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MAX810_EXR+T Datasheet(PDF) 1 Page - Maxim Integrated Products

Part # MAX810_EXR+T
Description  3-Pin Microprocessor Reset Circuits
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX810_EXR+T Datasheet(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX803/MAX809/MAX810 are microprocessor (µP)
supervisory circuits used to monitor the power supplies
in µP and digital systems. They provide excellent circuit
reliability and low cost by eliminating external compo-
nents and adjustments when used with +5V, +3.3V,
+3.0V, or +2.5V powered circuits.
These circuits perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after VCC has risen above the reset thresh-
old. Reset thresholds suitable for operation with a vari-
ety of supply voltages are available.
The MAX803 has an open-drain output stage, while the
MAX809/MAX810 have push-pull outputs. The
MAX803’s open-drain RESET output requires a pullup
resistor that can be connected to a voltage higher than
VCC. The MAX803/MAX809 have an active-low RESET
output, while the MAX810 has an active-high RESET
output. The reset comparator is designed to ignore fast
transients on VCC, and the outputs are guaranteed to
be in the correct logic state for VCC down to 1V.
Low supply current makes the MAX803/MAX809/
MAX810 ideal for use in portable equipment. The
MAX803 is available in a 3-pin SC70 package, and the
MAX809/MAX810 are available in 3-pin SC70 or SOT23
packages.
Applications
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
Automotive
____________________________Features
♦♦ Precision Monitoring of +2.5V, +3V, +3.3V, and
+5V Power-Supply Voltages
♦♦ Fully Specified Over Temperature
♦♦ Available in Three Output Configurations
Open-Drain RESET Output (MAX803)
Push-Pull RESET Output (MAX809)
Push-Pull RESET Output (MAX810)
♦♦ 140ms min Power-On Reset Pulse Width
♦♦ 12µA Supply Current
♦♦ Guaranteed Reset Valid to VCC = +1V
♦♦ Power Supply Transient Immunity
♦♦ No External Components
♦♦ 3-Pin SC70 and SOT23 Packages
3-Pin Microprocessor Reset Circuits
________________________________________________________________
Maxim Integrated Products
1
TOP VIEW
RESET (RESET)
1
GND
VCC
MAX803
MAX809
MAX810
SC70-3/SOT23-3
2
3
( ) ARE FOR MAX810.
MAX803 AVAILABLE IN SC70-3 ONLY.
MAX803
MAX809
VCC
VCC
RPULLUP*
RESET
RESET
INPUT
GND
VCC
GND
*MAX803 ONLY
μP
Pin Configuration
Typical Operating Circuit
19-0344; Rev 7; 2/10
Note:
These parts are offered in 2.5k reels, and must be
ordered in 2.5k increments. Insert the desired suffix letter from
the Selector Guide into the blank to complete the part number.
All versions of these products may not be available at the time
of announcement. Contact factory for availability.
Devices are available in both leaded and lead-free packaging.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
MAX803_EXR-T
-40°C to +125°C
3 SC70
MAX803_EXR+T
-40°C to +125°C
3 SC70
MAX809_EXR-T
-40°C to +125°C
3 SC70
MAX809_EXR+T
-40°C to +125°C
3 SC70
MAX809_EUR-T
-40°C to +105°C
3 SOT23
MAX809_EUR+T
-40°C to +105°C
3 SOT23
MAX810_EXR-T
-40°C to +125°C
3 SC70
MAX810_EXR+T
-40°C to +125°C
3 SC70
MAX810_EUR-T
-40°C to +105°C
3 SOT23
MAX810_EUR+T
-40°C to +105°C
3 SOT23


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