MAX807LCWE+T

MAXIM INTEGRATED PRODUCTS  MAX807LCWE+T  芯片, 微处理器监控器, 5.5V, WSOIC-16

The is a microprocessor µP supervisory circuit with ±1.5% reset accuracy in 16 pin WSOIC package. It provides power supply monitoring, back-up battery switchover and program execution watchdog functions in µP systems. This device reduces complexity and number of components needed to monitor power supply and battery control functions in µP systems. A 70µA supply current makes the MAX807L ideal for use in battery powered equipment while 2ns chip enable propagation delay and 250mA output current capability 20mA in battery-backup mode make it suitable for larger and higher performance equipment. It has active-high, active-low push-pull reset output. The active-low RESET output is asserted during power-up, power-down and brownout conditions needs to be in the correct state for VCC down to 1V. The MAX807L is used in back-up battery switchover for CMOS RAM, real time clocks, computers, controllers, intelligent instruments, µPs or other low power logic applications.

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Supply voltage range from 0V to 5.5V

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Operating temperature range from 0°C to 70°C

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Write protection of CMOS RAM or EEPROM

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Manual reset input

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Two stage power fail warning

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Independent watchdog timer

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BATT OK status flag indicates that the backup battery voltage is above +2.275V

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MaxCap and SuperCap compatible

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Precision 4.675V voltage monitoring and 200ms power-OK/reset time delay

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Onboard gating of chip enable signals, 2ns CE gate propagation delay