MAX31782系统管理微控制器应用电路

The MAX31782 provides a complete solution for the monitoring and controlling of complex system physical health characteristics based on a high-performance, MAXQ20, 16-bit microcontroller core with generous amounts of flash program/data and RAM data memory.

I/O resources include an accurate measurement system for temperature and voltage, PWM outputs, timer inputs, and GPIO to support monitoring and controlling critical system parameters such as temperature, voltage, fan speed, and chassis intrusion. Direct connection of diode-connected transistors used as remote temperature sensors is supported as well as expansion to a virtually unlimited number of external digital temperature sensor ICs using the on-chip master I²C interface. An independent slave I²C interface facilitates communication to a host microprocessor in addition to password-protected in-system reprogramming of the on-chip flash.

Ease of development is supported with highly versatile C-compilers and development software that programs flash and performs in-circuit debug through the integrated JTAG interface and associated hardware.

All these features combined make the device a highly flexible platform, allowing the designer to easily create a customized complex system management solution.

Designers must have the following documents to fully use all the features of this device. The 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.