SUPPLY VOLTAGE MONITOR ISSUE 1 - DECEMBER 1997 DEVICE DESCRIPTION The ZSH330 is a three terminal under voltage monitor circuit for use in microprocessor systems.
The threshold voltage of the device has been set to 3.
1 volts making it ideal for 3.
3 volt circuits.
Included in the device is a precise voltage reference and a comparator with built in hysteresis to prevent erratic operation.
The ZSH330 features an open collector output capable of sourcing at least l0mA which only requires a single external resistor to interface to following circuits.
Operation of the device is guaranteed from one volt upwards, from this level to the device threshold voltage the output is held high providing a powe...

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