19-4604; Rev 3; 3/12
16-Bit Microcontroller with Infrared Module
MAXQ61H
General Description
Features
o High-Performance, Low-Power 16-Bit RISC Core
®
The MAXQ61H is a low-power, 16-bit MAXQ micro-
controller designed for low-power applications includ-
ing universal remote controls, consumer electronics,
and white goods. The MAXQ61H combines a powerful
16-bit RISC microcontroller and integrated peripherals
including an IR module with carrier frequency genera-
tion and flexible port I/O capable of multiplexed keypad
control.
o DC to 12MHz Operation Across Entire Operating
Range
o 1.70V to 3.6V Operating Voltage Range
o 33 Total Instructions for Simplified Programming
o Three Independent Data Pointers Accelerate Data
The MAXQ61H includes 36KB of ROM memory and
1.28KB of data SRAM.
Movement with Automatic Increment/Decrement
o Dedicated Pointer for Direct Read from Code Space
o 16-Bit Instruction Word, 16-Bit Data Bus
For the ultimate in low-power battery-operated perfor-
mance, the MAXQ61H includes an ultra-low-power stop
mode (0.2µA, typ). In this mode, the minimum amount
of circuitry is powered. Wake-up sources include exter-
nal interrupts, the power-fail interrupt, and a timer inter-
rupt. The microcontroller runs from a wide 1.70V to 3.6V
operating voltage.
o 16 x 16-Bit General-Purpose Working Registers
o Memory Features
36KB ROM
1.28KB Data SRAM
o Additional Peripherals
Applications
Power-Fail Warning
Power-On Reset/Brownout Reset
Automatic IR Carrier Frequency Generation and
Modulation
Two 16-Bit, Programmable Timers/Counters with
Prescaler and Capture/Compare
Programmable Watchdog Timer
8kHz Nanopower Ring Oscillator Wake-Up Timer
Up to 24 (MAXQ61HA) General-Purpose I/Os
Remote Controls
Battery-Powered Portable Equipment
Consumer Electronics
Home Appliances
White Goods
o Low Power Consumption
0.2µA (typ), 2.0µA (max) in Stop Mode
T = +25°C, Power-Fail Monitor Disabled
A
Pin Configuration appears at end of data sheet.
2.0mA (typ) at 12MHz in Active Mode
Ordering Information/Selector Guide
OPERATING
VOLTAGE (V)
PROGRAM
MEMORY (KB)
DATA MEMORY
(KB)
PART
TEMP RANGE
PIN-PACKAGE
MAXQ61HA-0000+
MAXQ61HX-0000+*
0°C to +70°C
0°C to +70°C
1.70 to 3.6
36 ROM
36 ROM
1.28
1.28
32 TQFN-EP**
Bare die
1.70 to 3.6
Note: Contact factory for information about masked ROM devices.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Contact factory for availability.
**EP = Exposed pad.
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 be
simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata.
________________________________________________________________ Maxim Integrated Products
1
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.