dual push-button smart reset with capacitor-adjustable setup delay

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  • The Smart Reset™ devices provide a useful feature that ensures that inadvertent short reset push-button closures do not cause system resets as the extended Smart Reset™ delay setup periods are implemented. Once the valid Smart Reset™ input levels and setup delay are met, the device generates an output reset pulse for a fixed timeout period (tREC).

    The typical application hookup shows that either a single Smart Reset™ input, or both reset inputs can be connected to the applications interrupt and control both the interrupt pin and the hard reset functions. If the push-button is closed for a short time, the processor is only interrupted. If the system still does not respond properly, holding the push-button(s) for the extended setup time (tSRC) causes a hard reset of the processor. The Smart Reset™ feature helps significantly increase system stability and eliminates the need for a dedicated reset button.
    The STM65xx family of Smart Reset™ devices consists of low-current microprocessor reset circuits targeted at applications such as MP3 players, portable navigation or mobile phones, generally any application that requires delayed reset push-button(s) response for improved system stability. The devices in the STM65xx Smart Reset™ family include various combinations of useful features for the targeted applications.
    The STM6522 has two combined Smart Reset™ inputs (SR0and SR1) with delayed reset setup time (tSRC) programmed by an external capacitor on the SRC pin.

    Key Features

    • Dual Smart Reset™ push-button inputs with capacitor-adjustable extended reset setup delay (tSRC)
    • No power-on reset
    • Dual RSToutput, active-low, open-drain
    • Fixed Smart Reset™ input logic voltage levels
    • Broad operating voltage range 1.65 V to 5.5 V, inactive reset output levels valid down to 1.0 V
    • Low supply current (1.5 μA)
    • Operating temperature: industrial grade –40 °C to +85 °C
    • TDFN8 package: 2 mm x 2 mm x 0.75 mm
    • RoHS compliant

Circuit Diagram

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Part Number
Package
Packing Type
Reset pulse width (mS) (min)
Reset pulse width (mS) (max)
Temperature (°C) Marketing Status
Budgetary Price (US$)*
More info
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min
max
STM6522AAAADG6F DFN8 2x2x0.75 Tape And Reel 210 210 -40
Active
0.46 1000
MORE INFO

Operating Temperature (°C) (max):

85

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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Distributor availability ofSTM6522AAAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6287 1 Order Now
RS COMPONENTS EUROPE 1860 1 Order Now
MOUSER WORLDWIDE 3703 1 Order Now

Distributor reported inventory date: 2019-09-24

Distributor Name

DIGIKEY

Stock

6287

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1860

Min.Order

1

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EUROPE Order Now

MOUSER

Stock

3703

Min.Order

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Region

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Distributor reported inventory date: 2019-09-24

Buy now

STM6522AAAADG6F

Package

DFN8 2x2x0.75

Packing Type

Tape And Reel

Unit Price (US$)

0.46*

Distributor availability ofSTM6522AAAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6287 1 Order Now
RS COMPONENTS EUROPE 1860 1 Order Now
MOUSER WORLDWIDE 3703 1 Order Now

Distributor reported inventory date: 2019-09-24

Distributor Name

DIGIKEY

Stock

6287

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1860

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3703

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-24

Reset pulse width (mS) (min)

210

Reset pulse width (mS) (max)

210

Operating Temperature (°C)

(min)

-40

Marketing Status

Active

Unit Price (US$)

0.46

Quantity

1000

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Technical Documentation

    • Description Version Size Action
      DS6695
      Dual push-button Smart Reset™ with capacitor-adjustable setup delay
      3.0
      280.11 KB
      PDF
      DS6695

      Dual push-button Smart Reset™ with capacitor-adjustable setup delay

    • Description Version Size Action
      AN3261
      Dual push-button Smart Reset™ devices with user-adjustable setup delays
      1.1
      630.21 KB
      PDF
      AN3261

      Dual push-button Smart Reset™ devices with user-adjustable setup delays

    • Description Version Size Action
      TN0941
      Reset and supervisor ICs: frequently asked questions (FAQ)
      1.0
      328.63 KB
      PDF
      TN0941

      Reset and supervisor ICs: frequently asked questions (FAQ)

Presentations & Training Material

    • Description Version Size Action
      Health and Wellness Mobility Cloud computing
      1.32 MB
      PDF
      ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0
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Publications and Collaterals

    • Description Version Size Action
      Resets and supervisors - portfolio overview 1.0
      1.31 MB
      PDF
      Smart Reset ICs dual push-button 1.0
      767.58 KB
      PDF

      Resets and supervisors - portfolio overview

      Smart Reset ICs dual push-button

    • Description Version Size Action
      ST’s solutions for mobile devices 3.2
      2.13 MB
      PDF

      ST’s solutions for mobile devices

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM6522AAAADG6F
Active
DFN8 2x2x0.75 Industrial Ecopack3

STM6522AAAADG6F

Package:

DFN8 2x2x0.75

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN8 2x2x0.75

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.