INSIDE Secure has introduced the AT90SO72, a secure, embedded microcontroller specifically tailored to meet the needs of USB authentication token applications.

The product’s wide operating temperature, flexible I/O configurations and optimized cost make it ideal for use in USB tokens. Applications that need sensitive data protection and cryptography computation include smart meters, secure data storage, machine-to-machine (M2M) systems and others.

The AT90SO72 offers a USB 2.0 interface supporting both full-speed and cost-effective low-speed modes. Both modes are available in configurations with no external resonator, which reduces the bill of materials. The interface supports six software configurable data transfer endpoints with in-or-out directions for bulk, interrupt or isochronous transfers.  

The flexible I/O options also include a master/slave SPI controller, an I2C (two-wire) controller, up to seven GPIO lines and an ISO 7816 interface. In addition the AT90SO72 includes a built-in variable frequency oscillator to reduce system cost and size and to increase security.

Christian Fleutelot, executive VP of digital security at INSIDE Secure said, “Based on customer feedback, INSIDE has optimized the size and cost of the AT90SO72 to make it particularly well suited as a secure microcontroller to drive USB authentication tokens. At the same time, we’ve included a robust assortment of I/O interfaces and package options that manufacturers will find attractive for a broad range of uses.”