MAXQ2000

Rev 2; 12/04 Low-Power LCD Microcontroller 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) 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 parts ideal for battery-powered, portable equipment. 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 Memory 32kWords Flash Memory, Mask ROM for HighVolume Applications 10,000 Flash Write/Erase Cycles 1kWord of Intern...