厂商：Freescale
类别：16位单片机
厂商：Linear
类别：功率放大器
类别：RS485/RS422 收发器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：ATmega系列单片机
厂商：Yageo
类别：贴片/patch/主动天线
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封装管脚图产品描述The SGM803/SGM809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. They provide a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The output remains operational with V CC as low as 1V. The SGM803/SGM809 provides an active low reset signal ( ) while the SGM810 provides an active high signal (RESET) output. The SGM809/SGM810 has push-pull outputs, whereas the SGM803 has an open-drain output, which requires an external pull-up resistor. Eight reset threshold voltage options are available suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V supply voltages. The reset comparator features built-in glitch immunity, making it immune to fast transients on V CC . The low supply current of typically 13μA makes the SGM803/SGM809/SGM810 ideal for use in portable, battery operated equipment. All are specified over the extended -40 °С to + 125 °С temperature range.产品特性Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V, 5V OptionsSuperior Upgrade for MAX803/MAX809/MAX810 and ADM803/ADM809/ADM810Fully Specified over TemperatureLow Power Consumption (13 μ A TYP)Reset Assertion Down to 1V V CC150ms Min Power-On ResetOpen-Drain Output (SGM803)Push-Pull Output (SGM809)Push-Pull RESET Output (SGM810)- 40 °С to + 125 °С Operating Temperature RangeSmall PackagingSGM803 Available in SOT-23-3 and SOT-23SGM809 Available in SOT-23-3 and SOT-23SGM810 Available in SOT-23-3 and SOT-23