TEALEAF-USB

The TEALEAF-USB is a low cost authentication system which may be used to verify that a software product is not an unauthorized pirate copy. The host PC uses a simple but robust algorithm to verify that a TEAleaf-USB device is present, using a 12bit encryption key. TEAleaf-USB uses the human interface device (HID) USB profile. It does not require USB drivers and is immediately plug and play compatible with present and future Windows, Linux and Mac operating systems. TEAleaf-USB is available in 28pin DIL and 20pin SSOP packages. They require only a few discrete components.

• Ultra low cost single chip solution
• Low speed USB, can use a low cost resonator
• True USB 2.0 HID plug and play
• Security key, product name, manufacturer name, serial number, GUID configurable from USB interface
• No vendor ID /product ID registration required
• Authentication success indication
• All systems go indication
• Tx / Rx indication
• Five digital, analog, interrupt virtual I/O
• 122byte EEPROM

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Embedded Design & Development