MAXQ2000 Low-Power LCD Microcontroller

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The MAXQ2000 microcontroller is a low-power, 16-bit device that incorporates a liquid-crystal display (LCD) interface that can drive up to 100 (-RBX/-RBX+) or 132 (-RAX/-RAX+/-RFX/-RFX+) segments. The MAXQ2000 is uniquely suited for the blood-glucose monitoring market, but can be used in any application that requires high performance and low-power operation. The device can operate at a maximum of either 14MHz (V_DD > 1.8V) or 20MHz (V_DD > 2.25V). The MAXQ2000 has 32kWords of flash memory, 1kWord of RAM, three 16-bit timers, and one or two universal synchronous/asynchronous receiver/transmitters (UARTs). Flash memory aids prototyping and low-volume production. The microcontroller core is powered by a 1.8V supply, with a separate I/O supply for optimum flexibility. An ultra-low-power sleep mode makes these parts ideal for battery-powered, portable equipment.

Key Features

Applications/Uses

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

DC to 20MHz Operation, Approaching 1MIPS per MHz
Dual 1.8V Core/3V I/O Enables Low Power/Flexible Interfacing
33 Instructions, Most Single Cycle
Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement
16-Level Hardware Stack
16-Bit Instruction Word, 16-Bit Data Bus
16 x 16-Bit, General-Purpose Working Registers
Optimized for C-Compiler (High-Speed/Density Code)

Program and Data Memory

32kWords Flash Memory, Mask ROM for High-Volume Applications
10,000 Flash Write/Erase Cycles
1kWord of Internal Data RAM
JTAG/Serial Boot Loader for Programming

Peripheral Features

Up to 50 General-Purpose I/O Pins
100/132 Segment LCD Driver
- Up to 4 COM and 36 Segments
- Static, 1/2, and 1/3 LCD Bias Supported
- No External Resistors Required
SPI™ and 1-Wire® (-RAX/RAX+/-RFX/-RFX+ Only) Hardware I/O Ports
One or Two Serial UARTs
One-Cycle, 16 x 16 Hardware Multiply/Accumulate with 48-Bit Accumulator
Three 16-Bit Programmable Timers/Counters
8-Bit, Subsecond, System Timer/Alarm
32-Bit, Binary Real-Time Clock with Time-of-Day Alarm
Programmable Watchdog Timer

Flexible Programming Interface

Bootloader Simplifies Programming
In-System Programming Through JTAG
Supports In-Application Programming of Flash Memory

Ultra-Low-Power Consumption

190µA typ at 8MHz Flash Operation, PMM1 at 2.2V
700nA typ in Lowest Power Stop Mode
Low-Power 32kHz Mode and Divide-by-256 Mode

	Battery-Powered and Portable Devices
	Consumer Electronics
	Data-Acquisition Systems and Data Loggers
	Electrochemical and Optical Sensors
	Gas and Chemical Sensors
	Home Appliances
	HVAC
	Industrial Control
	Medical Instrumentation
	Security Sensors
	Smart Transmitters
	Thermostats/Humidity Sensors

Key Specifications: 16-bit MAXQ RISC Microcontrollers

Part Number

Data Bus (Bits)

Peak MIPS

Internal Program Memory

Internal Data SRAM

Sync/Async Serial Ports

SPI Bus

I2C Bus

Timers

1-Wire

PWM Outputs

Data Pointers

Multiply/ Accumulate

Features

Internal Ring Oscillator

Watchdog

Power Fail Reset

Power Fail Interrupt

Power Mgmt. Mode

LCD Segments

Supply Voltage (V)

EV-Kit

RoHS Available

Package

Price^*

MAXQ2000

64kB Flash

2k Bytes

1
2

Yes

3x16-bit

Master

2
3

16x16

•	Multiple External Interrupts

•	Real-Time Clock

8MHz

Yes

100
132

1.8 to 2.75

Yes

LQFP/100
QFN/68
TQFN 8x8/56

$3.26 @ 1k

See All 16-bit MAXQ RISC Microcontrollers (6)

Notes:
^*This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.