MAXQ305

The MAXQ305 is a reduced supply voltage, low-power, 16-bit MAXQ® microcontroller designed for low-power applications including universal remote controls, consumer electronics, and white goods. The MAXQ305 combines a powerful 16-bit RISC microcontroller and integrated peripherals including two USART ports and a SPI master/slave communications port, along with an IR module with carrier frequency generation and flexible port I/O capable of multiplexed keypad control. The MAXQ305 includes 80KB of flash program memory and 2KB of data SRAM.

The MAXQ305 can run from a low supply input voltage of 0.9V, allowing the microcontroller to be powered by a single alkaline AA battery. Code execution can run at up to a 12MHz rate, or the execution speed may optionally be decreased to 4MHz (Green Mode) to reduce power consumption. In this mode, the IR timer and modulator continue to run at 12MHz for maximum compatibility with existing IR application code.

For the ultimate in low-power battery-operated performance, the MAXQ305 includes an ultra-low-power stop mode (0.4µA, typ). In this mode, the minimum amount of circuitry is powered. Wake-up sources include external interrupts, the power-fail interrupt, and the wake-up timer interrupt.

Applications

• Battery-Powered Portable Equipment
• Consumer Electronics
• Home Appliances
• Remote Controls
• White Goods