ZM33064C Zetex Semiconductors, ZM33064C Datasheet

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ZM33064C

Manufacturer Part Number

ZM33064C

Description

SUPPLY VOLTAGE MONITOR

Manufacturer

Zetex Semiconductors

Datasheets

1.ZM33064.pdf (5 pages)

2.ZM33064C.pdf (5 pages)

3.ZM33064C.pdf (5 pages)

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SUPPLY VOLTAGE

MONITOR

ISSUE 3 - NOVEMBER 1997

DEVICE DESCRIPTION

The ZM33064 is a three terminal under

vo l ta ge mo ni t or ci rc ui t f or use i n

microprocessor systems. The threshold

voltage of the device has been set to 4.6 volts

making it ideal for 5 volt circuits.

Included in the device is a precise voltage

reference and a comparator with built in

hysteresis to prevent erratic operation. The

ZM33064 features an open collector output

capable of sinking 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

low providing a power on reset function.

Should the supply voltage, once established,

at any time drop below the threshold level

then the output again will pull low.

The device is available in a TO92 package for

through hole applications as well as SO8 and

SOT223 for surface mount requirements.

SCHEMATIC DIAGRAM

4-89

FEATURES

APPLICATIONS

SO8, SOT223 and TO92 packages

Power on reset generator

Automatic reset generation

Low standby current

Guaranteed operation from 1 volt

Wide supply voltage range

Internal clamp diode to discharge delay

capacitor

4.6 volt threshold for 5 volt logic

20mV hysteresis prevents erratic operation

Microprocessor systems

Computers

Computer peripherals

Instrumentation

Automotive

Battery powered equipment

ZM33064

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