General Description
The MAX6381–MAX6390 microprocessor (μP) supervi-
sory circuits monitor power-supply voltages from +1.8V
to +5.0V while consuming only 3μA of supply current at
+1.8V. Whenever VCC falls below the factory-set reset
thresholds, the reset output asserts and remains asserted
for a minimum reset timeout period after VCC rises above
the reset threshold. Reset thresholds are available from
+1.58V to +4.63V, in approximately 100mV increments.
Seven minimum reset timeout delays ranging from 1ms
to 1200ms are available.
The MAX6381/MAX6384/MAX6387 have a push-pull active-
low reset output. The MAX6382/MAX6385/MAX6388 have
a push-pull active-high reset output, and the MAX6383/
MAX6386/MAX6389/MAX6390 have an open-drain active-
low reset output. The MAX6384/MAX6385/MAX6386 also
feature a debounced manual reset input (with internal
pullup resistor). The MAX6387/MAX6388/MAX6389 have
an auxiliary input for monitoring a second voltage. The
MAX6390 offers a manual reset input with a longer VCC
reset timeout period (1120ms or 1200ms) and a shorter
manual reset timeout (140ms or 150ms).
The MAX6381/MAX6382/MAX6383 are available in 3-pin
SC70 and 6-pin μDFN packages and the MAX6384–
MAX6390 are available in 4-pin SC70 and 6-pin μDFN
packages.
Applications
Computers
Controllers
Intelligent Instruments
Critical μP and μC
Power Monitoring
Portable/Battery-
Powered Equipment
Dual Voltage Systems
Features
Factory-Set Reset Threshold Voltages Ranging from
+1.58V to +4.63V in Approximately 100mV Increments
±2.5% Reset Threshold Accuracy Over
Temperature (-40°C to +125°C)
Seven Reset Timeout Periods Available: 1ms, 20ms,
140ms, 280ms, 560ms, 1120ms, 1200ms (min)
3 Reset Output Options
Active-Low Push-Pull
Active-High Push-Pull
Active-Low Open-Drain
Reset Output State Guaranteed Valid Down to VCC = 1V
Manual Reset Input (MAX6384/MAX6385/MAX6386)
Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)
VCC Reset Timeout (1120ms or 1200ms)/Manual
Reset Timeout (140ms or 150ms) (MAX6390)
Negative-Going VCC Transient Immunity
Low Power Consumption of 6μA at +3.6V and 3μA at +1.8V
Pin Compatible with MAX809/MAX810/MAX803/
MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348, and MAX6711/MAX6712/MAX6713
Tiny 3-Pin/4-Pin SC70 and 6-Pin μDFN Packages
AEC-Q100 Qualified, Refer to Ordering Information
for the Specific /V Trim Version
19-1839; Rev 6; 3/18
Pin Configurations continued at end of data sheet.
Ordering Information continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Selector Guide appears at end of data sheet.
Note: Insert reset threshold suffix (see Reset Threshold table)
after “XR”, “XS”, or “LT.” Insert reset timeout delay (see Reset
Timeout Delay table) after “D” to complete the part number.
Sample stock is generally held on standard versions only (see
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
PART TEMP RANGE PIN-
PACKAGE
MAX6381LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6381XR_ _D_+T -40°C to +125°C 3 SC70
MAX6381XR_ _D_/V+T -40°C to +125°C 3 SC70
MAX6381XR26D3/V+T -40°C to +125°C 3 SC70
MAX6381XR46D2/V+T -40°C to +125°C 3 SC70
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Pin Congurations
Ordering Information
RESET
(RESET)
1
3 VCC
GND
MAX6381
MAX6382
MAX6383
TOP VIEW
2
SC70
( ) IS FOR MAX6382
1 2 3
6 5 4
GND VCC
N.C.
N.CN.C.
MAX6381
MAX6382
MAX6383
µDFN
RESET
(RESET)
Click here for production status of specic part numbers.
VCC to GND .........................................................-0.3V to +6.0V
RESET Open-Drain Output ..................................-0.3V to +6.0V
RESET, RESET (push-pull output) .......... -0.3V to (VCC + 0.3V)
MR, RESET IN ......................................... -0.3V to (VCC + 0.3V)
Input Current (VCC) ............................................................20mA
Output Current (all pins) .....................................................20mA
Continuous Power Dissipation (TA = +70°C)
3-Pin SC70 (derate 2.9mW/°C above +70°C) .............235mW
4-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW
6-Pin μDFN (derate 2.1mW/°C above +70°C) .........167.7mW
Operating Temperature Range ......................... -40°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
(VCC = full range, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range VCC 1.0 5.5 V
VCC Supply Current ICC
VCC = 5.5V, no load 7 13
µA
VCC = 3.6V, no load 611
VCC = 2.5V, no load 4 7
VCC = 1.8V, no load 3 6
VCC Reset Threshold
(See Reset Thresholds table) VTH
TA = +25°C VTH -
1.5% VTH VTH +
1.5% V
TA = -40°C to +125°C VTH -
2.5% VTH VTH +
2.5%
Reset Threshold Tempco ΔVTH/°C 60 ppm/°C
VCC to Reset Delay VCC falling at 10mV/µs from VTH + 100mV
to VTH - 100mV 35 µs
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
tRP
D1 12
ms
D2 20 40
D3 140 280
D5 280 560
D6 560 1120
D4 1120 2240
D7 1200 2400
Reset Timeout Period
MAX6390 tRP
MR timeout period D4 140 280
ms
D7 150 300
VCC timeout period D4 1120 2240
D7 1200 2400
MR Input Voltage
VIL
VTH < 4V
0.3 x
VCC
VVIH 0.7 x
VCC
VIL VTH > 4V 0.8
VIH 2.4
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 2
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VCC = full range, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
Note 1: Specifications over temperature are guaranteed by design, not production tested.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MR Minimum Input Pulse Width 1 µs
MR Glitch Rejection 100 ns
MR to Reset Delay 200 ns
MR Internal Pullup Resistance MAX6381–MAX6389 32 63 100 kΩ
MAX6390 500 1560 3000
RESET IN Input Threshold VTHRST
TA = +25°C 1.245 1.27 1.295
VTA = 0°C to +85°C 1.232 1.308
TA = -40°C to +125°C 1.219 1.321
RESET IN to RESET Delay VRESETIN falling at 4mV/µs from
VTHRST + 40mV to VTHRST - 40mV 4.5 µs
RESET IN Input Leakage Current IRESET IN -50 ±1 +50 nA
Open-Drain RESET Output
Voltage VOL
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
VVCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
Open-Drain RESET Output
Leakage Current ILKG VCC > VTH, RESET not asserted 1.0 µA
Push-Pull RESET Output Voltage
VOL
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
V
VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
VOH
VCC ≥ 4.5V, ISOURCE = 800µA, reset not
asserted
0.8 x
VCC
VCC ≥ 2.5V, ISOURCE = 500µA, reset not
asserted
0.8 x
VCC
Push-Pull RESET Output Voltage
VOH
VCC ≥ 4.5V, ISOURCE = 800µA, reset
asserted
0.8 x
VCC
V
VCC ≥ 2.5V, ISOURCE = 500µA, reset
asserted
0.8 x
VCC
VCC ≥ 1.8V, ISOURCE = 150µA, reset
asserted
0.8 x
VCC
VCC ≥ 1.0V, ISOURCE = 1µA, reset asserted 0.8 x
VCC
VOL
VCC ≥ 4.5V, ISINK = 3.2mA, reset not
asserted 0.4
VCC ≥ 2.5V, ISINK = 1.2mA, reset not
asserted 0.3
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 3
Electrical Characteristics (continued)
25
29
27
35
33
31
37
39
41
43
-40 -10 5-25 20 35 50 65 80 95 110 125
POWER-DOWN RESET DELAY
vs. TEMPERATURE
MAX6381/90 toc02
TEMPERATURE (°C)
POWER-DOWN RESET DELAY (µs)
VCC = +1.8V
VCC = +3V
0.94
0.98
0.96
1.02
1.00
1.06
1.04
1.08
-40 -10 5 20-25 35 50 65 80 95 110 125
NORMALIZED POWER-UP RESET TIMEOUT
vs. TEMPERATURE
MAX6381/90 toc03
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
0.990
0.985
1.015
0.995
0.990
1.000
1.005
1.010
1.020
-40 -10 5 20-25 35 50 9580 11065 125
MAX6381/90 toc04
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
0
0.4
0.2
0.8
0.6
1.0
1.2
0 63 9 12
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
MAX6381/90 toc05
I
SINK
(mA)
VOL (V)
VCC = +3.0V
VCC = +4.5V
0
1.0
0.5
2.0
1.5
2.5
3.0
0 500 750250 1000 1250 1500
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
MAX6381/90 toc06
I
SOURCE
(µA)
VOH (V)
VCC = +2.5V
VCC = +1.8V
450
0
1 100010010
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
150
50
350
250
500
200
100
400
300
MAX6381/90 toc07
RESET COMPARATOR OVERDRIVE, VTH - VCC (mV)
MAXIMUM TRANSIENT DURATION (µs)
RESET ASSERTED
ABOVE THIS LINE
0
2
1
5
4
3
6
7
8
9
-40 -10 5-25 20 35 50 65 80 95 110 125
SUPPLY CURRENT vs. TEMPERATURE
(NO LOAD)
MAX6381/90 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
VCC = +1.8V
VCC = +2.5V
VCC = +3.6V
VCC = +5.5V
3.5
3.9
3.7
4.5
4.3
4.1
4.7
4.9
5.3
5.1
5.5
-40 -10 5-25 20 35 50 65 80 95 110 125
RESET IN TO RESET DELAY
vs. TEMPERATURE
MAX6381/90 toc08
TEMPERATURE (°C)
RESET IN DELAY (µs)
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 4
Typical Operating Characteristics
PIN
NAME FUNCTION
µDFN
3-PIN SC70 4-PIN SC70
MAX6381/
MAX6383 MAX6382
MAX6384/
MAX6386/
MAX6390
MAX6385 MAX6387/
MAX689 MAX6388
1
(MAX6382/
MAX6385/
MAX6388)
222RESET
Active-High Push-Pull Reset Output. RESET
changes from low to high when any monitored
voltage (VCC or VRESETIN) drops 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.
1
(MAX6381/
MAX6383/
MAX6384/
MAX6386/
MAX6387/
MAX6390)
222RESET
Active-Low Open-Drain/Push-Pull Reset Output.
RESET changes from high to low when any
monitored voltage (VCC or VRESETIN) drops
below the reset threshold or MR is pulled low.
RESET remains low for the reset timeout
period after the monitored voltages exceed the
reset thresholds or MR is released. Open-drain
requires an external pullup resistor.
2, 3, 5
(MAX6381/
MAX6382/
MAX6383) N.C. No Connection. Not Internally connected.
2, 5
(MAX6384–
MAX6390)
3
(MAX6384/
MAX6385/
MAX6386/
MAX6390)
3 3 MR
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 connect
to VCC if unused. MR has an internal 63kΩ
(1.56kΩ for MAX6390) pullup resistor to VCC.
3
(MAX6387/
MAX6388/
MAX6389)
3 3 RESET
IN
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 either VCC or
RESET IN falls below its threshold voltage.
4
(MAX6381–
MAX6390)
3 3 4 4 4 4 VCC Supply Voltage for the device and input for
xed VCC reset threshold monitor.
6
(MAX6381–
MAX6390)
1 1 1 1 1 1 GND Ground
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 5
Pin Description
Detailed Description
RESET Output
A μP reset input starts the μP in a known state. These μP
supervisory circuits assert reset to prevent code execu-
tion errors during power-up, power-down, or brownout
conditions.
Reset asserts when VCC is below the reset threshold;
once VCC exceeds the reset threshold, an internal timer
keeps the reset output asserted for the reset timeout
period. After this interval, reset output deasserts. Reset
output is guaranteed to be in the correct logic state for
VCC ≥ 1V.
Manual Reset Input (MAX6384/
MAX6385/MAX6386/MAX6390)
Many μP-based products require manual reset capability,
allowing the operator, a test technician, or external logic
circuitry to initiate a reset. A logic low on MR asserts reset.
Reset remains asserted while MR is low, and for the reset
active timeout period (tRP) after MR returns high. This
input has an internal 63kΩ pullup resistor (1.56kΩ for
MAX6390), so it can be left unconnected if it is not used.
MR can be driven with TTL or CMOS logic levels, or with
open-drain/collector outputs. Connect a normally open
momentary switch from MR to GND to create a manual-
reset function; external debounce circuitry is not required.
If MR is driven from long cables or if the device is used in
a noisy environment, connecting a 0.1μF capacitor from
MR to GND provides additional noise immunity.
RESET IN Comparator
(MAX6387/MAX6388/MAX6389)
RESET IN is compared to an internal +1.27V reference. If
the voltage at RESET IN is less than 1.27V, reset asserts.
Use the RESET IN comparator as a user-adjustable
reset detector or as a secondary power-supply monitor
by implementing a resistor-divider at RESET IN (shown
in Figure 1). Reset asserts when either VCC or RESET
IN falls below its respective threshold voltage. Use the
following equation to set the threshold:
VINTH = VTHRST (R1/R2 + 1)
where VTHRST = +1.27V. To simplify the resistor selec-
tion, choose a value of R2 and calculate R1:
R1 = R2 [(VINTH/VTHRST) - 1]
Since the input current at RESET IN is 50nA (max), large
values can be used for R2 with no significant loss in
accuracy.
Applications Information
Negative-Going VCC Transients
In addition to issuing a reset to the μP during power-up,
power-down, and brownout conditions, the MAX6381–
MAX6390 are relatively immune to short duration nega-
tive-going VCC transients (glitches).
The Typical Operating Characteristics section shows the
Maximum Transient Durations vs. Reset Comparator
Overdrive, for which the MAX6381–MAX6390 do not
generate a reset pulse. This graph was generated using
Reset Thresholds (-40°C to +125°C)
SUFFIX VTH (min) VTH (nom) VTH (max)
46 4.51 4.63 4.74
45 4.39 4.50 4.61
44 4.27 4.38 4.48
43 4.19 4.30 4.41
42 4.10 4.20 4.31
41 4.00 4.10 4.20
40 3.90 4.00 4.10
39 3.80 3.90 4.00
38 3.71 3.80 3.90
37 3.61 3.70 3.79
36 3.51 3.60 3.69
35 3.41 3.50 3.59
34 3.32 3.40 3.49
33 3.22 3.30 3.38
32 3.12 3.20 3.28
31 3.00 3.08 3.15
30 2.93 3.00 3.08
29 2.85 2.93 3.00
28 2.73 2.80 2.87
27 2.63 2.70 2.77
26 2.56 2.63 2.69
25 2.44 2.50 2.56
24 2.34 2.40 2.46
23 2.26 2.31 2.37
22 2.13 2.19 2.24
21 2.05 2.10 2.15
20 1.95 2.00 2.05
19 1.85 1.90 1.95
18 1.76 1.80 1.85
17 1.62 1.67 1.71
16 1.54 1.58 1.61
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 6
a negative-going pulse applied to VCC, starting above
the actual reset threshold and ending below it by the
magnitude indicated (reset comparator overdrive). The
graph indicates the typical maximum pulse width a
negative-going VCC transient may have without causing
a reset pulse to be issued. As the magnitude of the tran-
sient increases (goes farther below the reset threshold),
the maximum allowable pulse width decreases. A 0.1μF
capacitor mounted as close as possible to VCC provides
additional transient immunity.
Ensuring a Valid RESET
Output Down to VCC = 0V
The MAX6381–MAX6390 are guaranteed to operate
properly down to VCC = 1V. In applications that require
valid reset levels down to VCC = 0V, a pulldown resis-
tor to active-low outputs (push/pull only, Figure 2) and a
pullup resistor to active-high outputs (push/pull only) will
ensure that the reset line is valid while the reset output
can no longer sink or source current. This scheme does
not work with the open-drain outputs of the MAX6383/
MAX6386/MAX6389/MAX6390. The resistor value used
is not critical, but it must be small enough not to load the
reset output when VCC is above the reset threshold. For
most applications, 100kΩ is adequate.
Figure 1. RESET IN Configuration Figure 2. RESET Valid to VCC = Ground Circuit
*The MAX6390 has a 1120ms or 1200ms RESET timeout and
a 140ms or 150ms manual reset timeout.
Reset Timeout Delay
Standard Versions
SUFFIX MIN
D1 1ms
D2 20ms
D3 140ms
D5 280ms
D6 560ms
D4 1120ms
D7 1200ms
MAX6390_ _D4 1120/140ms*
MAX6390_ _D7 1200/150ms* PART RESET
THRESHOLD RESET TIMEOUT
MAX638_
46
D3
44
31
29
26
23
22
17
16
MAX6390
46
D4
44
31
29
26
23
22
17
16
MAX6387
MAX6388
MAX6389
RESET IN
( ) IS FOR MAX6388
R1
R2
RESET
(RESET)
GND
VCC
VIN MAX6381
MAX6384
MAX6387
VCC
R1
100k
RESET
GND
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 7
*The MAX6390 offers a VCC reset timeout of 1120ms or 1200ms (min) and a manual reset timeout of 140ms or 150ms (min).
*MR is for MAX6384/MAX6385/MAX6386/MAX6390
**RESET IN is for MAX6387/MAX6388/MAX6389
( ) are for MAX6382/MAX6385/MAX6388
Note: Insert reset threshold suffix (see Reset Threshold table)
after “XR”, “XS”, or “LT.” Insert reset timeout delay (see Reset
Timeout Delay table) after “D” to complete the part number.
Sample stock is generally held on standard versions only (see
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
*MAX6390 is available with D4 or D7 timing only.
+Denotes a lead(Pb)-free/RoHS-compliant package.
PART NUMBER PUSH-PULL
ACTIVE-LOW
PUSH-PULL
ACTIVE-HIGH
OPEN-DRAIN
ACTIVE-LOW
MANUAL RESET
INPUT MR RESET IN
MAX6381 X
MAX6382 X
MAX6383 X
MAX6384 X X
MAX6385 X X
MAX6386 X X
MAX6390* X X
MAX6387 X X
MAX6388 X X
MAX6389 X X
PART TEMP RANGE PIN-PACKAGE
MAX6382LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6382XR_ _D_+T -40°C to +125°C 3 SC70
MAX6383LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6383XR_ _D_+T -40°C to +125°C 3 SC70
MAX6384LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6384XS_ _D_+T -40°C to +125°C 4 SC70
MAX6385LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6385XS_ _D_+T -40°C to +125°C 4 SC70
MAX6386LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6386XS_ _D_+T -40°C to +125°C 4 SC70
MAX6387LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6387XS_ _D_+T -40°C to +125°C 4 SC70
MAX6388LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6388XS_ _D_+T -40°C to +125°C 4 SC70
MAX6389LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6389XS_ _D_+T -40°C to +125°C 4 SC70
MAX6389XS30D2/V+T -40°C to +125°C 4 SC70
MAX6389XS31D1/V+T -40°C to +125°C 4 SC70
MAX6389XS32D1/V+T -40°C to +125°C 4 SC70
MAX6390LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6390XS_ _D_+T* -40°C to +125°C 4 SC70
VCC
P
MR *
PUSHBUTTON SWITCH
RESET
(RESET)
RESET
INPUT
GND
GND
RESET IN **
VCORE
R1
I/O
VOLTAGE
I/O SUPPLY
CORE
VOLTAGE
R1
MAX6381–MAX6390
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 8
Selector Guide
Typical Operating Circuit Ordering Information (continued)
PACKAGE
TYPE
PACKAGE
CODE
DOCUMENT
NO.
LAND PATTERN
NO.
3 SC70 X3+2 21-0075 90-0208
4 SC70 X4+1 21-0098 90-0187
6 FDFN L611+1 21-0147 90-0080
( ) IS FOR MAX6388
SC70
TOP VIEW
1
2
4
3
VCC
RESET
(RESET)
GND
MAX6387
MAX6388
MAX6389
1
2
4
3
VCC
MR
RESET
(RESET)
GND
MAX6384
MAX6385
MAX6386
MAX6390
( ) IS FOR MAX6385 ( ) IS FOR MAX6385
( ) IS FOR MAX6388
SC70
RESET IN
1 2 3
6 5 4
GND VCC
N.C.
MRN.C.
MAX6384
MAX6385
MAX6386
MAX6390
µDFN
RESET
(RESET)
1 2 3
6 5 4
GND VCC
N.C.
RESET INN.C.
MAX6387
MAX6388
MAX6389
µDFN
RESET
(RESET)
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
www.maximintegrated.com Maxim Integrated 9
Pin Congurations (continued)
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
Chip Information
PROCESS: BiCMOS
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 10/00 Initial release
312/05 Added lead-free notation to Ordering Information. 1, 8
4 4/07 Added µDFN package to data sheet. 1, 2, 5, 7–13
5 7/12 Added automotive package to Ordering Information.1
6 3/18 Updated Ordering Information table 1, 8
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX6381–MAX6390 SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
© 2018 Maxim Integrated Products, Inc.
10
Revision History
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.