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:
关键特性
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
应用
汽车电子
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
MAX483ESA+T MAXIM 14+ SOP
DS1339U-33 MAXIM 12+ SOP
DS1996L-F5 MAXIM 12+ 电池
MAX813LESA+T MAXIM 14+ SOP8
MAX488ESA MAXIM 13+ SOP
MAX489EESD+T MAXIM 14+ SOP14
MAX4080TASA MAXIM 12+ SOP8
MAX811TEUS+T MAXIM 14+ SOT143
MAX811REUS+T MAXIM 14+ SOT143
MAX811SEUS+T MAXIM 14+ SOT143
DS1337S+T MAXIM 14+ SOP
MAX487EESA+T MAXIM 14+ SOP8
MAX487ESA+T MAXIM 14+ SOP8
MAX5971AETI+T MAXIM 14+ QFN
DS2438Z+T MAXIM 14+ SOP
MAX202EESE+T MAXIM 14+ SOP16
MAX3072EESA+T MAXIM 14+ SOP8
MAX3471EUA+T MAXIM 14+ MSOP8
MAX1480BEPI+ MAXIM 14+ DIP
MAX4678EUE+T MAXIM 14+ TSSOP
DS1340Z-33 MAXIM 14+ SOP
DS1302Z+T MAXIM 14+ SOP
DS1302ZN+T MAXIM 14+ SOP
DS1307Z+T MAXIM 14+ SOP
DS1307ZN+T MAXIM 14+ SOP
MAX232ESE+T MAXIM 14+ SOP
MAX6675ISA+T MAXIM 14+ SOP
MAX1487EESA+T MAXIM 14+ SOP8
MAX3100EEE+T MAXIM 14+ SSOP
DS2431P+T MAXIM 14+ TSOC6
DS18B20U+T MAXIM 14+ TO92
DS21354LN MAXIM 14+ QFP
MAX202ECSE+T MAXIM 14+ SOP
MAX485ESA+T MAXIM 14+ SOP
DS1822Z+T MAXIM 14+ SOP
DS1302S MAXIM 14+ SOP
DS1390U-33+ MAXIM 14+ SOP
MAX3387EEUG+T MAXIM 14+ TSSOP
MAX704TCSA MAXIM 14+ SOP
MAX5980GTJ+T MAXIM 14+ QFN32
DS1338Z-33+T MAXIM 14+ SOP
MAX4003EUA+T MAXIM 14+ SOP
MAX4638EUE MAXIM 14+ TSSOP
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