MAXQ618

16-Bit Microcontroller with Infrared Module

1

General Description

troller designed for low-power applications including uni-

versal remote controls, consumer electronics, and white

goods. The device combines a powerful 16-bit RISC

microcontroller and integrated peripherals including two

universal synchronous/asynchronous receiver-transmit-

ters (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 flash memory and 2KB of data

SRAM. The MAXQ61C is a ROM version of this device.

For the ultimate in low-power battery-operated perfor-

mance, 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 micro-

controller 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

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High-Performance, Low-Power, 16-Bit RISC Core

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DC to 12MHz Operation Across Entire Operating Range

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1.70V to 3.6V Operating Voltage

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33 Total Instructions for Simplified Programming

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Three Independent Data Pointers Accelerate Data

Movement with Automatic Increment/Decrement

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Dedicated Pointer for Direct Read from Code Space

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16-Bit Instruction Word, 16-Bit Data Bus

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16 x 16-Bit General-Purpose Working Registers

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Memory Features



80KB Flash Memory



2KB Data SRAM

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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

S

Low Power Consumption



0.2µA (typ), 2.0µA (max) in Stop Mode,



2.0mA (typ) at 12MHz in Active Mode

Block Diagram

19-5778; Rev 1; 7/12

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

MAXQ is a registered trademark of Maxim Integrated Products, Inc.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may

16-BIT MAXQ

RISC CPU

2KB

DATA SRAM

2 x USART

8kHz NANO

RING

2 x

16-BIT TIMER

GPIO

VOLTAGE

MONITOR

CLOCK

80KB FLASH

MEMORY

IR TIMER

WATCHDOG

1.5KB

UTILITY ROM

SPI

IR DRIVER

REGULATOR

MAXQ618

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.