MAXQ2000

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-Complier (High-Speed/Density Code)
Program and Data Memor
  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^TM and 1-Wire® (-RAX 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 Interfac
  Bootloader Simplifies Programming
  In-System Programming Through JTAG
  Supports In-Application Programming of Flash Memory
Ultra-Low Power Consumption
  190A 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


Application

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


Specifications

Voltage Range on Any Pin Relative to
  Ground Except VDD...................................-0.5V to (VDDIO + 0.5)V
Voltage Range on VDD Relative to Ground .............-0.5V to +2.75V
Voltage Range on VDDIO Relative to Ground............-0.5V to +3.6V
Operating Temperature Range ............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature ...........................See IPC/JEDEC J-STD-020


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) or 132 (-RAX) segments. The MAXQ2000 is uniquely suited for the blood-glucose monitoring market, but can be used in any application that requires high performance and lowpower operation. The device can operate at a maximum of either 14MHz (VDD > 1.8V) or 20MHz (VDD > 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 MAXQ2000 ideal for battery-powered, portable equipment.