Dual push-button smart reset with user-adjustable setup delays

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  • STM6502 has two combined Smart Reset inputs (SR0and SR1) with delayed Smart Reset setup time (tSRC) programmed by an external capacitor on the SRC pin.

    STM6503 is similar to STM6502, has two combined delayed Smart Reset inputs (SR0, SR1) and three user-selectable delayed Smart Reset setup time (tSRC) options of 2 s, 6 s and 10 s through a three-state TSR input pin: when connected to ground, tSRC= 2 s; when left open, tSRC= 6 s; when connected to VCC, tSRC= 10 s (all the times are minimum).
    STM6504 has two independent Smart Reset inputs. SR0provides the delayed Smart Reset setup time (tSRC) function with three user-selectable tSRCoptions through a three-state TSR input pin: when connected to ground, tSRC= 2 s; when left open, tSRC= 6 s; when connected to VCC, tSRC= 10 s (all the times are minimum). SRE provides instant reset. SRE is edge-triggered with a special debounce time (tDEBOUNCE= 240 ms min.) at the falling edge after a valid reset period.
    STM6505 has two combined delayed Smart Reset inputs (SR0, SR1) and provides an adjustable reset delay setup time via an external capacitor connected to the SRC pin. The RSToutput depends also on the VCCmonitoring threshold. STM6505 also provides independent low battery detect (BLD) output controlled by the secondary external input voltage VBAT. VBATis monitored for low voltage and provides an indication on the battery low detect output pin (BLD). VBATthreshold is 1.25 V, fixed, and an external resistor divider is to be used to set the actual battery voltage threshold. VBATthreshold hysteresis is 8 mV typ. (16 mV max.). VBATis voltage monitoring input only, the device is powered only from the VCCpin; VCCmust be ≥ 1.575 V for proper operation of the VBATcomparator.

    Key Features

    • Dual Smart Reset push-button inputs with extended reset setup delay
    • Adjustable Smart Reset setup delay (tSRC): by external capacitor or three-state logic (product options): tSRC= 2, 6, 10 s (min.)
    • Power-on reset
    • SingleRSToutput, active-low, open-drain
    • Factory-programmable thresholds to monitor VCCin the range of 1.575 to 4.625 V typ.
    • Operating voltage 1.0 V (active-low output valid) to 5.5 V
    • Low supply current
    • 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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Reset pulse width (mS) (min)
Reset pulse width (mS) (max)
Temperature (°C) Marketing Status
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STM6503REAADG6F DFN8 2x2x0.75 Tape And Reel 140 480 -40
Active
0.52 1000
MORE INFO

Operating Temperature (°C) (max):

85

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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Distributor reported inventory date: 2019-07-14

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STM6503VEAADG6F DFN8 2x2x0.75 Tape And Reel 140 480 -40
Active
0.52 1000
MORE INFO

Operating Temperature (°C) (max):

85

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSTM6503VEAADG6F

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STM6503SEAADG6F DFN8 2x2x0.75 Tape And Reel 140 480 -40
Active
0.52 1000
MORE INFO

Operating Temperature (°C) (max):

85

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSTM6503SEAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
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Distributor reported inventory date: 2019-07-14

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3000

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1

Region

WORLDWIDE Order Now

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941

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3000

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Distributor reported inventory date: 2019-07-14

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STM6503REAADG6F

Package

DFN8 2x2x0.75

Packing Type

Tape And Reel

Unit Price (US$)

0.52*

Distributor availability ofSTM6503REAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
MOUSER WORLDWIDE 1543 1 Order Now

Distributor reported inventory date: 2019-07-14

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1543

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-14

Reset pulse width (mS) (min)

140

Reset pulse width (mS) (max)

480

Operating Temperature (°C)

(min)

-40

Marketing Status

Active

Unit Price (US$)

0.52

Quantity

1000

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM6503VEAADG6F

Package

DFN8 2x2x0.75

Packing Type

Tape And Reel

Unit Price (US$)

0.52*

Distributor availability ofSTM6503VEAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 743 1 Order Now
Newark Element14 AMERICA 635 0 Order Now
P&S ASIA/PACIFIC 460 1 Order Now
MOUSER WORLDWIDE 188 1 Order Now

Distributor reported inventory date: 2019-07-14

Distributor Name

DIGIKEY

Stock

743

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

635

Min.Order

0

Region

AMERICA Order Now

P&S

Stock

460

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

188

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-14

Reset pulse width (mS) (min)

140

Reset pulse width (mS) (max)

480

Operating Temperature (°C)

(min)

-40

Marketing Status

Active

Unit Price (US$)

0.52

Quantity

1000

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM6503SEAADG6F

Package

DFN8 2x2x0.75

Packing Type

Tape And Reel

Unit Price (US$)

0.52*

Distributor availability ofSTM6503SEAADG6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
MOUSER WORLDWIDE 941 1 Order Now
Farnell Element14 EUROPE 3000 1 Order Now

Distributor reported inventory date: 2019-07-14

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

941

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-14

Reset pulse width (mS) (min)

140

Reset pulse width (mS) (max)

480

Operating Temperature (°C)

(min)

-40

Marketing Status

Active

Unit Price (US$)

0.52

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
      DS6435
      Dual push-button Smart Reset™ with user-adjustable setup delays
      6.1
      417.22 KB
      PDF
      DS6435

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

    • 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)

    • Description Version Size Action
      UM0911
      STM6503 Smart Reset™ demonstration board
      1.0
      145.45 KB
      PDF
      UM0911

      STM6503 Smart Reset™ demonstration board

Presentations & Training Material

    • Description Version Size Action
      Health and Wellness Mobility Cloud computing
      1.32 MB
      PDF
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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
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      Smart Reset ICs dual push-button

    • Description Version Size Action
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM6503REAADG6F
Active
DFN8 2x2x0.75 Industrial Ecopack3
STM6503SEAADG6F
Active
DFN8 2x2x0.75 Industrial Ecopack3
STM6503VEAADG6F
Active
DFN8 2x2x0.75 Industrial Ecopack3

STM6503REAADG6F

Package:

DFN8 2x2x0.75

Material Declaration**:

Marketing Status

Active

Package

DFN8 2x2x0.75

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6503SEAADG6F

Package:

DFN8 2x2x0.75

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN8 2x2x0.75

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6503VEAADG6F

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.