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MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
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 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 activelow reset output. The MAX6382/MAX6385/MAX6388 have
a push-pull active-high reset output, and the MAX6383/
MAX6386/MAX6389/MAX6390 have an open-drain activelow 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/BatteryPowered Equipment
Dual Voltage Systems
Pin Configurations
TOP VIEW
GND 1
RESET
(RESET) 2
MAX6381
MAX6382
MAX6383
SC70
( ) IS FOR MAX6382
3
GND
N.C.
6
5
VCC
4
MAX6381
MAX6382
MAX6383
VCC
1
RESET
(RESET)
2
3
N.C.
N.C
µDFN
Pin Configurations continued at end of data sheet.
19-1839; Rev 6; 3/18
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
Ordering Information
PART
TEMP RANGE
PINPACKAGE
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
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.
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.
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Absolute Maximum Ratings
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
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)
PARAMETER
Operating Voltage Range
VCC Supply Current
SYMBOL
VCC
ICC
CONDITIONS
MIN
Reset Threshold Tempco
VTH
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
Reset Timeout Period
MAX6390
6
11
VCC = 2.5V, no load
4
7
3
6
VTH +
1.5%
VTH +
2.5%
VCC = 3.6V, no load
VIL
MR Input Voltage
VIH
VIL
VIH
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VTH 1.5%
VTH 2.5%
TA = +25°C
TA = -40°C to +125°C
VTH
VTH
35
µs
1
2
20
40
D3
140
280
D5
280
560
D6
560
1120
D4
1120
2240
D7
1200
2400
D4
140
280
D7
150
300
D4
1120
2240
D7
1200
2400
VTH < 4V
VTH > 4V
V
ppm/°C
D2
VCC timeout period
µA
60
D1
MR timeout period
tRP
V
13
VCC falling at 10mV/µs from VTH + 100mV
to VTH - 100mV
tRP
UNITS
5.5
7
ΔVTH/°C
VCC to Reset Delay
MAX
VCC = 5.5V, no load
VCC = 1.8V, no load
VCC Reset Threshold
(See Reset Thresholds table)
TYP
1.0
ms
ms
0.3 x
VCC
0.7 x
VCC
V
0.8
2.4
Maxim Integrated │ 2
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Electrical Characteristics (continued)
(VCC = full range, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MR Minimum Input Pulse Width
MIN
MR Glitch Rejection
MAX6390
VTHRST
ns
32
63
IRESET IN
Open-Drain RESET Output
Voltage
VOL
Open-Drain RESET Output
Leakage Current
ILKG
VOL
Push-Pull RESET Output Voltage
VOH
VOH
Push-Pull RESET Output Voltage
VOL
kΩ
Ω
500
1560
3000
1.245
1.27
1.295
1.232
1.308
TA = -40°C to +125°C
1.219
1.321
VRESETIN falling at 4mV/µs from
VTHRST + 40mV to VTHRST - 40mV
RESET IN to RESET Delay
ns
100
TA = +25°C
TA = 0°C to +85°C
4.5
-50
±1
V
µs
+50
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted
0.4
VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted
0.3
VCC ≥ 1.0V, ISINK = 80µA, reset asserted
0.3
VCC > VTH, RESET not asserted
1.0
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted
0.4
VCC ≥ 1.0V, ISINK = 80µA, reset asserted
0.3
VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted
UNITS
µs
200
MAX6381–MAX6389
MR Internal Pullup Resistance
RESET IN Input Leakage Current
MAX
100
MR to Reset Delay
RESET IN Input Threshold
TYP
1
nA
V
µA
0.3
VCC ≥ 4.5V, ISOURCE = 800µA, reset not
asserted
0.8 x
VCC
VCC ≥ 2.5V, ISOURCE = 500µA, reset not
asserted
0.8 x
VCC
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
VCC ≥ 1.0V, ISOURCE = 1µA, reset asserted
0.8 x
VCC
V
V
VCC ≥ 4.5V, ISINK = 3.2mA, reset not
asserted
0.4
VCC ≥ 2.5V, ISINK = 1.2mA, reset not
asserted
0.3
Note 1: Specifications over temperature are guaranteed by design, not production tested.
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Maxim Integrated │ 3
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Typical Operating Characteristics
5
4
VCC = +2.5V
VCC = +1.8V
1
31
29
27
25
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
MAX6381/90 toc03
1.00
0.98
0.96
0.94
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
1.2
MAX6381/90 toc04
1.020
1.015
1.010
1.0
3.0
1.000
0.995
2.0
0.6
VCC = +3.0V
0.4
VCC = +4.5V
0.2
0.990
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
0
6
9
450
400
RESET ASSERTED
ABOVE THIS LINE
250
200
150
5.1
1000
RESET COMPARATOR OVERDRIVE, VTH - VCC (mV)
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750
1000
1250
1500
4.9
4.7
4.5
4.3
4.1
3.7
100
500
5.3
3.9
10
250
5.5
50
1
0
ISOURCE (µA)
100
0
0
RESET IN TO RESET DELAY
vs. TEMPERATURE
350
300
VCC = +1.8V
0.5
12
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
MAX6381/90 toc07
MAXIMUM TRANSIENT DURATION (µs)
3
ISINK (mA)
TEMPERATURE (°C)
500
1.5
1.0
0.990
0.985
VCC = +2.5V
2.5
0.8
1.005
VOL (V)
NORMALIZED RESET THRESHOLD
33
1.02
MAX6381/90 toc08
0
VCC = +1.8V
VOH (V)
2
35
1.04
MAX6381/90 toc05
3
37
1.06
MAX6381/90 toc06
VCC = +3.6V
VCC = +3V
39
1.08
NORMALIZED RESET TIMEOUT PERIOD
VCC = +5.5V
6
NORMALIZED POWER-UP RESET TIMEOUT
vs. TEMPERATURE
MAX6381/90 toc02
7
41
RESET IN DELAY (µs)
SUPPLY CURRENT (µA)
8
POWER-DOWN RESET DELAY
vs. TEMPERATURE
43
POWER-DOWN RESET DELAY (µs)
9
MAX6381/90 toc01
SUPPLY CURRENT vs. TEMPERATURE
(NO LOAD)
3.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Maxim Integrated │ 4
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Pin Description
PIN
3-PIN SC70
µDFN
MAX6384/
MAX6381/
MAX6382 MAX6386/
MAX6383
MAX6390
1
(MAX6382/
MAX6385/
MAX6388)
1
(MAX6381/
MAX6383/
MAX6384/
MAX6386/
MAX6387/
MAX6390)
2, 3, 5
(MAX6381/
MAX6382/
MAX6383)
4-PIN SC70
2
—
MAX6385
2
MAX6387/
MAX6388
MAX689
—
2
NAME
FUNCTION
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.
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
—
2
—
2
—
RESET
—
—
—
—
—
—
N.C.
No Connection. Not Internally connected.
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.
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.
2, 5
(MAX6384–
MAX6390)
3
(MAX6384/
MAX6385/
MAX6386/
MAX6390)
—
—
3
3
—
—
3
(MAX6387/
MAX6388/
MAX6389)
—
—
—
—
3
3
RESET
IN
4
(MAX6381–
MAX6390)
3
3
4
4
4
4
VCC
Supply Voltage for the device and input for
fixed VCC reset threshold monitor.
6
(MAX6381–
MAX6390)
1
1
1
1
1
1
GND
Ground
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Maxim Integrated │ 5
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Detailed Description
Reset Thresholds (-40°C to +125°C)
RESET Output
SUFFIX
VTH (min)
VTH (nom)
VTH (max)
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 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.
46
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 manualreset 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 selection, 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.
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4.51
4.63
4.74
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 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
Maxim Integrated │ 6
MAX6381–MAX6390
VIN
R1
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
VCC
VCC
MAX6387
MAX6388
MAX6389
MAX6381
MAX6384
MAX6387
RESET
(RESET)
RESET IN
R2
RESET
GND
R1
100k
GND
( ) IS FOR MAX6388
Figure 1. RESET IN Configuration
Figure 2. RESET Valid to VCC = Ground Circuit
Reset Timeout Delay
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.
SUFFIX
MIN
D1
1ms
D2
20ms
D3
140ms
D5
280ms
D6
560ms
D4
1120ms
D7
1200ms
MAX6390_ _D4
1120/140ms*
MAX6390_ _D7
1200/150ms*
Standard Versions
PART
*The MAX6390 has a 1120ms or 1200ms RESET timeout and
a 140ms or 150ms manual reset timeout.
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 transient 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
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RESET
THRESHOLD
RESET TIMEOUT
46
44
31
29
MAX638_
26
D3
23
22
17
16
46
44
31
29
MAX6390
26
D4
23
22
17
16
Maxim Integrated │ 7
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Selector Guide
PUSH-PULL
ACTIVE-LOW
X
PART NUMBER
MAX6381
MAX6382
MAX6383
MAX6384
MAX6385
MAX6386
MAX6390*
MAX6387
MAX6388
MAX6389
PUSH-PULL
ACTIVE-HIGH
X
X
X
X
X
OPEN-DRAIN
ACTIVE-LOW
MANUAL RESET
INPUT MR
X
RESET IN
X
X
X
X
X
X
X
X
X
X
*The MAX6390 offers a VCC reset timeout of 1120ms or 1200ms (min) and a manual reset timeout of 140ms or 150ms (min).
Typical Operating Circuit
Ordering Information (continued)
PART
I/O SUPPLY
VCORE
R1
VCC
RESET IN **
R1
MR *
PIN-PACKAGE
-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
CORE
I/O
VOLTAGE VOLTAGE
MAX6383XR_ _D_+T
-40°C to +125°C
3 SC70
MAX6384LT_ _D_+T
-40°C to +125°C
6 µDFN
P
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
MAX6381–MAX6390
RESET
(RESET)
TEMP RANGE
MAX6382LT_ _D_+T
RESET
INPUT
GND
GND
PUSHBUTTON SWITCH
*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.
www.maximintegrated.com
Maxim Integrated │ 8
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Pin Configurations (continued)
TOP VIEW
GND
1
GND
N.C.
6
5
4 VCC
2
( ) IS FOR MAX6385
GND
1
3 MR
RESET
(RESET)
SC70
1
4
2
N.C.
MR
µDFN
N.C.
6
5
VCC
4
MAX6387
MAX6388
MAX6389
3
1
RESET IN
RESET
(RESET)
SC70
PROCESS: BiCMOS
3
GND
VCC
2
3
N.C.
RESET IN
µDFN
( ) IS FOR MAX6388
( ) IS FOR MAX6388
Chip Information
2
( ) IS FOR MAX6385
MAX6387
MAX6388
MAX6389
RESET
(RESET)
4
MAX6384
MAX6385
MAX6386
MAX6390
MAX6384
MAX6385
MAX6386
MAX6390
RESET
(RESET)
VCC
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.
PACKAGE PACKAGE DOCUMENT
TYPE
CODE
NO.
www.maximintegrated.com
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
Maxim Integrated │ 9
MAX6381–MAX6390
SC70/μDFN, Single/Dual Low-Voltage,
Low-Power μP Reset Circuits
Revision History
REVISION
NUMBER
REVISION
DATE
0
10/00
Initial release
3
12/05
Added lead-free notation to Ordering Information.
4
4/07
Added µDFN package to data sheet.
5
6
7/12
3/18
Added automotive package to Ordering Information.
Updated Ordering Information table
DESCRIPTION
PAGES
CHANGED
—
1, 8
1, 2, 5, 7–13
1
1, 8
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.
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 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.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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