UTC812 Datasheet, PDF (1/5 Pages) Unisonic Technologies – MICROPROCESSOR RESET IC

UNISONIC TECHNOLOGIES CO., LTD
UTC812
MICROPROCESSOR RESET IC
„ DESCRIPTION
The UTC UTC812 is a microprocessor (µP) reset circuit designed
to monitor the power supplies in µP and digital systems.
The UTC UTC812 has push-pull output and active-low RESET
output.
This device provides customers with perfect system reliability and
low cost which are achieved by to no external component
requirement and adjustments when used with +5V, +3.3V, +3.0V-
powered circuits.
This circuit performs a single function: it asserts a reset signal
whenever the V_CC supply voltage declines below a preset threshold,
keeping it asserted for at least 140ms after V_CC has risen above the
reset threshold. Reset thresholds suitable for operation with a variety
of supply voltages are available.
The reset comparator can be used to ignore fast transients on
V_CC, and outputs are guaranteed to be in the correct logic state for
V_CC down to 1V.
In applications, the UTC812 is suitable for computers, controllers,
intelligent instruments, critical microprocessors, microcomputer
power monitoring, portable, or battery-powered equipments and
automotive device.
„ FEATURES
* Supply Current: 10µA
* Precision Monitoring of +5V, +3.3V, +3.0V Powered Circuits
* With the Two Configurations In The Following:
Push-Pull RESET Output
* Power-On Reset Pulse Width: 140ms (MIN.)
* Outputs Guaranteed To Be In The Correct Logic State for V_CC
Down to 1V.
* Required No External Components
* Power Supply Transient Immunity
„ ORDERING INFORMATION
Ordering Number
UTC812G-X-AE2-R
Package
SOT-23-3
Packing
Tape Reel
UTC812G-X-AE2-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Halogen Free
(1) R: Tape Reel
(2) AE2: SOT-23-3
(3) Refer to Marking Information
(4) G: Halogen Free
CMOS IC
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 5
Ver.A