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STM6519

4-pin Smart Reset͐2;
  • active Active

The Smart ResetTMdevices provide a useful feature which ensures that inadvertent short reset push-button closures do not cause system resets. This is done by implementing an extended Smart Reset input delay time (tSRC), which ensures a safe reset and eliminates the need for a specific dedicated reset button.

This reset configuration provides versatility and allows the application to distinguish between a software generated interrupt and a hard system reset. When the input push-button is connected to the microcontroller interrupt input, and is closed for a short time, the processor can only be interrupted. If the system still does not respond properly, continuing to keep the push-buttons closed for the extended setup time tSRCcauses a hard reset of the processor through the reset output.

The STM6519 has one Smart Reset input (SR) with preset delayed Smart Reset setup time (tSRC). The reset output (RST) is asserted after the Smart Reset input is held active for the selected tSRCdelay time. The RSToutput remains asserted either until the SRinput goes to inactive logic level (i.e. neither fixed nor minimum reset pulse width is set) or the output reset pulse duration is fixed for tREC(i.e. factory-programmed). The device fully operates over a broad VCCrange from 2.0 V to 5.5 V.

pdf Download Datasheet

Key Features

  • Operating voltage range 2 V to 5.5 V
  • Low supply current 1 μA
  • Integrated test mode
  • Single Smart Reset™ push-button input with fixed extended reset setup delay (tSRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal input pull-up resistor
  • Push-button controlled reset pulse durationOption 1: fully push-button controlled, no fixed or minimum pulse width guaranteedOption 2: defined output reset pulse duration (tREC), factory-programmed
  • Single reset outputActive-low or active-highPush-pull or open drain with optional pull-up resistor
  • Fixed Smart Reset input logic voltage levels
  • Operating temperature: -40 °C to +85 °C
  • UDFN4 package 1.00 mm x 1.45 mm and UDFN6 package 1.00 mm x 1.45 mm
  • ECOPACK®2 (RoHS compliant, Halogen-Free)

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS8614: 4-pin Smart Reset™
6.0 392 KB

Publications and Collaterals

Brochure

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ST’s solutions for mobile devices
1.0.0 2,217 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeReset pulse width (min) Reset pulse width (max) Operating Temperature (min) Operating Temperature (max) Order From STUnit Price (US$)*
@ 		Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STM6519ACARUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
ARROWOrder nowAMERICA30003000
DIGIKEYOrder nowWORLDWIDE29831
MOUSEROrder nowWORLDWIDE29871
Ecopack2-
STM6519AHARUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
ARROWOrder nowAMERICA30003000
AVNETOrder nowAMERICA30000
ARROWOrder nowEUROPE270000
DIGIKEYOrder nowWORLDWIDE27901
MOUSEROrder nowWORLDWIDE89651
Ecopack2-
STM6519AHARUC6FEvaluationUDFN-4L 1.45X1.0X.055, PITCH 0.6Tape And Reel1.28360-4085-No data reported, please contact our DistributorsEcopack2-
STM6519ALARUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
P&SOrder nowASIA/PACIFIC24001
DIGIKEYOrder nowWORLDWIDE29601
MOUSEROrder nowWORLDWIDE22341
Ecopack2-
STM6519ALARUC6FEvaluationUDFN-4L 1.45X1.0X.055, PITCH 0.6Tape And Reel1.28360-4085-No data reported, please contact our DistributorsEcopack2-
STM6519APAAUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
ARROWOrder nowAMERICA30003000
DIGIKEYOrder nowWORLDWIDE22761
MOUSEROrder nowWORLDWIDE27701
Ecopack2-
STM6519APARUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
ARROWOrder nowAMERICA30003000
DIGIKEYOrder nowWORLDWIDE28481
MOUSEROrder nowWORLDWIDE59291
Ecopack2-
STM6519APARUC6FEvaluationUDFN-4L 1.45X1.0X.055, PITCH 0.6Tape And Reel1.28360-4085-No data reported, please contact our DistributorsEcopack2-
STM6519APBBUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
AVNETOrder nowAMERICA30000
FUTUREOrder nowAMERICA30003000
DIGIKEYOrder nowWORLDWIDE29551
MOUSEROrder nowWORLDWIDE30001
Ecopack2-
STM6519AUARUB6FActiveUFDFPN 1X1.45X0.6 6L PITCH0.5Tape And Reel1.28360-4085-Distributor reported inventory date: 2013-05-23
Distributor NameRegionStockMin. order
AVNETOrder nowAMERICA30000
FUTUREOrder nowAMERICA30003000
DIGIKEYOrder nowWORLDWIDE26001
MOUSEROrder nowWORLDWIDE28301
Ecopack2-
STM6519AUARUC6FEvaluationUDFN-4L 1.45X1.0X.055, PITCH 0.6Tape And Reel1.28360-4085-No data reported, please contact our DistributorsEcopack2-

(*) 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
(**) 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.

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