Описание
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 (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. Note: Designers must have the following documents to fully use all the features of this device. This data sheet contains pin descriptions, feature overviews, and electrical specifications. Errata sheets contain deviations from published specifications. The user"s guides offer detailed information about device features and operation. MAXQ2000 IC data sheet MAXQ2000 revision-specific errata sheet (Click here for availability) MAXQ Family User"s Guide MAXQ Family User"s Guide: MAXQ2000 Supplement
- 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)
- 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
- 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
- Bootloader Simplifies Programming
- In-System Programming Through JTAG
- Supports In-Application Programming of Flash Memory
- 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
