19-1839; Rev 5; 7/12
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
General Description Features MAX6381–MAX6390
The MAX6381–MAX6390 microprocessor (µP) supervisory o Factory-Set Reset Threshold Voltages Ranging
circuits monitor power-supply voltages from +1.8V to from +1.58V to +4.63V in Approximately 100mV
+5.0V while consuming only 3µA of supply current at Increments
+1.8V. Whenever VCC falls below the factory-set reset o ±2.5% Reset Threshold Accuracy Over
thresholds, the reset output asserts and remains assert- Temperature (-40°C to +125°C)
ed for a minimum reset timeout period after VCC rises o Seven Reset Timeout Periods Available: 1ms,
above the reset threshold. Reset thresholds are available 20ms, 140ms, 280ms, 560ms, 1120ms,
from +1.58V to +4.63V, in approximately 100mV incre- 1200ms (min)
ments. Seven minimum reset timeout delays ranging o 3 Reset Output Options
from 1ms to 1200ms are available. Active-Low Push-Pull
The MAX6381/MAX6384/MAX6387 have a push-pull Active-High Push-Pull
active-low reset output. The MAX6382/MAX6385/ Active-Low Open-Drain
MAX6388 have a push-pull active-high reset output, o Reset Output State Guaranteed Valid
and the MAX6383/MAX6386/MAX6389/MAX6390 Down to VCC = 1V
have an open-drain active-low reset output. The
MAX6384/MAX6385/MAX6386 also feature a o Manual Reset Input (MAX6384/MAX6385/MAX6386)
debounced manual reset input (with internal pullup o Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)
resistor). The MAX6387/MAX6388/MAX6389 have an o VCC Reset Timeout (1120ms or 1200ms)/Manual
auxiliary input for monitoring a second voltage. The Reset Timeout (140ms or 150ms) (MAX6390)
MAX6390 offers a manual reset input with a longer VCC o Negative-Going VCC Transient Immunity
reset timeout period (1120ms or 1200ms) and a shorter
manual reset timeout (140ms or 150ms). o Low Power Consumption of 6µA at +3.6V
The MAX6381/MAX6382/MAX6383 are available in and 3µA at +1.8V
3-pin SC70 and 6-pin µDFN packages and the o Pin Compatible with
MAX6384–MAX6390 are available in 4-pin SC70 and MAX809/MAX810/MAX803/MAX6326/MAX6327/
6-pin µDFN packages. MAX6328/MAX6346/MAX6347/MAX6348,
Applications and MAX6711/MAX6712/MAX6713
Computers Critical µP and µC o Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages
Controllers Power Monitoring Ordering Information
Intelligent Instruments Portable/Battery- PIN-
Powered Equipment PART TEMP RANGE PACKAGE
Dual Voltage Systems MAX6381LT_ _D_+T -40°C to +125°C 6 µDFN
Pin Configurations MAX6381XR_ _D_+T -40°C to +125°C 3 SC70
MAX6381XR_ _D_/V+T -40°C to +125°C 3 SC70
TOP VIEW GND N.C. VCC MAX6382LT_ _D_+T -40°C to +125°C 6 µDFN
MAX6382XR_ _D_+T -40°C to +125°C 3 SC70
6 5 4 Note: Insert reset threshold suffix (see Reset Threshold table)
GND 1 after "XR", "XS", or "LT." Insert reset timeout delay (see Reset
MAX6381 MAX6381 Timeout Delay table) after "D" to complete the part number.
MAX6382 3 VCC MAX6382 Sample stock is generally held on standard versions only (see
MAX6383 MAX6383 Standard Versions table). Standard versions have an order
RESET 2 increment requirement of 2500 pieces. Nonstandard versions
(RESET) have an order increment requirement of 10,000 pieces.
SC70 1 2 3 Contact factory for availability of nonstandard versions.
RESET +Denotes a lead(Pb)-free/RoHS-compliant package.
N.C. N.C /V denotes an automotive qualified part.
( ) IS FOR MAX6382 (RESET) µDFN Ordering Information continued at end of data sheet.
Pin Configurations continued at end of data sheet. Typical Operating Circuit appears at end of data sheet.
Selector Guide appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct 1
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
MAX6381–MAX6390 ABSOLUTE MAXIMUM RATINGS
VCC to GND ..........................................................-0.3V to +6.0V Continuous Power Dissipation (TA = +70°C)
RESET Open-Drain Output....................................-0.3V to +6.0V
3-Pin SC70 (derate 2.9mW/°C above +70°C) ..............235mW
RESET, RESET (push-pull output) ..............-0.3V to (VCC + 0.3V) 4-Pin SC70 (derate 3.1mW/°C above +70°C) ..............245mW
MR, RESET IN.............................................-0.3V to (VCC + 0.3V) 6-Pin µDFN (derate 2.1mW/°C above +70°C) ..........167.7mW
Input Current (VCC) .............................................................20mA Operating Temperature Range .........................-40°C to +125°C
Output Current (all pins) .....................................................20mA 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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range VCC 1.0 5.5 V
VCC = 5.5V, no load 7 13
VCC Supply Current ICC VCC = 3.6V, no load 6 11 µA
VCC = 2.5V, no load 4 7
VCC = 1.8V, no load 3 6
TA = +25°C VTH - VTH VTH +
VCC Reset Threshold 1.5% 1.5%
(See Reset Thresholds table) VTH V
TA = -40°C to +125°C VTH - VTH VTH +
2.5% 2.5%
Reset Threshold Tempco ∆VTH/°C 60 ppm/°C
VCC to Reset Delay VCC falling at 10mV/µs from VTH + 100mV 35 µs
to VTH - 100mV
D1 1 2
D2 20 40
Reset Timeout Period D3 140 280
MAX6381–MAX6389 tRP D5 280 560 ms
(See Reset Timeout table) D6 560 1120
D4 1120 2240
D7 1200 2400
MR timeout period D4 140 280
Reset Timeout Period tRP D7 150 300 ms
MAX6390 D4 1120 2240
VCC timeout period D7 1200 2400
VIL 0.3 x
VTH < 4V VCC
MR Input Voltage VIH 0.7 x V
VCC
VIL VTH > 4V 0.8
VIH 2.4
2
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
ELECTRICAL CHARACTERISTICS (continued) MAX6381–MAX6390
(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
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 Ω
TA = +25°C 1.245 1.27 1.295
RESET IN Input Threshold VTHRST TA = 0°C to +85°C 1.232 1.308 V
TA = -40°C to +125°C 1.219 1.321
RESET IN to RESET Delay VRESETIN falling at 4mV/µs from 4.5 µs
VTHRST + 40mV to VTHRST - 40mV
RESET IN Input Leakage Current IRESET IN -50 ±1 +50 nA
Open-Drain RESET Output VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
Voltage VOL VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3 V
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
Open-Drain RESET Output ILKG VCC > VTH, RESET not asserted 1.0 µA
Leakage Current
VCC ≥ 4.5V, ISINK = 3.2mA, reset asserted 0.4
VOL VCC ≥ 2.5V, ISINK = 1.2mA, reset asserted 0.3
VCC ≥ 1.0V, ISINK = 80µA, reset asserted 0.3
Push-Pull RESET Output Voltage VCC ≥ 4.5V, ISOURCE = 800µA, reset not 0.8 x V
asserted VCC
VOH VCC ≥ 2.5V, ISOURCE = 500µA, reset not 0.8 x
asserted VCC
VCC ≥ 4.5V, ISOURCE = 800µA, reset asserted 0.8 x
VCC
VCC ≥ 2.5V, ISOURCE = 500µA, reset asserted 0.8 x
VOH VCC
VCC ≥ 1.8V, ISOURCE = 150µA, reset asserted 0.8 x
Push-Pull RESET Output Voltage VCC V
VCC ≥ 1.0V, ISOURCE = 1µA, reset asserted 0.8 x
VCC
VCC ≥ 4.5V, ISINK = 3.2mA, reset not 0.4
asserted
VOL VCC ≥ 2.5V, ISINK = 1.2mA, reset not
asserted 0.3
Note 1: Specifications over temperature are guaranteed by design, not production tested.
3
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
MAX6381–MAX6390 Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE POWER-DOWN RESET DELAY NORMALIZED POWER-UP RESET TIMEOUT
(NO LOAD) vs. TEMPERATURE vs. TEMPERATURE
9 MAX6381/90 toc01 43 MAX6381/90 toc02 1.08 MAX6381/90 toc03
8 41 VCC = +3V NORMALIZED RESET TIMEOUT PERIOD 1.06
7 POWER-DOWN RESET DELAY (µs) 39
SUPPLY CURRENT (µA) 6 VCC = +5.5V VCC = +3.6V 37 1.04
5 35 1.02
4 33 VCC = +1.8V 1.00
3 VCC = +2.5V 31 0.98
2 VCC = +1.8V 29
1 27 0.96
0 25 0.94
-40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD OUTPUT-VOLTAGE LOW OUTPUT-VOLTAGE HIGH
vs. TEMPERATURE vs. SINK CURRENT vs. SOURCE CURRENT
1.020 toc04 1.2 toc05 3.0 toc06
1.015 MAX6381/90 MAX6381/90 VCC = +2.5V MAX6381/90
THRESHOLD 1.0 2.5
1.010
1.005 0.8 2.0
NORMALIZED RESET 1.000 VOL (V) 0.6 VOH (V) 1.5
0.995 VCC = +3.0V
0.4 1.0 VCC = +1.8V
0.990
0.2 VCC = +4.5V 0.5
0.985
0.990 0 0
-40 -25 -10 5 20 35 50 65 80 95 110 125 0 3 6 9 12 0 250 500 750 1000 1250 1500
TEMPERATURE (°C) ISINK (mA) ISOURCE (µA)
MAXIMUM TRANSIENT DURATION RESET IN TO RESET DELAY
vs. RESET COMPARATOR OVERDRIVE vs. TEMPERATURE
500 toc07 5.5 toc08
MAXIMUM TRANSIENT DURATION (µs) 450 MAX6381/90 5.3 MAX6381/90
400 5.1
350 RESET IN DELAY (µs) 4.9
300 RESET ASSERTED 4.7
250 ABOVE THIS LINE 4.5
200 4.3
150 4.1
100 3.9
50 3.7
0 3.5
1 10 100 1000 -40 -25 -10 5 20 35 50 65 80 95 110 125
RESET COMPARATOR OVERDRIVE, VTH - VCC (mV) TEMPERATURE (°C)
4
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Pin Description MAX6381–MAX6390
PIN
3-PIN SC70 4-PIN SC70
µDFN MAX6384/ NAME FUNCTION
MAX6381/ MAX6382 MAX6386/ MAX6385 MAX6387/ MAX6388
MAX6383 MAX6390 MAX689
Active-High Push-Pull Reset Output.
RESET changes from low to high when
1 any monitored voltage (VCC or
(MAX6382/ 2 — 2 — 2 RESET VRESETIN) drops below the reset
MAX6385/ threshold or MR is pulled low. RESET
MAX6388) 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
1 Output. RESET changes from high to low
(MAX6381/ when any monitored voltage (VCC or
MAX6383/ VRESETIN) drops below the reset threshold
MAX6384/ 2 — 2 — 2 — RESET or MR is pulled low. RESET remains low for
MAX6386/ the reset timeout period after the monitored
MAX6387/ voltages exceed the reset thresholds or MR
MAX6390) is released. Open-drain requires an
external pullup resistor.
2, 3, 5
(MAX6381/
MAX6382/ No Connection. Not Internally
MAX6383) — — — — — — N.C. connected.
2, 5
(MAX6384–
MAX6390)
Active-Low Manual Reset Input. Drive
3 low to force a reset. Reset remains
(MAX6384/ active as long as MR is low and for the
MAX6385/ — — 3 3 — — MR reset timeout period after MR is
MAX6386/ released. Leave unconnected or
MAX6390) connect to VCC if unused. MR has an
internal 63kΩ (1.56kΩ for MAX6390)
pullup resistor to VCC.
Auxiliary Reset Input. High-impedance
3 input to the auxiliary reset comparator.
(MAX6387/ RESET Connect RESET IN to the center point of
MAX6388/ — — — — 3 3 IN an external resistor voltage-divider
MAX6389) network to set the reset threshold voltage.
Reset asserts when either VCC or RESET
IN falls below its threshold voltage.
4 Supply Voltage for the device and input
(MAX6381– 3 3 4 4 4 4 VCC for fixed VCC reset threshold monitor.
MAX6390)
6
(MAX6381– 1 1 1 1 1 1 GND Ground
MAX6390)
5
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
MAX6381–MAX6390 Detailed Description Reset Thresholds (-40°C to +125°C)
RESET Output SUFFIX VTH (min) VTH (nom) VTH (max)
A µP reset input starts the µP in a known state. These 46 4.51 4.63 4.74
µP supervisory circuits assert reset to prevent code 45 4.39 4.50 4.61
execution errors during power-up, power-down, or 44 4.27 4.38 4.48
brownout conditions.
Reset asserts when VCC is below the reset threshold; 43 4.19 4.30 4.41
once VCC exceeds the reset threshold, an internal timer 42 4.10 4.20 4.31
keeps the reset output asserted for the reset timeout 41 4.00 4.10 4.20
period. After this interval, reset output deasserts. Reset 40 3.90 4.00 4.10
output is guaranteed to be in the correct logic state for 39 3.80 3.90 4.00
VCC ≥ 1V.
38 3.71 3.80 3.90
Manual Reset Input (MAX6384/ 37 3.61 3.70 3.79
MAX6385/MAX6386/MAX6390) 36 3.51 3.60 3.69
Many µP-based products require manual reset capabil-
ity, allowing the operator, a test technician, or external 35 3.41 3.50 3.59
logic circuitry to initiate a reset. A logic low on MR 34 3.32 3.40 3.49
asserts reset. Reset remains asserted while MR is low, 33 3.22 3.30 3.38
and for the reset active timeout period (tRP) after MR 32 3.12 3.20 3.28
returns high. This input has an internal 63kΩ pullup 31 3.00 3.08 3.15
resistor (1.56kΩ for MAX6390), so it can be left uncon-
nected if it is not used. MR can be driven with TTL or
30 2.93 3.00 3.08
CMOS logic levels, or with open-drain/collector outputs. 29 2.85 2.93 3.00
Connect a normally open momentary switch from MR to 28 2.73 2.80 2.87
GND to create a manual-reset function; external 27 2.63 2.70 2.77
debounce circuitry is not required. If MR is driven from
long cables or if the device is used in a noisy environ- 26 2.56 2.63 2.69
ment, connecting a 0.1µF capacitor from MR to GND 25 2.44 2.50 2.56
provides additional noise immunity. 24 2.34 2.40 2.46
RESET IN Comparator 23 2.26 2.31 2.37
(MAX6387/MAX6388/MAX6389) 22 2.13 2.19 2.24
RESET IN is compared to an internal +1.27V reference. 21 2.05 2.10 2.15
If the voltage at RESET IN is less than 1.27V, reset 20 1.95 2.00 2.05
asserts. Use the RESET IN comparator as a user-
adjustable reset detector or as a secondary power-sup- 19 1.85 1.90 1.95
ply monitor by implementing a resistor-divider at RESET 18 1.76 1.80 1.85
IN (shown in Figure 1). Reset asserts when either VCC 17 1.62 1.67 1.71
or RESET IN falls below its respective threshold volt- 16 1.54 1.58 1.61
age. Use the following equation to set the threshold:
VINTH = VTHRST (R1/R2 + 1) ___________Applications Information
where VTHRST = +1.27V. To simplify the resistor selec- Negative-Going VCC Transients
tion, choose a value of R2 and calculate R1: In addition to issuing a reset to the µP during power-up,
R1 = R2 [(VINTH/VTHRST) - 1] power-down, and brownout conditions, the
MAX6381–MAX6390 are relatively immune to short dura-
Since the input current at RESET IN is 50nA (max), tion negative-going VCC transients (glitches).
large values can be used for R2 with no significant loss The Typical Operating Characteristics section shows the
in accuracy. Maximum Transient Durations vs. Reset Comparator
Overdrive, for which the MAX6381–MAX6390 do not
generate a reset pulse. This graph was generated using
6
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
VCC VCC MAX6381–MAX6390
VIN
MAX6387 MAX6381
MAX6388 MAX6384
R1 MAX6389 MAX6387
RESET IN RESET RESET
R2 (RESET)
R1
GND GND 100k
( ) IS FOR MAX6388
Figure 1. RESET IN Configuration Figure 2. RESET Valid to VCC = Ground Circuit
Reset Timeout Delay
SUFFIX MIN does not work with the open-drain outputs of the
MAX6383/MAX6386/MAX6389/MAX6390. The resistor
D1 1ms value used is not critical, but it must be small enough
D2 20ms not to load the reset output when VCC is above the
D3 140ms reset threshold. For most applications, 100kΩ is ade-
D5 280ms quate.
D6 560ms
D4 1120ms
D7 1200ms Standard Versions
MAX6390_ _D4 1120/140ms*
MAX6390_ _D7 1200/150ms* PART RESET RESET TIMEOUT
*The MAX6390 has a 1120ms or 1200ms RESET timeout and a THRESHOLD
140ms or 150ms manual reset timeout. 46
a negative-going pulse applied to VCC, starting above 44
the actual reset threshold and ending below it by the 31
magnitude indicated (reset comparator overdrive). The 29
graph indicates the typical maximum pulse width a neg- MAX638_ 26 D3
ative-going VCC transient may have without causing a 23
reset pulse to be issued. As the magnitude of the tran-
sient increases (goes farther below the reset threshold), 22
the maximum allowable pulse width decreases. A 0.1µF 17
capacitor mounted as close as possible to VCC provides 16
additional transient immunity. 46
Ensuring a Valid RESET 44
Output Down to VCC = 0V 31
The MAX6381–MAX6390 are guaranteed to operate 29
properly down to VCC = 1V. In applications that require MAX6390 26 D4
valid reset levels down to VCC = 0V, a pulldown resistor
to active-low outputs (push/pull only, Figure 2) and a 23
pullup resistor to active-high outputs (push/pull only) 22
will ensure that the reset line is valid while the reset out- 17
put can no longer sink or source current. This scheme 16
7
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
MAX6381–MAX6390 Selector Guide
PART NUMBER PUSH-PULL PUSH-PULL OPEN-DRAIN MANUAL RESET RESET IN
ACTIVE-LOW ACTIVE-HIGH ACTIVE-LOW INPUT MR
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).
Typical Operating Circuit Ordering Information (continued)
I/O SUPPLY PART TEMP RANGE PIN-
VCORE PACKAGE
MAX6383LT_ _D_+T -40°C to +125°C 6 µDFN
R1 VCC MAX6383XR_ _D_+T -40°C to +125°C 3 SC70
RESET IN ** CORE I/O MAX6384LT_ _D_+T -40°C to +125°C 6 µDFN
R1 VOLTAGE VOLTAGE MAX6384XS_ _D_+T -40°C to +125°C 4 SC70
MAX6381–MAX6390 P MAX6385LT_ _D_+T -40°C to +125°C 6 µDFN
MR * RESET RESET MAX6385XS_ _D_+T -40°C to +125°C 4 SC70
(RESET) INPUT MAX6386LT_ _D_+T -40°C to +125°C 6 µDFN
GND
GND MAX6386XS_ _D_+T -40°C to +125°C 4 SC70
PUSHBUTTON SWITCH 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
*MR is for MAX6384/MAX6385/MAX6386/MAX6390 MAX6388XS_ _D_+T -40°C to +125°C 4 SC70
**RESET IN is for MAX6387/MAX6388/MAX6389 MAX6389LT_ _D_+T -40°C to +125°C 6 µDFN
( ) are for MAX6382/MAX6385/MAX6388 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
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.
8
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Pin Configurations (continued) MAX6381–MAX6390
TOP VIEW GND N.C. VCC
6 5 4
GND 1 4 VCC
MAX6384
MAX6384 MAX6385
MAX6385 MAX6386
MAX6386 MAX6390
MAX6390
RESET 2 1 2 3
(RESET) 3 MR
RESET N.C. MR
(RESET) µDFN
SC70
( ) IS FOR MAX6385 ( ) IS FOR MAX6385
GND N.C. VCC
GND 1 4 VCC 6 5 4
MAX6387 MAX6387
MAX6388 MAX6388
MAX6389 MAX6389
RESET 2 1 2 3
(RESET) 3 RESET IN
RESET N.C. RESET IN
(RESET) µDFN
SC70
( ) IS FOR MAX6388 ( ) IS FOR MAX6388
Chip Information Package Information
PROCESS: BiCMOS 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 PACKAGE OUTLINE LAND PATTERN
TYPE CODE NO. 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
9
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
MAX6381–MAX6390 Revision History
REVISION REVISION DESCRIPTION PAGES
NUMBER DATE 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
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.
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MAX6383XR42D7+T MAX6386XS21D3+T MAX6387LT17D3+T MAX6383LT46D2+T MAX6384LT30D5+T
MAX6383LT27D6+T MAX6384XS43D7+T MAX6385LT32D2+T MAX6382XR26D7+T MAX6388XS44D6+T
MAX6387LT16D3+T MAX6384XS33D7+T MAX6382XR37D7+T MAX6382LT28D7+T MAX6385LT35D1+T
MAX6386XS27D5+T MAX6386XS29D6+T MAX6387XS34D5+T MAX6388LT36D1+T MAX6386LT37D2+T
MAX6389LT32D3+T MAX6383XR16D5+T MAX6387LT36D3+T MAX6383LT16D4+T MAX6386LT40D1+T
MAX6381LT22D1+T MAX6381LT31D1+T MAX6381LT17D1+T MAX6389LT24D5+T MAX6381LT27D1+T
MAX6387LT45D1+T MAX6382XR29D7+T MAX6381LT25D4+T MAX6382XR28D6+T MAX6387XS26D4+T
MAX6383XR16D1+T MAX6381LT16D1+T MAX6381LT16D2+T MAX6381LT16D3+T MAX6381LT16D4+T
MAX6381LT16D5+T MAX6381LT16D6+T MAX6381LT16D7+T MAX6381LT17D2+T MAX6381LT17D3+T
MAX6381LT17D4+T MAX6381LT17D5+T MAX6381LT17D6+T MAX6381LT17D7+T MAX6381LT18D1+T
MAX6381LT18D2+T MAX6381LT18D3+T MAX6381LT18D4+T MAX6381LT18D5+T MAX6381LT18D6+T
MAX6381LT18D7+T MAX6381LT19D1+T MAX6381LT19D2+T MAX6381LT19D3+T MAX6381LT19D4+T
MAX6381LT19D5+T MAX6381LT19D6+T MAX6381LT19D7+T MAX6381LT20D1+T MAX6381LT20D2+T
MAX6381LT20D3+T MAX6381LT20D4+T MAX6381LT20D5+T MAX6381LT20D6+T MAX6381LT20D7+T
MAX6381LT21D1+T MAX6381LT21D2+T MAX6381LT21D3+T MAX6381LT21D4+T MAX6381LT21D5+T
MAX6381LT21D6+T MAX6381LT21D7+T MAX6381LT22D2+T MAX6381LT22D3+T MAX6381LT22D4+T
MAX6381LT22D5+T MAX6381LT22D6+T MAX6381LT22D7+T MAX6381LT23D1+T MAX6381LT23D2+T
MAX6381LT23D3+T MAX6381LT23D4+T MAX6381LT23D5+T MAX6381LT23D6+T MAX6381LT23D7+T
MAX6381LT24D1+T MAX6381LT24D2+T MAX6381LT24D3+T MAX6381LT24D4+T MAX6381LT24D5+T
MAX6381LT24D6+T MAX6381LT24D7+T MAX6381LT25D1+T MAX6381LT25D2+T MAX6381LT25D3+T
工业千兆位以太网 PHY 参考设计
电子工程世界
