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83CXXX Datasheet Preview

83CXXX Datasheet

VOLTAGE MONITORS

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UNISONIC TECHNOLOGIES CO., LTD
83CXXX
Preliminary
4-PIN µP VOLTAGE MONITORS
WITH MANUAL RESET INPUT
DESCRIPTION
The UTC 83CXXX is a microprocessor supervisory circuit. It has
an active-low RESET and push-pull outputs. The circuit can assert
a reset signal as long as the VCC power supplies voltage dropping
below a preset threshold and it keep the reset signal for at least
140ms when VCC has risen above the reset threshold. The reset
threshold can be operated with multi-supply voltages.
The UTC 83CXXX provides the circuit with perfect reliability and
low cost through eliminating external components and adjustments
when applied with +5V, +3.3V, +3.0V power supply The UTC
83CXXX also provide a de-bounced manual reset input.
The reset comparator can work despite of fast transients on VCC,
and the outputs are guaranteed to be in the right logic state while
VCC is down to 1V.
In applications, the UTC 83CXXX is suitable for computers,
intelligent instruments, controllers, critical microprocessor and
microcomputer power monitors, portable or battery-powered
equipment, automotive.
FEATURES
* +3V, +3.3V, and +5V power-supply voltages
* Full temperature rated
* Supply current: 5µA
* Available in configuration: push-pull RESET output
* 140ms minimum power-on reset pulse width
* Guaranteed reset to VCC = +1V
* Power supply transient Immunity
* Eliminating external components
* Manual reset input
ORDERING INFORMATION
Ordering Number
83CXXXG-AD4-R
Note: XXX: Output Voltage, refer to Marking Information.
Package
SOT-143
CMOS IC
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 5
QW-R502-353.c




Unisonic Technologies

83CXXX Datasheet Preview

83CXXX Datasheet

VOLTAGE MONITORS

No Preview Available !

83CXXX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
Preliminary
SOT-143
B: 2.93V
C: 3.08V
PIN CONFIGURATION
MARKING
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
PIN NAME
GND
RESET
MR
VCC
Ground
DESCRIPTION
RESET output remains low while VCC is below the reset threshold, and for at least
140ms after VCC rises above the reset threshold.
Manual reset input. A logic low on MR asserts reset. Reset remains asserted as
long as MR is low and for at least 140ms after MR returns high, This active-low
input has an internal 20kpull-up resistor. It can be driven from a TTL or
CMOS-logic line, or shorted to ground with a switch. Leave open if unused.
Supply voltage (+5V, +3.3V, +3.0V)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R502-353.c


Part Number 83CXXX
Description VOLTAGE MONITORS
Maker Unisonic Technologies
Total Page 5 Pages
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