General Description The MAXQ61C is a low-power, 16-bit MAXQ® microcontroller designed for low-power applications including universal remote controls, consumer electronics, and white goods. The device combines a powerful 16-bit RISC microcontroller and integrated peripherals including two universal synchronous/asynchronous receivertransmitters (USARTs) and an 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 device includes 80KB of ROM memory and 2KB of data SRAM. For the ultimate in low-power battery-operated performance,the device includes an ultra-low-power stop mode (0.2μA typ). In this mode, the minimum amount of circuitry is powered. Wake-up sources include external interrupts, the power-fail interrupt, and a timer interrupt. The microcontroller runs from a wide 1.70V to 3.6V operating voltage.
Applications Remote Controls Battery-Powered Portable Equipment Consumer Electronics Home Appliances White Goods
Features S High-Performance, Low-Power, 16-Bit RISC Core S DC to 12MHz Operation Across Entire Operating Range S 1.70V to 3.6V Operating Voltage S 33 Total Instructions for Simplified Programming S Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement S Dedicated Pointer for Direct Read from Code Space S 16-Bit Instruction Word, 16-Bit Data Bus S 16 x 16-Bit General-Purpose Working Registers S Memory Features 80KB Application ROM 2KB Data SRAM S Additional Peripherals Power-Fail Warning Power-On Reset (POR)/Brownout Reset Automatic IR Carrier Frequency Generation and Modulation Two 16-Bit Programmable Timers/Counters with Prescaler and Capture/Compare One SPI Port and Two USART Ports Programmable Watchdog Timer 8kHz Nanopower Ring Oscillator Wake-Up Timer Up to 32 General-Purpose I/Os (J and X Versions Only) S Low Power Consumption 0.2μA (typ), 2.0μA (max) in Stop Mode, TA = +25NC, Power-Fail Monitor Disabled 2.0mA (typ) at 12MHz in Active Mode
