SC70, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Pin Description
PIN
MAX6384/
NAME
FUNCTION
MAX6381/
MAX6383
MAX6387/
MAX6389
MAX6386/
MAX6390
MAX6382
MAX6385
MAX6388
1
1
1
1
1
1
GND
Ground
Active-High Push-Pull Reset Output. RESET
changes from low to high when any
monitored voltage (V
or V
) drops
RESETIN
CC
—
2
—
2
—
2
RESET
below the reset threshold or MR is pulled low.
RESET remains high for the reset timeout
period after monitored voltages exceed the
reset thresholds or MR is released.
Active-Low Open-Drain/Push-Pull Reset
Output. RESET changes from high to low when
any monitored voltage (V or V
)
RESETIN
CC
drops below the reset threshold or MR is
pulled low. remains low for the reset
2
—
2
—
2
—
RESET
RESET
timeout period after the monitored voltages
exceed the reset thresholds or MR is released.
Open-drain requires an external pullup
resistor.
Active-Low Manual Reset Input. Drive low to
force a reset. Reset remains active as long
as MR is low and for the reset timeout period
after MR is released. Leave unconnected or
—
—
3
3
—
—
MR
connect to V
if unused. MR has an internal
CC
63kΩ (1.35kΩ for MAX6390) pullup resistor to
V
.
CC
Auxiliary Reset Input. High-impedance input
to the auxiliary reset comparator. Connect
RESET IN to the center point of an external
resistor voltage-divider network to set the
reset threshold voltage. Reset asserts when
RESET
IN
—
—
—
—
3
4
3
4
either V
or RESET IN falls below its
CC
threshold voltage.
Supply Voltage for the device and input for
3
3
4
4
V
CC
fixed V
reset threshold monitor.
CC
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5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
