+1)(408) 441. 0311 F : (+1)(408) 487. 2600 | www.atmel.com © 2012 Atmel Corporation. All rights reserved. / Rev.: Atmel-8785C-ATSHA204-CryptoAuthentication-E-US-11/12 Atmel®, Atmel logo and combinations thereof, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. 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