MAX6326 Maxim, MAX6326 Datasheet
MAX6326
Manufacturer Part Number
MAX6326
Description
3-Pin / Ultra-Low-Power SC70/SOT P Reset Circuits
Manufacturer
Maxim
Datasheet
1.MAX6326.pdf
(8 pages)
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The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348 microprocessor (µP) supervisory circuits moni-
tor the power supplies in µP and digital systems. These
devices provide excellent circuit reliability and low cost
by eliminating external components and adjustments
when used with 2.5V, 3V, 3.3V, and 5V powered circuits.
These circuits perform a single function: they assert a
reset signal whenever the V
below a preset threshold, keeping it asserted for at least
100ms after V
The only difference between the devices is their output.
The MAX6326/MAX6346 (push-pull) and MAX6328/
MAX6348 (open-drain) have an active-low reset output.
The MAX6327/MAX6347 have an active-high push-pull
reset output. All of these parts are guaranteed to be in
the correct state for V
tor is designed to ignore fast transients on V
thresholds are factory-trimmable between 2.2V and
4.63V, in approximately 100mV increments. Twenty-one
standard versions are available. Contact the factory for
availability of nonstandard versions.
Ultra-low supply currents (1µA max for the MAX6326/
MAX6327/MAX6328) make these parts ideal for use in
portable equipment. All six devices are available in
space-saving SOT23 and SC70 packages.
19-1294; Rev 3; 1/00
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Computers
Controllers
Critical µP and µC
Power Monitoring
TOP VIEW
( ) ARE FOR THE MAX6327/MAX6347.
(RESET) RESET
CC
GND
________________________________________________________________ Maxim Integrated Products
has risen above the reset threshold.
CC
2
1
General Description
down to 1V. The reset compara-
SOT23-3/SC70-3
Intelligent Instruments
Automotive
Portable/Battery-Powered
Equipment
Pin Configuration
CC
MAX6326
MAX6327
MAX6328
MAX6346
MAX6347
MAX6348
supply voltage declines
3-Pin, Ultra-Low-Power SC70/SOT
Applications
3
V
CC
CC
. Reset
o Ultra-Low 1µA (max) Supply Current
o Precision Monitoring of 2.5V, 3V, 3.3V, and 5V
o Reset Thresholds Available from 2.2V to 4.63V
o Fully Specified Over Temperature
o 100ms (min) Power-On Reset Pulse Width
o Low Cost
o Available in Three Versions: Push-Pull RESET,
o Power-Supply Transient Immunity
o No External Components
o 3-Pin SC70/SOT23 Packages
o Pin Compatible with MAX803/MAX809/MAX810
Selector Guide appears at end of data sheet.
†The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348 are available in factory-set V
2.2V to 4.63V, in approximately 0.1V increments. Choose the
desired reset-threshold suffix from Table 1 and insert it in the
blank spaces following “R.” There are 21 standard versions with
a required order increment of 2500 pieces. Sample stock is gen-
erally held on the standard versions only (see the Selector
Guide). Required order increment is 10,000 pieces for nonstan-
dard versions (Table 2). Contact factory for availability. All
devices available in tape-and-reel only.
MAX6326XR_ _-T
MAX6326UR_ _-T
MAX6327XR_ _-T
MAX6327UR_ _-T
MAX6328XR_ _-T
MAX6328UR_ _-T
MAX6346XR_ _-T
MAX6346UR_ _-T
MAX6347XR_ _-T
MAX6347UR_ _-T
MAX6348XR_ _-T
MAX6348UR_ _-T
(MAX6326/MAX6327/MAX6328)
Power-Supply Voltages
Push-Pull RESET, and Open-Drain RESET
PART
†
µP Reset Circuits
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
TEMP. RANGE
CC
reset thresholds from
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
PIN-PACKAGE
Features
1
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