19-5117; Rev 2; 5/11
16-Bit Microcontrollers with
Infrared Module and Optional USB
General Description
The MAXQ612/MAXQ622 are low-power, 16-bit MAXQ
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
M
microcontrollers designed for low-power applications
including universal remote controls, consumer elec-
tronics, and white goods. Both devices use a low-
power, high-throughput, 16-bit RISC microcontroller.
Serial peripherals include two universal synchronous/
asynchronous receiver-transmitters (USARTs), two SPIK
master/slave communications ports, and an inter-inte-
S Can Be Powered from Battery (V ) or USB (V
)
DD DDB
S 33 Total Instructions for Simplified Programming
S Three Independent Data Pointers Accelerate Data
Movement with Automatic Increment/Decrement
2
grated circuit (I C) bus. The devices also incorporate
S Dedicated Pointer for Direct Read from Code Space
S 16-Bit Instruction Word, 16-Bit Data Bus
an IR module with carrier frequency generation and
flexible port I/O capable of multiplexed keypad control.
The MAXQ622 adds a universal serial bus (USB) with
integrated physical interface (PHY).
S 16 x 16-Bit General-Purpose Working Registers
S Secure MMU for Application Partitioning and IP
The MAXQ612/MAXQ622 include 128KB of flash memory
and 6KB of data SRAM. Intellectual property (IP) protection is
provided by a secure memory management unit (MMU) that
supports multiple application privilege levels and protects
code against copying and reverse engineering. Privilege
levels enable vendors to provide libraries and applications to
execute on the MAXQ612/MAXQ622, while limiting access
to only data and code allowed by their privilege level.
Protection
S Memory Features
128KB Flash Memory
512-Byte Sectors
20,000 Erase/Write Cycles per Sector
6KB Data SRAM
S USB Features (MAXQ622 Only)
USB 2.0 Full-Speed Compatible
Hardware Receive and Transmit Buffers for High
Throughput
For the ultimate in low-power battery-operated perfor-
mance, the devices include an ultra-low-power stop mode
(0.3FA typical). 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 operating voltage of
1.70V to 3.6V, and can also be powered from the USB.
Integrated Full-Speed Transceiver
On-Chip Termination and Pullup Resistors
S Additional Peripherals
Power-Fail Warning
Power-On Reset (POR)/Brownout Reset
Automatic IR Carrier Frequency Generation and
Modulation
Applications
Remote Controls
Two 16-Bit Programmable Timers/Counters with
Prescaler and Capture/Compare
Two SPI Communication Ports
Two USART Communication Ports
I C Port
Programmable Watchdog Timer
Battery-Powered Portable Equipment
Consumer Electronics
Home Appliances
2
White Goods
8kHz Nanopower Ring Oscillator Wake-Up Timer
Up to 56 General-Purpose I/O
Ordering Information/Selector Guide appears at end of
data sheet.
S Low Power Consumption
0.3µA (typ), 3µA (max) in Stop Mode
T
A
= +25NC, Power-Fail Monitor Disabled
4.8mA (typ) at 12MHz, 520µA (typ) at 1MHz in
Active Mode
MAXQ is a registered trademark of Maxim Integrated
Products, Inc. SPI is a trademark of Motorola, 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.
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