The MAXQ613 operates from a 1.7V to 3.6V external supply, which allows it to be powered directly from two standard AA cells. Since the end-of-life voltage for a AA cell pair is approximately 1.6V, this supply range allows 95% of the battery capacity to be utilized. It effectively increases battery life by up to 15% over conventional solutions (which only operate down to 2.0V), thus extending operation by several months in many applications. To further increase battery life, the MAXQ613 consumes an ultra-low 200nA (typ) in stop-mode operation.
This highly integrated microcontroller includes a USART, an SPI(TM) master/slave communication port, an IR module with carrier-frequency generation, and up to 24 general-purpose I/O pins. Additionally, the MAXQ613 provides a secure memory-management unit (MMU) to prevent device cloning and unauthorized access to sensitive application code. It is ideally suited for remote controls, security systems, thermostats, blood pressure monitors, and a wide variety of other consumer and medical applications.
The MAXQ613 is available in a 32-pin TQFN/LQFP or 44-pin TQFN/TQFP; it is also available as bare die (contact the factory for detailed information and availability). Prices start at $1.32 (1000-up, FOB USA). To speed designs, Maxim’s website offers many application notes and software examples to use with the MAXQ(R) family of products (www.maxim-ic.com/MAXQ).