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数据搜索系统，热门电子元器件搜索 |
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AT90USBKEY 数据表(PDF) 3 Page - ATMEL Corporation |
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AT90USBKEY 数据表(HTML) 3 Page - ATMEL Corporation |
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3 / 8 page  Atmel Crypto Products Portfolio Family of Secure Authentication Solutions Atmel Crypto Authentication Atmel® CryptoAuthentication™ is the first family of secure authentication ICs using the SHA-256 hash algorithm with a 256-bit key length, providing robust hardware authentication at a very cost-effective price. With CryptoAuthentication, Atmel ATSHA204 developers can easily implement secure authentication and validation of physical or logical elements in virtually all microprocessor-based systems using the straightforward 256-bit challenge/ response protocol. It is ideal for handheld electronic systems or any embedded system where space is at a premium with features such as a tiny 3-pin SOT23 package and a single-wire interface. Implementing host side security to provide a full system solution is now easier than ever. The Atmel ATSHA204 includes both 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 Atmel ATSHA204 on the host, systems designers no longer need to worry about the cryptographic algorithms for their systems. © 2011 / www.atmel.com 2 Atmel Device Description Interface Temp V CC ATSHA204 Client/Host Authentication with EEPROM I2C / Single Wire -40°C to 85°C 2.0-5.5V AT88SA102S Secure Authentication Single Wire -40°C to 85°C 2.5-5.5V AT88SA10HS Host-side Authentication Single Wire -40°C to 85°C 2.5-5.5V Figure 3. Atmel AT88CK109STK8 starter kit Key Features • Secure authentication and key exchange • Superior SHA-256 hash algorithm • Best-in-class 256-bit key length • Guaranteed unique serial number • High-speed I2C and single-wire interface options • 1.8 – 5.5V communications • 4-Kbit EEPROM for key and data storage • <100nA sleep current • Multi-level hardware security • Secure personalization • Green compliant (exceeds RoHS) plastic packages Advantages • High-security authentication at the lowest total system cost • Single-wire interface reduces connector cost and requires fewer GPIO pins • Sophisticated hardware security features • Fits in the smallest systems • Tiny 3-pin SOT23 is ideal for hand-held systems • Quick 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 Package Options • 3-pin SOT23 (1.3mm x 2.9mm body) • 8-lead SOIC • 8-lead TSSOP Development Kits* • Atmel AT88CK454BLACK – Evaluation Kit • Atmel AT88CK101STK8 – Starter Kit • Atmel AT88CK109STK8 – Starter Kit • Atmel ATAVRSECURITYX – Atmel AVR® Xplained Add-on Board *See Page 6 for full description |
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