MAX704R - 3.0V/3.3V微处理器监控电路

MAX704R是Maxim美信半导体公司的一款美信芯片产品，MAX704R是3.0V/3.3V微处理器监控电路，本站介绍了MAX704R的封装应用图解、特点和优点、功能等，并给出了与MAX704R相关的Maxim元器件型号供参考。

MAX704R - 3.0V/3.3V微处理器监控电路 - 美信芯片 - 业内首款电池备份监控电路，用于3.3V/3.0V系统 - 美信半导体

产品概述

These microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in µP systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components.

These devices are designed for use in systems powered by 3.0V or 3.3V supplies. See the selector guide in the back of this data sheet for similar devices designed for 5V systems. The suffixes denote different reset threshold voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see Reset Threshold section in the Detailed Description). All these parts are available in 8-pin DIP and SO packages. Functions offered in this series are as follows:

Part Active-Low Reset Active-High Reset Watchdog Input Manual Reset Input Backup-Battery Switch Power-Fail Threshold Accuracy Power-Fail Comparator Reset Window MAX690 √ √ √ ±4% √ ±75mV MAX704 √ √ √ ±4% √ ±75mV MAX802 √ √ √ ±2% √ ±2% MAX804 √ √ √ ±2% √ ±2% MAX805 √ √ √ ±4% √ ±75mV MAX806 √ √ √ ±2% √ ±2%

关键特性

以下关键特性由Maxim美信半导体提供：

Active-Low RESET and RESET Outputs

Manual Reset Input

Precision Supply-Voltage Monitor

200ms Reset Time Delay

Watchdog Timer (1.6sec timeout)

Battery-Backup Power Switching-Battery Can Exceed VCC in Normal Operation

40µA VCC Supply Current

1µA Battery Supply Current

Voltage Monitor for Power-Fail or Low-Battery Warning

Guaranteed Active-Low RESET Assertion to VCC = 1V

8-Pin DIP and SO Packages

热门应用

电池供电计算机/控制器

精确的µP监控

嵌入式控制器

智能仪表

便携式设备

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