Date: 02/07/2010

16-bit MCU from Maxim provides security authentication and consumes 300nA

Maxim has introduced the MAXQ1004, a low-power 16-bit microcontroller that can add secure authentication to any application. It is designed using the security technology as in Maxim's ultra-secure financial terminal microcontrollers. This MCU integrates a random-number generator (RNG) and a high-speed AES encryption engine supporting 128-, 192-, and 256-bit key sizes. These features enable secure authentication and communication schemes, while resisting analytical and cryptanalysis attacks. This type of authentication is suggested for protecting revenue streams (battery pack authentication), validating peripherals (video game controllers), and implementing secure communication schemes (automotive keyfobs).

The MAXQ1004 has a 16KB integrated flash memory and multiple communication options (including SPI and 1-Wire interfaces) and is flexible enough to be programmed for any kind of secure authentication application.

The MAXQ1004 consumes only 3.75mA while operating at 6MHz and consumes only 300nA in power stop mode. It is therefore suggested for applications like digital still cameras. The MCU's effect on overall battery consumption is negligible. Maxim says for coin-cell-powered applications like keyfobs, the device provides extremely long battery life i.e. a MAXQ1004 running from a 64mAh battery with a 0.1% duty cycle will last for 1.8 years and with a duty cycle of 0.01%, the battery will last for over 10 years. It has a operating voltage range of 1.7V to 3.6V thus allows the MAXQ1004 to run from two AA batteries.

Package: Lead-free, 16-pin TQFN

Operating temperature range: -40°C to +85°C

Price: starts at US$2.50

Availability: An evaluation kit (MAXQ1004-KIT) will be available soon

For more information visit: www.maxim-ic.com