This document is a Chinese datasheet for the Maxim Integrated Products MAX7391, a microcontroller monitoring device with clock generation and power-fail…
The MAX7391 is a quick-switch clock generator designed to replace ceramic resonators and crystal oscillators. It provides a stable clock source for microcontrollers in 3.3V and 5V applications while integrating reset and power-fail detection functions. The device features programmable power-fail functionality that can monitor external voltages or the VCC supply, offering early warning of power failures. This manual is written in Chinese.
| Operating Supply Voltage | 2.7V to 5.5V |
|---|---|
| Clock Frequency Range | 1MHz to 16MHz |
| Operating Temperature Range | -40°C to +125°C |
| Clock Accuracy (Full Temp) | ±4% |
| Operating Supply Current | 5.5mA (typical at 12MHz) |
| Package Type | 8-pin µMAX |
The device operates with a supply voltage ranging from 2.7V to 5.5V.
Yes, it is designed to replace ceramic resonators and crystal oscillators.
The clock output frequency is halved to allow the microcontroller to enter a low-power state.