MAX6389LT26D1+

Click here for production status of specific part numbers. 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 www.maximintegrated.com 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. www.maximintegrated.com 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) www.maximintegrated.com 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 www.maximintegrated.com 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. www.maximintegrated.com 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 www.maximintegrated.com 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. ©  2018 Maxim Integrated Products, Inc. │  10