Product category:
Analogue and Mixed Signal ICs
News Release from: Intersil | Subject: ISL9206 and ISL9206A
Edited by the Electronicstalk Editorial
Team on 28 March 2008
Authentication ICs set seal on battery
security
Battery authentication ICs incorporate very high levels of security using a basic challenge/response scheme based on 32bit challenge code and 8bit response code.
Intersil has released two devices it reckons are the most advanced and flexible battery authentication ICs for cellphones using its novel FlexiHash technology The ISL9206 and ISL9206A are cost-competitive battery authentication ICs that incorporate Intersil's FlexiHash+ engine
This article was originally published on Electronicstalk on 8 Jan 2001 at 8.00am (UK)
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It provides very high levels of security using a basic challenge/response scheme based on 32bit challenge code and 8bit response code.
FlexiHash+ employs two sets of 32bit secrets for generating authentication code to offer tens of billions of potential configurations for users.
And with 16x8 one-time programmable (OTP) ROM, the devices can store a total of three sets of these 32bit secrets.
Programmable memory adds the ability to store up to 48bit of ID code and/or pack information.
The result is fast, highly secure and flexible battery/device authentication that makes hacking prohibitively difficult due to the exhaustive key search that would be needed to break a code.
The ISL9206 and 06A operate from 2.6 to 4.8V supplies and can be powered directly from a single Li-ion/Li-polymer cell or a three-cell series NiMH battery pack.
The devices can also be powered by the XSD bus when the bus pull-up voltage is 3.3V or higher.
They connect to the cell terminals of a battery pack and include an on-chip voltage regulation circuit, POR and a non-crystal-based oscillator for bus timing reference.
Both new authentication ICs also include a clone prevention feature offering safety and revenue protection suitable for protection against aftermarket replacements.
As an added feature, the ISL9206 incorporates multipass authentication that can be used to maximise security.
Both devices are also ideal design choices for a wide variety of printer cartridges.
The ISL9206 and ISL9206A are available now in space-saving 5-lead SOT-23 and 8-lead TDFN packages.
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