MAX6421XS30+T - Maxim Integrated - Datasheet.Directory

General Description

The MAX6340/MAX6421–MAX6426 low-power micropro-

cessor supervisor circuits monitor system voltages from

1.6V to 5V. These devices perform a single function: they

assert a reset signal whenever the VCC supply voltage

falls below its reset threshold. The reset output remains

asserted for the reset timeout period after VCC rises

above the reset threshold. The reset timeout is externally

set by a capacitor to provide more flexibility.

The MAX6421/MAX6424 have an active-low, push-

pull reset output. The MAX6422 has an active-high, push-

pull reset output and the MAX6340/MAX6423/ MAX6425/

MAX6426 have an active-low, open-drain reset output.

The MAX6421/MAX6422/MAX6423 are offered in 4-pin

SC70 or SOT143 packages. The MAX6340/MAX6424/

MAX6425/MAX6426 are available in 5-pin SOT23-5

packages.

Applications

●Portable Equipment

●Battery-Powered Computers/Controllers

●Automotive

●Medical Equipment

●Intelligent Instruments

●Embedded Controllers

●Critical µP Monitoring

●Set-Top Boxes

●Computers

Benets and Features

●Monitor System Voltages from 1.6V to 5V

●Capacitor-Adjustable Reset Timeout Period

●Low Quiescent Current (1.6µA typ)

●Three RESET Output Options

Push-Pull RESET

Open-Drain RESET

●Guaranteed Reset Valid to VCC = 1V

●Immune to Short VCC Transients

●Small 4-Pin SC70, 4-Pin SOT143, and 5-Pin SOT23

Packages

●MAX6340 Pin Compatible with LP3470

●MAX6424/MAX6425 Pin Compatible with

NCP300–NCP303, MC33464/MC33465,

S807/S808/S809, and RN5VD

●MAX6426 Pin Compatible with PST92XX

19-2440; Rev 7; 1/16

Typical Operating Circuit, Selector Guide, and Ordering

Information appear at end of data sheet.

GND

( ) ARE FOR THE MAX6422

VCC 1 4

SRT

MAX6421X

MAX6422X

MAX6423X

SC70

TOP VIEW

RESET

(RESET)

MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Pin Configurations continued at end of data sheet.

Pin Congurations

All Voltages Referenced to GND

VCC .......................................................................-0.3V to +6.0V

SRT, RESET, RESET (push-pull) ............. -0.3V to (VCC + 0.3V)

RESET (open drain) .............................................-0.3V to +6.0V

Input Current (all pins) ......................................................±20mA

Output Current (RESET, RESET) ....................................±20mA

Continuous Power Dissipation (TA = +70°C)

4-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW

4-Pin SOT143 (derate 4mW/°C above +70°C) ...........320mW

5-Pin SOT23 (derate 7.1mW/°C above +70°C) ..........571mW

Operating Temperature Range ......................... -40°C to +125°C

Storage Temperature Range ........................... .-65°C to +150°C

Junction Temperature ...................................................... +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Note 1: Devices production tested at +25°C. Overtemperature limits are guaranteed by design.

(VCC = 1V to 5.5V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at VCC = 5V and TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range VCC 1.0 5.5 V

Supply Current ICC

VCC ≤ 5.0V 2.5 4.2

µA

VCC ≤ 3.3V 1.9 3.4

VCC ≤ 2.0V 1.6 2.5

VCC Reset Threshold Accuracy VTH

TA = +25°C VTH - 1.5% VTH + 1.5% V

TA = -40°C to +125°C VTH - 2.5% VTH + 2.5%

Hysteresis VHYST 4 x VTH mV

VCC to Reset Delay tRD VCC falling at 1mV/µs 80 µs

Reset Timeout Period tRP

CSRT = 1500pF 3.00 4.375 5.75 ms

CSRT = 0 0.275

VSRT Ramp Current IRAMP VSRT = 0 to 0.65V; VCC = 1.6V to 5V 240 nA

VSRT Ramp Threshold VTH-RAMP VCC = 1.6V to 5V (VRAMP rising) 0.65 V

RAMP Threshold Hysteresis VRAMP falling threshold 33 mV

RESET Output Voltage Low VOL

VCC ≥ 1.0V, ISINK = 50µA 0.3

VVCC ≥ 2.7V, ISINK = 1.2mA 0.3

VCC ≥ 4.5V, ISINK = 3.2mA 0.4

RESET Output Voltage High,

Push-Pull VOH

VCC ≥ 1.8V, ISOURCE = 200µA 0.8 x VCC

VVCC ≥ 2.25V, ISOURCE = 500µA 0.8 x VCC

VCC ≥ 4.5V, ISOURCE = 800µA 0.8 x VCC

RESET Output Leakage Current,

Open-Drain ILKG VCC > VTH, reset not asserted 1.0 µA

RESET Output Voltage High VOH

VCC ≥ 1.0V, ISOURCE = 1µA 0.8 x VCC

VCC ≥ 1.8V, ISOURCE = 150µA 0.8 x VCC

VCC ≥ 2.7V, ISOURCE = 500µA 0.8 x VCC

VCC ≥ 4.5V, ISOURCE = 800µA 0.8 x VCC

RESET Output Voltage Low VOL

VCC ≥ 1.8V, ISINK = 500µA 0.3

VVCC ≥ 2.7V, ISINK = 1.2mA 0.3

VCC ≥ 4.5V, ISINK = 3.2mA 0.4

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Electrical Characteristics

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.

Absolute Maximum Ratings

(VCC = 5V, CSRT = 1500pF, TA = +25°C, unless otherwise noted.)

0.994

0.998

0.996

1.002

1.000

1.004

1.006

-50 25 50-25 0 75 100 125

NORMALIZED RESET THRESHOLD

vs. TEMPERATURE

MAX6421/26 toc08

TEMPERATURE (°C)

NORMALIZED RESET THRESHOLD

POWER-UP/POWER-DOWN

CHARACTERISTIC

MAX6421/26 toc07

1V/div

VCC

RESET

VTH = 1.6V

400s/div

VCC TO RESET DELAY

vs. TEMPERATURE (VCC FALLING)

MAX6421/26 toc06

110

100

140

150

130

120

160

VCC TO RESET DELAY Sµs)

-50 0 25-25 50 75 100 125

TEMPERATURE (°C)

VCC FALLING AT 1mVs

100

150

125

175

0 400200 600 800 1000

MAXIMUM TRANSIENT DURATION

vs. RESET THRESHOLD OVERDRIVE

MAX6421/26 toc05

RESET THRESHOLD OVERDRIVE (mV)

TRANSIENT DURATION (s)

RESET OCCURS

ABOVE THE CURVE

VTH = 2.95V

RESET TIMEOUT PERIOD

vs. TEMPERATURE

MAX6421/26 toc04

200

250

350

300

500

550

450

400

600

RESET TIMEOUT PERIOD (µs)

-50 0 25-25 50 75 100 125

TEMPERATURE (°C)

CSRT = 0

4.10

4.20

4.15

4.25

4.30

-50 0-25 25 50 75 100 125

RESET TIMEOUT PERIOD

vs. TEMPERATURE

MAX6421/26 toc03

TEMPERATURE (°C)

RESET TIMEOUT PERIOD (ms)

CSRT = 1500pF

0.1

100

1000

10,000

0.001 0.10.01 1 10 100 1000

RESET TIMEOUT PERIOD vs. CSRT

MAX6421/26 toc02

CSRT (nF)

RESET TIMEOUT PERIOD (ms)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0 21 3 4 5 6

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX6421/26 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

TA = +25°C

TA = +125°C

TA = -40°C

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Typical Operating Characteristics

Detailed Description

Reset Output

The reset output is typically connected to the reset input of

a µP. A µP’s reset input starts or restarts the µP in a known

state. The MAX6340/MAX6421–MAX6426 µP superviso-

ry circuits provide the reset logic to prevent code-execu-

tion errors during power-up, power-down, and brownout

conditions (see Typical Operating Characteristics).

RESET changes from high to low whenever VCC drops

below the threshold voltage. Once VCC exceeds the

threshold voltage, RESET remains low for the capaci-

tor-adjustable reset timeout period.

The MAX6422 active-high RESET output is the inverse

logic of the active-low RESET output. All device outputs

are guaranteed valid for VCC > 1V.

The MAX6340/MAX6423/MAX6425/MAX6426 are open-

drain RESET outputs. Connect an external pullup resistor

to any supply from 0 to 5.5V. Select a resistor value large

enough to register a logic low when RESET is asserted

and small enough to register a logic high while supply-

ing all input current and leakage paths connected to the

RESET line. A 10kΩ to 100kΩ pullup is sufficient in most

applications.

Selecting a Reset Capacitor

The reset timeout period is adjustable to accommodate

a variety of µP applications. Adjust the reset timeout

period (tRP) by connecting a capacitor (CSRT) between

SRT and ground. Calculate the reset timeout capacitor

as follows:

Figure 1. MAX6340/MAX6423/MAX6425/MAX6426 Open-Drain

RESET Output Allows Use with Multiple Supplies

NAME FUNCTIONMAX6340

MAX6421

MAX6422

MAX6423

MAX6424

MAX6425 MAX6426

SOT23 SOT143 SC70 SOT23 SOT23

1 3 3 5 1 SRT

Set Reset Timeout Input. Connect a capacitor between

SRT and ground to set the timeout period. Determine the

period as follows: tRP = 2.73 × 106 × CSRT + 275µs with

tRP in seconds and CSRT in farads

2 1 2 3 2, 3 GND Ground

3 — — 4 — N.C. Not Internally Connected. Can be connected to GND

4 2 1 2 5 VCC Supply Voltage and Reset Threshold Monitor Input

4 4

1 4 RESET

RESET changes from high to low whenever VCC drops

below the selected reset threshold voltage. RESET

remains low for the reset timeout period after VCC exceeds

the reset threshold

— — — RESET

RESET changes from low to high whenever VCC drops

below the selected reset threshold voltage. RESET

remains high for the reset timeout period after VCC

exceeds the reset threshold

MAX6340

MAX6423

MAX6425

MAX6426

VREF

CSRT

SRT RESET

TIMEOUT

GND

RESET

LASER-TRIMMED

RESISTORS

VCC

3.3V

10kΩ

5.0V

SYSTEM

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Pin Description

CSRT = (tRP - 275µs) / (2.73 5 106)

where tRP is in seconds and CSRT is in farads.

The reset delay time is set by a current/capacitor-con-

trolled ramp compared to an internal 0.65V reference. An

internal 240nA ramp current source charges the external

capacitor. The charge to the capacitor is cleared when a

reset condition is detected. Once the reset condition is

removed, the voltage on the capacitor ramps according to

the formula: dV/dt = I/C. The CSRT capacitor must ramp to

0.65V to deassert the reset. CSRT must be a low-leakage

(<10nA) type capacitor; ceramic is recommended.

Operating as a Voltage Detector

The MAX6340/MAX6421–MAX6426 can be operated in

a voltage detector mode by floating the SRT pin. The

reset delay times for VCC rising above or falling below the

threshold are not significantly different. The reset output

is deasserted smoothly without false pulses.

Applications Information

Interfacing to Other Voltages for Logic

Compatibility

The open-drain outputs of the MAX6340/MAX6423/

MAX6425/MAX6426 can be used to interface to µPs with

other logic levels. As shown in Figure 1, the open-drain

output can be connected to voltages from 0 to 5.5V. This

allows for easy logic compatibility to various µPs.

Wired-OR Reset

To allow auxiliary circuitry to hold the system in reset,

an external open-drain logic signal can be connected

to the open-drain RESET of the MAX6340/MAX6423/

MAX6425/MAX6426, as shown in Figure 2. This config-

uration can reset the µP, but does not provide the reset

timeout when the external logic signal is released.

Negative-Going VCC Transients

In addition to issuing a reset to the µP during power-up,

power-down, and brownout conditions, these supervisors

are relatively immune to short-duration negative-go-

ing transients (glitches). The graph Maximum Transient

Duration vs. Reset Threshold Overdrive in the Typical

Operating Characteristics shows this relationship.

The area below the curve of the graph is the region in

which these devices typically do not generate a reset

pulse. This graph was generated using a negative-going

pulse applied to VCC, starting above the actual reset

threshold (VTH) and ending below it by the magnitude

indicated (reset-threshold overdrive). As the magnitude of

the transient decreases (farther below the reset thresh-

old), the maximum allowable pulse width decreases.

Typically, a VCC transient that goes 100mV below the

reset threshold and lasts 50µs or less does not cause a

reset pulse to be issued.

Ensuring a Valid RESET or RESET

Down to VCC = 0

When VCC falls below 1V, RESET/RESET current-sinking

(sourcing) capabilities decline drastically. In the case of

the MAX6421/MAX6424, high-impedance CMOS-logic

inputs connected to RESET can drift to undetermined

voltages. This presents no problems in most applications,

since most µPs and other circuitry do not operate with

VCC below 1V.

In those applications where RESET must be valid down

to zero, adding a pulldown resistor between RESET

and ground sinks any stray leakage currents, holding

RESET low (Figure 3). The value of the pulldown resis-

tor is not critical; 100kΩ is large enough not to load

RESET and small enough to pull RESET to ground. For

applications using the MAX6422, a 100kΩ pullup resis-

Figure 2. Wired-OR Reset Circuit

VDD

VCC

MAX6340

MAX6423

MAX6425

MAX6426

RESET

GND

OPEN-DRAIN

LOGIC

µP

RESET

10kΩ

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

tor between RESET and VCC holds RESET high when

VCC falls below 1V (Figure 4). Open-drain RESET ver-

sions are not recommended for applications requiring

valid logic for VCC down to zero.

Layout Consideration

SRT is a precise current source. When developing the

layout for the application, be careful to minimize board

capacitance and leakage currents around this pin. Traces

connected to SRT should be kept as short as possible.

Traces carrying high-speed digital signals and traces with

large voltage potentials should be routed as far from SRT

as possible. Leakage current and stray capacitance (e.g.,

a scope probe) at this pin could cause errors in the reset

timeout period. When evaluating these parts, use clean

prototype boards to ensure accurate reset periods.

Table 1. Reset Threshold Voltage Suffix

Figure 4. Ensuring RESET Valid to VCC = 0

Figure 3. Ensuring RESET Valid to VCC = 0

SUFFIX MIN TYP MAX

16 1.536 1.575 1.614

17 1.623 1.665 1.707

18 1.755 1.800 1.845

19 1.853 1.900 1.948

20 1.950 2.000 2.050

21 2.048 2.100 2.153

22 2.133 2.188 2.243

23 2.313 2.313 2.371

24 2.340 2.400 2.460

25 2.438 2.500 2.563

26 2.559 2.625 2.691

27 2.633 2.700 2.768

28 2.730 2.800 2.870

29 2.852 2.925 2.998

30 2.925 3.000 3.075

31 2.998 3.075 3.152

32 3.120 3.200 3.280

33 3.218 3.300 3.383

34 3.315 3.400 3.485

35 3.413 3.500 3.558

36 3.510 3.600 3.690

37 3.608 3.700 3.793

38 3.705 3.800 3.895

39 3.803 3.900 3.998

40 3.900 4.000 4.100

41 3.998 4.100 4.203

42 4.095 4.200 4.305

43 4.193 4.300 4.408

44 4.266 4.375 4.484

45 4.388 4.500 4.613

46 4.509 4.625 4.741

47 4.583 4.700 4.818

48 4.680 4.800 4.920

49 4.778 4.900 5.023

50 4.875 5.000 5.125

MAX6422

GND

VCC

RESET

100k

MAX6421

MAX6424

GND

VCC

RESET

100k

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

*Sample stock is generally held on all standard versions. Contact

factory for availability of nonstandard versions.

Standard Versions Table

PART* OUTPUT STAGE

MAX6423US16+T Open-Drain RESET

MAX6423XS16+T Open-Drain RESET

MAX6423US22+T Open-Drain RESET

MAX6423XS22+T Open-Drain RESET

MAX6423US26+T Open-Drain RESET

MAX6423XS26+T Open-Drain RESET

MAX6423US29+T Open-Drain RESET

MAX6423XS29+T Open-Drain RESET

MAX6423US46+T Open-Drain RESET

MAX6423XS46+T Open-Drain RESET

MAX6424UK16+T Push-Pull RESET

MAX6424UK22+T Push-Pull RESET

MAX6424UK26+T Push-Pull RESET

MAX6424UK29+T Push-Pull RESET

MAX6424UK46+T Push-Pull RESET

MAX6425UK16+T Open-Drain RESET

MAX6425UK22+T Open-Drain RESET

MAX6425UK26+T Open-Drain RESET

MAX6425UK29+T Open-Drain RESET

MAX6425UK46+T Open-Drain RESET

MAX6426UK16+T Open-Drain RESET

MAX6426UK22+T Open-Drain RESET

MAX6426UK26+T Open-Drain RESET

MAX6426UK29+T Open-Drain RESET

MAX6426UK46+T Open-Drain RESET

PART* OUTPUT STAGE

MAX6340UK16+T Open-Drain RESET

MAX6340UK22+T Open-Drain RESET

MAX6340UK26+T Open-Drain RESET

MAX6340UK29+T Open-Drain RESET

MAX6340UK46+T Open-Drain RESET

MAX6421US16+T Push-Pull RESET

MAX6421XS16+T Push-Pull RESET

MAX6421US22+T Push-Pull RESET

MAX6421XS22+T Push-Pull RESET

MAX6421US26+T Push-Pull RESET

MAX6421XS26+T Push-Pull RESET

MAX6421US29+T Push-Pull RESET

MAX6421XS29+T Push-Pull RESET

MAX6421US46+T Push-Pull RESET

MAX6421XS46+T Push-Pull RESET

MAX6422US16+T Push-Pull RESET

MAX6422XS16+T Push-Pull RESET

MAX6422US22+T Push-Pull RESET

MAX6422XS22+T Push-Pull RESET

MAX6422US26+T Push-Pull RESET

MAX6422XS26+T Push-Pull RESET

MAX6422US29+T Push-Pull RESET

MAX6422XS29+T Push-Pull RESET

MAX6422US46+T Push-Pull RESET

MAX6422XS46+T Push-Pull RESET

MAX6421

MAX6424

VREF

CSRT

SRT RESET

TIMEOUT

GND

RESET

LASER-TRIMMED

RESISTORS

VCC

RESET

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Typical Operating Circuit

PART PUSH-PULL RESET PUSH-PULL RESET OPEN-DRAIN RESET PIN-PACKAGE

MAX6340 — — ✔5 SOT23

MAX6421 ✔— — 4 SOT143/SC70

MAX6422 — ✔— 4 SOT143/SC70

MAX6423 — — ✔4 SOT143/SC70

MAX6424 ✔— — 5 SOT23

MAX6425 — — ✔5 SOT23

MAX6426 — — ✔5 SOT23

VCC

N.C.

1 5 SRT

MAX6424

MAX6425

SOT23

TOP VIEW

3 4

RESET

GND

1 5 VCC

MAX6426

SOT23

3 4

SRT

GND RESET

VCC

N.C.

1 5SRT

MAX6340

SOT23

3 4

RESET

GND

VCC

1 4

SRT

MAX6421U

MAX6422U

MAX6423U

SOT143

RESET

(RESET)

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Selector Guide

Pin Congurations (continued)

PACKAGE

TYPE

PACKAGE

CODE

OUTLINE

NO.

LAND

PATTERN NO.

4 SC70 X4+1 21-0098 90-0187

4 SOT143 U4+1 21-0052 90-0183

5 SOT23 U5+2 21-0057 90-0174

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Chip Information

TRANSISTOR COUNT: 295

PROCESS: BiCMOS

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.

Note: The MAX6340/MAX6421–MAX6426 are available with factory-trimmed

reset thresholds from 1.575V to 5.0V in approximately 0.1V increments.

Insert the desired nominal reset threshold suffix (from Table 1) into the

blanks. There are 50 standard versions with a required order increment

of 2500 pieces. Sample stock is generally held on standard versions

only (see Standard Versions Table). Required order increment is

10,000 pieces for nonstandard versions. Contact factory for availability.

All devices are available in tape-and-reel only.

Devices are available in both leaded and lead-free packaging.

“+” Denotes Lead(Pb)-free packages and “-” denotes leaded packages.

For top mark information, please go to https://www.maximinte-

grated.com/en/design/packaging/topmark/

PART TEMP RANGE PIN-PACKAGE

MAX6340UK_ _+T -40°C to +125°C 5 SOT23-5

MAX6340UK_ _/V+T -40°C to +125°C 5 SOT23-5

MAX6421XS_ _+T -40°C to +125°C 4 SC70-4

MAX6421US_ _+T -40°C to +125°C 4 SOT143-4

MAX6421US_ _-T -40°C to +125°C 4 SOT143-4

MAX6422XS_ _+T -40°C to +125°C 4 SC70-4

MAX6422US_ _+T -40°C to +125°C 4 SOT143-4

MAX6422US_ _-T -40°C to +125°C 4 SOT143-4

MAX6423XS_ _+T -40°C to +125°C 4 SC70-4

MAX6423US_ _+T -40°C to +125°C 4 SOT143-4

MAX6423US_ _-T -40°C to +125°C 4 SOT143-4

MAX6424UK_ _+T -40°C to +125°C 5 SOT23-5

MAX6424UK_ _-T -40°C to +125°C 5 SOT23-5

MAX6425UK_ _+T -40°C to +125°C 5 SOT23-5

MAX6425UK_ _-T -40°C to +125°C 5 SOT23-5

MAX6426UK_ _+T -40°C to +125°C 5 SOT23-5

Ordering Information

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

5 3/14 Added /V OPN to Ordering Information 1

6 12/15 Added lead-free part numbers to Ordering Information table and removed top

mark information from Standard Versions table 1, 8

7 1/16 Changed MAX6340UK_ _/V-T to MAX6340UK_ _/V+T in Ordering

Information table 9

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.

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MAX6340/MAX6421–

MAX6426

Low-Power, SC70/SOT µP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Revision History

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MAX6340UK39+T MAX6340UK40+T MAX6340UK41+T MAX6340UK42+T MAX6340UK43+T MAX6340UK44+T

MAX6340UK45+T MAX6340UK46+T MAX6340UK47+T MAX6340UK49+T MAX6340UK50+T MAX6421US16+T

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