General Description
The MAX6381–MAX6390 microprocessor (µP) supervisory
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 assert-
ed 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 incre-
ments. 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.
Features
oFactory-Set Reset Threshold Voltages Ranging
from +1.58V to +4.63V in Approximately 100mV
Increments
o±2.5% Reset Threshold Accuracy Over
Temperature (-40°C to +125°C)
oSeven Reset Timeout Periods Available: 1ms,
20ms, 140ms, 280ms, 560ms, 1120ms,
1200ms (min)
o3 Reset Output Options
Active-Low Push-Pull
Active-High Push-Pull
Active-Low Open-Drain
oReset Output State Guaranteed Valid
Down to VCC = 1V
oManual Reset Input (MAX6384/MAX6385/MAX6386)
oAuxiliary RESET IN (MAX6387/MAX6388/MAX6389)
oVCC Reset Timeout (1120ms or 1200ms)/Manual
Reset Timeout (140ms or 150ms) (MAX6390)
oNegative-Going VCC Transient Immunity
oLow Power Consumption of 6µµA at +3.6V
and 3µµA at +1.8V
oPin Compatible with
MAX809/MAX810/MAX803/MAX6326/MAX6327/
MAX6328/MAX6346/MAX6347/MAX6348,
and MAX6711/MAX6712/MAX6713
oTiny 3-Pin/4-Pin SC70 and 6-Pin µµDFN Packages
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
1
RESET
(RESET)
1
3V
CC
GND
MAX6381
MAX6382
MAX6383
TOP VIEW
2
SC70
( ) IS FOR MAX6382
123
654
GND VCC
N.C.
N.CN.C.
MAX6381
MAX6382
MAX6383
µDFN
RESET
(RESET)
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
M AX 6381X R_ _D _/V + T
-40°C to +125°C
3 SC70
MAX6382LT_ _D_+T
-40°C to +125°C
6 µDFN
MAX6382XR_ _D_+T
-40°C to +125°C
3 SC70
Pin Configurations
19-1839; Rev 5; 7/12
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.
Ordering Information
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.
Computers
Controllers
Intelligent Instruments
Critical µP and µC
Power Monitoring
Portable/Battery-
Powered Equipment
Dual Voltage Systems
Applications
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
2
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = full range, TA= -40°C to +125°C, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
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.
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range VCC 1.0 5.5 V
VCC = 5.5V, no load 7 13
VCC = 3.6V, no load 6 11
VCC = 2.5V, no load 4 7
VCC Supply Current ICC
VCC = 1.8V, no load 3 6
µA
TA = +25°CVTH -
1.5% VTH VTH +
1.5%
VCC Reset Threshold
(See Reset Thresholds table) VTH
TA = -40°C to +125°CVTH -
2.5% VTH VTH +
2.5%
V
Reset Threshold Tempco ∆VTH/°C 60 ppm/°C
VCC to Reset Delay VCC falling at 10mV/µs from VTH + 100mV
to VTH - 100mV 35 µs
D1 1 2
D2 20 40
D3 140 280
D5 280 560
D6 560 1120
D4 1120 2240
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
tRP
D7 1200 2400
ms
D4 140 280
MR timeout period D7 150 300
D4 1120 2240
Reset Timeout Period
MAX6390 tRP
VCC timeout period D7 1200 2400
ms
VIL 0.3 x
VCC
VIH
VTH < 4V 0.7 x
VCC
VIL 0.8
MR Input Voltage
VIH
VTH > 4V 2.4
V
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
3
ELECTRICAL CHARACTERISTICS (continued)
(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
MAX6381–MAX6389 32 63 100 kΩ
MR Internal Pullup Resistance MAX6390 500 1560 3000 Ω
TA = +25°C 1.245 1.27 1.295
TA = 0°C to +85°C 1.232 1.308
RESET IN Input Threshold VTHRST
TA = -40°C to +125°C 1.219 1.321
V
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
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3
Open-Drain RESET Output
Voltage VOL
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
V
Open-Drain RESET Output
Leakage Current ILKG VCC > VTH, RESET not asserted 1.0 µA
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3
VOL
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
VCC ≥ 4.5V, ISOURCE = 800µA, reset not
asserted
0.8 x
VCC
Push-Pull RESET Output Voltage
VOH VCC ≥ 2.5V, ISOURCE = 500µA, reset not
asserted
0.8 x
VCC
V
VCC ≥ 4.5V, ISOURCE = 800µA, reset asserted 0.8 x
VCC
VCC ≥ 2.5V, ISOURCE = 500µA, reset asserted 0.8 x
VCC
VCC ≥ 1.8V, ISOURCE = 150µA, reset asserted 0.8 x
VCC
VOH
VCC ≥ 1.0V, ISOURCE = 1µA, reset asserted 0.8 x
VCC
VCC ≥ 4.5V, ISINK = 3.2mA, reset not
asserted 0.4
Push-Pull RESET Output Voltage
VOL VCC ≥ 2.5V, ISINK = 1.2mA, reset not
asserted 0.3
V
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
4
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
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
25
29
27
35
33
31
37
39
41
43
-40 -10 5-25 203550658095110125
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 3550658095110125
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
063912
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
MAX6381/90 toc05
ISINK (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
ISOURCE (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
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 203550658095110125
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
5
Pin Description
PIN
3-PIN SC70 4-PIN SC70
µDFN MAX6381/
MAX6383 MAX6382
MAX6384/
MAX6386/
MAX6390
MAX6385 MAX6387/
MAX689 MAX6388
NAME FUNCTION
1
(MAX6382/
MAX6385/
MAX6388)
2 — 2 — 2 RESET
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)
2— 2—2—RESET
Acti ve- Low Op en- D r ai n/P ush- P ul l Reset
Outp ut. RE S E T chang es fr om hi g h to l ow
w hen any m oni tor ed vol tag e ( V
C C
or
V
RE S E TIN
) d r op s b el ow the r eset thr eshol d
or M R i s p ul l ed l ow . RE S E T r em ai ns l ow for
the r eset ti m eout p er i od after the m oni tor ed
vol tag es exceed the r eset thr eshol d s or M R
i s r el eased . O p en- d r ai n r eq ui r es an
exter nal p ul l up r esi stor .
2, 3, 5
(MAX6381/
MAX6382/
MAX6383)
2, 5
(MAX6384–
MAX6390)
— — — — — — N.C. No Connection. Not Internally
connected.
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
Auxi l i ar y Reset Inp ut. H i g h- i m p ed ance
i np ut to the auxi l i ar y r eset com p ar ator .
C onnect RE S E T IN to the center p oi nt of
an exter nal r esi stor vol tag e- d i vi d er
netw or k to set the r eset thr eshol d vol tag e.
Reset asser ts w hen ei ther V
C C
or RE S E T
IN fal l s b el ow i ts thr eshol d vol tag e.
4
(MAX6381
–
MAX6390)
33 4444V
CC Supply Voltage for the device and input
for fixed 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
6
Detailed Description
RESET Output
A µP reset input starts the µP in a known state. These
µP supervisory circuits assert reset to prevent code
execution 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 capabil-
ity, 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 63kΩpullup
resistor (1.56kΩfor MAX6390), so it can be left uncon-
nected 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 environ-
ment, 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-sup-
ply 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 volt-
age. 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 dura-
tion negative-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
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 neg-
ative-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 resistor
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 out-
put 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, 100kΩis ade-
quate.
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
7
MAX6387
MAX6388
MAX6389
RESET IN
( ) IS FOR MAX6388
R1
R2
RESET
(RESET)
GND
VCC
VIN
MAX6381
MAX6384
MAX6387
VCC
R1
100k
RESET
GND
Figure 1. RESET IN Configuration Figure 2. RESET Valid to VCC = Ground Circuit
PART RESET
THRESHOLD RESET TIMEOUT
46
44
31
29
26
23
22
17
MAX638_
16
D3
46
44
31
29
26
23
22
17
MAX6390
16
D4
Standard Versions
Reset Timeout Delay
SUFFIX MIN
D1 1ms
D2 20ms
D3 140ms
D5 280ms
D6 560ms
D4 1120ms
D7 1200ms
MAX6390_ _D4 1120/140ms*
MAX6390_ _D7 1200/150ms*
*
The MAX6390 has a 1120ms or 1200ms RESET timeout and a
140ms or 150ms manual reset timeout.
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
8
Selector Guide
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
*
The MAX6390 offers a VCC reset timeout of 1120ms or 1200ms (min) and a manual reset timeout of 140ms or 150ms (min).
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
*
MR is for MAX6384/MAX6385/MAX6386/MAX6390
**
RESET IN is for MAX6387/MAX6388/MAX6389
( ) are for MAX6382/MAX6385/MAX6388
PART TEMP RANGE PIN-
PACKAGE
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
MAX6390LT_ _D_+T
-40°C to +125°C
6 µDFN
MAX6390XS_ _D_+T*
-40°C to +125°C
4 SC70
Ordering Information (continued)
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.
Typical Operating Circuit
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
9
Chip Information
PROCESS: BiCMOS
Pin Configurations (continued)
( ) 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
123
654
GND VCC
N.C.
MRN.C.
MAX6384
MAX6385
MAX6386
MAX6390
µDFN
RESET
(RESET)
123
654
GND VCC
N.C.
RESET INN.C.
MAX6387
MAX6388
MAX6389
µDFN
RESET
(RESET)
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND PATTERN
NO.
3 SC70 X3+2 21-0075 90-0208
4 SC70 X4+1 21-0098 90-0187
6 µDFN L611+1 21-0147 90-0080
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications 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.
10
Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 10/00 Initial release —
3 12/05 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
