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  • The Smart Reset™ devices provide a useful feature that ensures inadvertent short reset push-button closures do not cause system resets. This is done by implementing extended Smart Reset™ input delay time (tSRC) and combined push-button inputs, which together 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-buttons are connected to microcontroller interrupt inputs, and are 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 STM6524 has two combined delayed Smart Reset™ inputs (SR0,SR1) with preset delayed Smart Reset™ setup time (tSRC). The reset output is asserted after both of the Smart Reset™ inputs were held active for the selected tSRCdelay time. Depending on selected option theRSToutput remains asserted either until at least oneSRinput 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 reset output,RST, is active low or active high, push-pull or open drain with optional pull-up resistor. The device fully operates over a broad VCCrange 1.65 V to 5.5 V. Below 1.575 V typ. the inputs are ignored and outputs are deasserted; the deasserted reset output levels are then valid down to 1.0 V.

    Key Features

    • Operating voltage 1.65 V to 5.5 V
    • Low supply current 1.5 μA
    • Integrated test mode
    • Dual Smart Reset™ push-button inputs with fixed extended reset setup delay (tSRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal pull-up resistor
    • Push-button controlled reset pulse duration
      • Option 1: fully push-button controlled, no fixed or minimum pulse width guaranteed
      • Option 2: defined output reset pulse duration (tREC), factory-programmed
    • No power-on reset
    • Single reset output
      • Active low or active high
      • Push-pull or open drain with optional pull-up resistor
    • Fixed Smart Reset™ input logic voltage levels
    • Operating temperature: –40 C to +85 C
    • UDFN6 package: 1.6 mm x 1.3 mm
    • ECOPACK®2 (RoHS compliant, Halogen-Free)

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM6524AHARDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3
STM6524ALABDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3
STM6524ALARDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3
STM6524APARDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3
STM6524AUABDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3
STM6524AUARDL6F
Active
UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 Industrial Ecopack3

STM6524AHARDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6524ALABDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6524ALARDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6524APARDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6524AUABDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6524AUARDL6F

Package:

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Material Declaration**:

Marketing Status

Active

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Reset pulse width (mS) (min)
Budgetary Price (US$)*/Qty
More info
min
max
STM6524AHARDL6F Available at 3 distributors

Distributor availability ofSTM6524AHARDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4918 1 Order Now
MOUSER WORLDWIDE 6127 1 Order Now
Farnell Element14 EUROPE 5400 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

4918

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

6127

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

Buy Direct
Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 1.28 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

360

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524AUARDL6F Available at 2 distributors

Distributor availability ofSTM6524AUARDL6F

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 5697 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

ARROW

Stock

3000

Min.Order

3000

Region

AMERICA Order Now

MOUSER

Stock

5697

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-02

Buy Direct
Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 1.28 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

360

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524ALARDL6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 1.28 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

360

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524AUABDL6F Available at 4 distributors

Distributor availability ofSTM6524AUABDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17199 1 Order Now
COMPEL EUROPE 6 1 Order Now
Newark Element14 AMERICA 700 0 Order Now
MOUSER WORLDWIDE 7924 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

17199

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

6

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

700

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7924

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-02

Buy Direct
Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 240 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

480

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524ALABDL6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 240 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

480

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524APARDL6F Available at 2 distributors

Distributor availability ofSTM6524APARDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 495 1 Order Now
P&S ASIA/PACIFIC 2620 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

495

Min.Order

1

Region

WORLDWIDE Order Now

P&S

Stock

2620

Min.Order

1

Region

ASIA/PACIFIC Order Now

Distributor reported inventory date: 2020-12-02

Active
EAR99 NEC Tape And Reel UDFN-6L 1.3X1.6 X0.55,PITCH 0.40 -40 85 1.28 0.3 / 1k
MORE INFO

Reset pulse width (mS) (max):

360

Unit Price (US$):

0.3

Country of Origin:

MALAYSIA

STM6524AHARDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

Distributor availability ofSTM6524AHARDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4918 1 Order Now
MOUSER WORLDWIDE 6127 1 Order Now
Farnell Element14 EUROPE 5400 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

4918

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

6127

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

1.28

Reset pulse width (mS) (max)

360

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

STM6524AUARDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

Distributor availability ofSTM6524AUARDL6F

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 5697 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

ARROW

Stock

3000

Min.Order

3000

Region

AMERICA Order Now

MOUSER

Stock

5697

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

1.28

Reset pulse width (mS) (max)

360

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

STM6524ALARDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

1.28

Reset pulse width (mS) (max)

360

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

STM6524AUABDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

Distributor availability ofSTM6524AUABDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17199 1 Order Now
COMPEL EUROPE 6 1 Order Now
Newark Element14 AMERICA 700 0 Order Now
MOUSER WORLDWIDE 7924 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

17199

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

6

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

700

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7924

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

240

Reset pulse width (mS) (max)

480

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

STM6524ALABDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

240

Reset pulse width (mS) (max)

480

Budgetary Price (US$)* / Qty

0.3 / 1k

Country of Origin

MALAYSIA

STM6524APARDL6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3 / 1k

Distributor availability ofSTM6524APARDL6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 495 1 Order Now
P&S ASIA/PACIFIC 2620 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

495

Min.Order

1

Region

WORLDWIDE Order Now

P&S

Stock

2620

Min.Order

1

Region

ASIA/PACIFIC Order Now

Distributor reported inventory date: 2020-12-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UDFN-6L 1.3X1.6 X0.55,PITCH 0.40

Operating Temperature (°C)

(min)

-40

(max)

85

Reset pulse width (mS) (min)

1.28

Reset pulse width (mS) (max)

360

Budgetary Price (US$)* / Qty

0.3 / 1k

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