MAX6412 Maxim, MAX6412 Datasheet
MAX6412
Manufacturer Part Number
MAX6412
Description
Low-Power / Single/Dual-Voltage uP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay
Manufacturer
Maxim
Datasheet
1.MAX6412.pdf
(12 pages)
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The MAX6412–MAX6420 low-power microprocessor
supervisor circuits monitor system voltages from 1.6V to
5V. These devices are designed to assert a reset signal
whenever the V
its reset threshold or the manual reset input is asserted.
The reset output remains asserted for the reset timeout
period after V
threshold and the manual reset input is deasserted. The
reset timeout is externally set by a capacitor to provide
more flexibility.
The MAX6412/MAX6413/MAX6414 feature fixed thresholds
from 1.575V to 5V in approximately 100mV increments and
a manual reset input. The MAX6415/MAX6416/MAX6417
are offered with an adjustable reset input that can monitor
voltages down to 1.26V and the MAX6418/MAX6419/
MAX6420 are offered with one fixed input and one
adjustable input to monitor dual-voltage systems.
The MAX6412/MAX6415/MAX6418 have an active-low,
push-pull reset output. The MAX6413/MAX6416/
MAX6419 have an active-high, push-pull reset output
and the MAX6414/MAX6417/MAX6420 have an active-
low, open-drain reset output. All of these devices are
offered in a SOT23-5 package and are fully specified
from -40°C to +125°C.
19-2336; Rev 1; 8/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Low-Power, Single/Dual-Voltage µP Reset Circuits
Automotive
Medical Equipment
Intelligent Instruments
Portable Equipment
Battery-Powered Computers/Controllers
Embedded Controllers
Critical µP Monitoring
Set-Top Boxes
Computers
with Capacitor-Adjustable Reset Timeout Delay
( ) FOR THE MAX6412/MAX6413/MAX6414.
TOP VIEW
CC
CC
RESET IN (MR)
RESET/RESET
________________________________________________________________ Maxim Integrated Products
supply voltage or RESET IN falls below
and RESET IN rise above the reset
GND
General Description
1
2
3
MAX6412–
SOT23-5
MAX6420
Pin Configuration
Applications
5
4
V
SRT
CC
o Monitor System Voltages from 1.6V to 5V
o Capacitor-Adjustable Reset Timeout Period
o Manual Reset Input (MAX6412/MAX6413/MAX6414)
o Adjustable Reset Input Option
o Dual-Voltage Monitoring
o Low Quiescent Current (1.7µA, typ)
o 3 RESET Output Options
o Guaranteed Reset Valid to V
o Power-Supply Transient Immunity
o Small SOT23-5 Packages
Note: The MAX6412/MAX6413/MAX6414 and MAX6418/
MAX6419/MAX6420 are available with factory-set V
thresholds from 1.575V to 5.0V in approximately 0.1V incre-
ments. Insert the desired nominal reset threshold suffix (from
Table 1) into the blanks following the letters UK. There are 33
standard versions with a required order increment of 2500
pieces. Sample stock is generally held on standard versions
only (see Standard Versions Table). Required order increment is
10,000 pieces for nonstandard versions. Contact factory for
availability. All devices are available in tape-and-reel only.
Typical Operating Circuit appears at end of data sheet.
Selector Guide appears at end of data sheet.
MAX6412UK_ _-T
MAX6413UK_ _-T
MAX6414UK_ _-T
MAX6415UK-T
MAX6416UK-T
MAX6417UK-T
MAX6418UK_ _-T
MAX6419UK_ _-T
MAX6420UK_ _-T
(MAX6415–MAX6420)
(MAX6418/MAX6419/MAX6420)
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
PART
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
CC
= 1V
PIN-PACKAGE
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
Features
CC
reset
1
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