MAX823L|MAX823M|MAX823R|MAX823S|MAX823T|MAX823Y|MAX823Z - 5引脚微处理器监控电路，带有看门狗定时器及手动复位

产品概述

The MAX823/MAX824/MAX825 microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on VCC.

Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table in the full data sheet). All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX824 offers a watchdog input and a complementary active-high reset. The MAX825 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.

关键特性

以下关键特性由Maxim美信半导体提供：

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies

Operating Current:

6µA (MAX823L/M) (SC70)

2µA (MAX825T/S/R/Z/Y) (SC70)

Fully Specified Over Temperature

140ms min Power-On Reset

Guaranteed active-low RESET Valid to VCC = 1V

Power-Supply Transient Immunity

Watchdog Timer with 1.6s Timeout (MAX823/MAX824)

Manual Reset Input (MAX823/MAX825)

No External Components

热门应用

汽车电子

计算机与控制器

精确的µP监控

嵌入式控制器

智能仪表

便携式电池供电设备

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