DS2703 SHA-1 Battery Pack Authentication IC

The DS2703 provides a robust cryptographic solution to ensure the authenticity of Li-Ion battery packs for cell phone, PDA, and portable computing devices. The DS2703 employs the Secure Hash Algorithm (SHA-1) specified in the Federal Information publication 180-1 and 180-2, and ISO/IEC 10118-3. SHA-1 is designed for authenticationjust what is required for identifying battery packs manufactured by authorized sources.
The device's SHA-1 engine processes a host transmitted challenge using its stored 64-bit secret key and unique 64-bit ROM ID to produce a 160-bit response word for transmission back to the host. The secret key is securely stored on-chip and never transmitted between the battery and the host. A DS2703-based system produces a high degree of authentication security between a host system and its removable battery or other peripheral devices.
The Thermistor Multiplexer feature allows a three contact battery pack configuration to support data and thermistor functions. When activated through 1-Wire command, the THM pin presents the thermistor impedance on the data contact and disconnects internal loading from the node.
By Maxim Integrated Products
DS2703 's PackagesDS2703 's pdf datasheet

DS2703 Pinout, Pinouts
DS2703 pinout,Pin out
This is one package pinout of DS2703,If you need more pinouts please download DS2703's pdf datasheet.

DS2703 Application circuits
DS2703 circuits
This is one application circuit of DS2703,If you need more circuits,please download DS2703's pdf datasheet.

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