Resets and supervisors
Portfolio overview

Run your application with carefree supervision
Reset is a mandatory function
to ensure proper wake-up ofcomplex systems but also
reboot in case of failing orfrozen applications. With
the democratization of
microprocessing units, there
is an ever-increasing need forresets and supervisors.
ST’s portfolio includes:- basic or multi-voltage resets- single or dual pushbutton
Smart Resets™
- more advanced supervisors
with watchdog, early power-faildetection, battery switchover
functions

APPLICATIONS• Portable consumer devices

KEY BENEFITS• Computers• Software freeze recovery• Video games• Power failure protection• Toys, electronic games• Increased end-product robustness• Set-top boxes, Blu-ray players• Increased end-user perception of• Fitness/wellness equipmentquality• White goods• Home automation• Metering• Industrial equipment• Point of sales• Medical equipment• Healthcare devices

Scan this QR-code to access documentation
and application noteswww.st.com/reset

VOLTAGE DETECTORS
Package

OutputReset threshold (V)Reset timeout
delay (s)Supply current (µA)

Operatingtemperature (°C)

STM1061SOT23-3

Open drain, active low

1.6 to 5.5n/a

0.9-40 to 85

STM1831

SOT23-5

Open drain, active low

1.6 to 5.7

adjustable

0.8-40 to 85

Package

Manual pushbuttons

Reset pulse width (ms)Reset setup delay(s)OtherOperatingtemperature (°C)

STM6519DFN6

11.28 to 360

0.5 to 10

Test mode-40 to 85

STM6524

DFN62

1.28 to 360

0.5 to 10

Test mode-40 to 85

Package

Timeout period

Output type

Chip enable

Supply current (µA)

Operatingtemperature (°C)

SOT23-5
SC70-5

3.4 ms
6.3 ms
102 ms
1.6 sOpen drain or push pullYes

13-40 to 85

Part number

SMART RESETSPart number

WATCHDOGS
Part number

STWD100

Note : Automotive grade availability on request

SUPERVISORSPart number

Package

OutputWatchdog
input

STM6321

SOT23-5

Push pull, active highOpen drain, active low

X

STM6822

SOT23-5

Open drain, active low

X

STM706

SO8Push pull, active low

X

STM795

SO8Open drain, active low

STM819SO8Push pull, active low

Watchdog
outputManual reset
input

Power
fail in/out

Batteryswitch overChipenablegatingX

X

Batteryfreshnessseal

Vcc switch
output

X
X

X

X

X

X

X

Delayedmanualreset input

Reset 1threshold(V)

Reset 2threshold(V)X
X

RESETS
Part
numberPackage

Monitoredvoltages

OutputReset pulse
width (ms)Manualreset input

STM6315

SOT143

1

Open drain,
active low

1.5 to 1680

Yes

STM809

SOT23-3

1

Push pull,
active low

210

STM6779

SOT23-6

2

Open drain,
active low

210

STM6710

SOT23-6

4Open drain,
active low

200

STM6904

TSSOP84Open drain,
active low

STM6905

TSSOP85Open drain,
active low

Reset 3threshold(V)Reset 4threshold(V)Reset 5threshold(V)2.63 to
4.63
2.63 to
4.63
1.58 to4.63

Adjustable

Optional

5,adjustable

3.3

1.8 to 2.5

1.8,adjustable

210, 420

Yes

2.87 to3.08

1.05 to 2.33

Adjustable

Adjustable

210

Yes

2.87 to3.08

1.05 to 2.33

Adjustable

Adjustable

Yes

Adjustable© STMicroelectronics - November 2013 - Printed in United Kingdom - All rights reserved
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Order code: FLCAREFREE1113

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