General Description

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

Features

? 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

??? SPITM 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

Applications

??? Medical Instrumentation

??? Battery-Powered and Portable Devices

??? Electrochemical and Optical Sensors

??? Industrial Control

??? Data-Acquisition Systems and Data Loggers

??? Home Appliances

??? Consumer Electronics

??? Thermostats/Humidity Sensors

??? Security Sensors

??? Gas and Chemical Sensors

??? HVAC

??? Smart Transmitters