STM809

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  • The STM809/810/811/812 MICROPROCESSOR RESET Circuits are low-power supervisory devices used to monitor power supplies. They perform a single function: asserting a reset signal whenever the VCC supply voltage drops below a preset value and keeping it asserted until VCC has risen above the preset threshold for a minimum period of time (trec). The STM811/812 also provide a push-button reset input (MR).

    Key Features

    • Lead-free, small SOT23 and SOT143 package
    • Operating temperature: –40 °C to 85 °C (industrial grade)
    • Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
    • 140 ms reset pulse width (min)
    • Two output configurationsPush-pull RST output (STM809/811)Push-pull RST output (STM810/812)
    • Guaranteed RST/RST assertion down to VCC = 1.0 V
    • Low supply current - 6 µA (typ)

Circuit Diagram

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Packing Type
Voltage Reset 1 (V) (typ)
Voltage Reset 2 (V) (typ)
Temperature (°C) Marketing Status
Budgetary Price (US$)*
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STM809LWX6F SOT23 Tape And Reel 2.63 - -40 85
Active
0.17
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Quantity:

1000

ECCN (US):

EAR99

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MALAYSIA

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STM809TWX6F SOT23 Tape And Reel 3.08 - -40 85
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STM809MWX6F SOT23 Tape And Reel 4.38 - -40 85
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STM809SWX6F SOT23 Tape And Reel 2.93 - -40 85
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STM809RWX6F SOT23 Tape And Reel 2.63 - -40 85
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Quantity:

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ECCN (US):

EAR99

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STM809LWX6F

Package

SOT23

Packing Type

Tape And Reel

Unit Price (US$)

0.17*

Distributor availability ofSTM809LWX6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6350 1 Order Now
RS COMPONENTS EUROPE 2185 1 Order Now
FUTURE WORLDWIDE 15000 3000 Order Now
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Distributor reported inventory date: 2020-02-24

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6350

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RS COMPONENTS

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2185

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1

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21002

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2780

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Distributor reported inventory date: 2020-02-24

Voltage Reset 1 (V) (typ)

2.63

Voltage Reset 2 (V) (typ)

-

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.17

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM809TWX6F

Package

SOT23

Packing Type

Tape And Reel

Unit Price (US$)

0.17*

Distributor availability ofSTM809TWX6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9000 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
AVNET AMERICA 42000 0 Order Now
FUTURE WORLDWIDE 186000 3000 Order Now
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ARROW AMERICA 6000 3000 Order Now
MOUSER WORLDWIDE 6213 1 Order Now
Farnell Element14 EUROPE 9639 1 Order Now
RUTRONIK EUROPE 18000 3000 Order Now

Distributor reported inventory date: 2020-02-24

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Stock

9000

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

42000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

186000

Min.Order

3000

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15000

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6000

Min.Order

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Stock

6213

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9639

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Stock

18000

Min.Order

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Distributor reported inventory date: 2020-02-24

Voltage Reset 1 (V) (typ)

3.08

Voltage Reset 2 (V) (typ)

-

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.17

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM809MWX6F

Package

SOT23

Packing Type

Tape And Reel

Unit Price (US$)

0.17*

Distributor availability ofSTM809MWX6F

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 11372 1 Order Now
RS COMPONENTS EUROPE 6300 1 Order Now
AVNET AMERICA 3000 0 Order Now
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Newark Element14 AMERICA 717 0 Order Now
ARROW AMERICA 45000 3000 Order Now
MOUSER WORLDWIDE 3212 1 Order Now
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Distributor reported inventory date: 2020-02-24

Distributor Name

COMPEL

Stock

11372

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

6300

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1

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3000

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Stock

6000

Min.Order

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717

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45000

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3000

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4075

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Distributor reported inventory date: 2020-02-24

Voltage Reset 1 (V) (typ)

4.38

Voltage Reset 2 (V) (typ)

-

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.17

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM809SWX6F

Package

SOT23

Packing Type

Tape And Reel

Unit Price (US$)

0.17*

Distributor availability ofSTM809SWX6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17229 1 Order Now
COMPEL EUROPE 8960 1 Order Now
RS COMPONENTS EUROPE 290 10 Order Now
AVNET AMERICA 9000 0 Order Now
FUTURE WORLDWIDE 14196 1 Order Now
ARROW AMERICA 21000 3000 Order Now
MOUSER WORLDWIDE 7370 1 Order Now
Farnell Element14 EUROPE 4464 1 Order Now
ANGLIA Live EUROPE 24670 10 Order Now

Distributor reported inventory date: 2020-02-24

Distributor Name

DIGIKEY

Stock

17229

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

8960

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

290

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

9000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

14196

Min.Order

1

Region

WORLDWIDE Order Now

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Stock

21000

Min.Order

3000

Region

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Stock

7370

Min.Order

1

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Farnell Element14

Stock

4464

Min.Order

1

Region

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ANGLIA Live

Stock

24670

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2020-02-24

Voltage Reset 1 (V) (typ)

2.93

Voltage Reset 2 (V) (typ)

-

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.17

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STM809RWX6F

Package

SOT23

Packing Type

Tape And Reel

Unit Price (US$)

0.17*

Distributor availability ofSTM809RWX6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4251 1 Order Now
RS COMPONENTS EUROPE 40 1 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
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ARROW AMERICA 36097 1 Order Now
MOUSER WORLDWIDE 4190 1 Order Now
Farnell Element14 EUROPE 3907 1 Order Now
ANGLIA Live EUROPE 3000 500 Order Now

Distributor reported inventory date: 2020-02-24

Distributor Name

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Stock

4251

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

40

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

9000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

36097

Min.Order

1

Region

AMERICA Order Now

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Stock

4190

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3907

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3000

Min.Order

500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-02-24

Voltage Reset 1 (V) (typ)

2.63

Voltage Reset 2 (V) (typ)

-

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.17

Quantity

1000

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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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM809LWX6F
Active
SOT23 Industrial Ecopack3
STM809MWX6F
Active
SOT23 Industrial Ecopack3
STM809RWX6F
Active
SOT23 Industrial Ecopack3
STM809SWX6F
Active
SOT23 Industrial Ecopack3
STM809TWX6F
Active
SOT23 Industrial Ecopack3

STM809LWX6F

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM809MWX6F

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM809RWX6F

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM809SWX6F

Package:

SOT23

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM809TWX6F

Package:

SOT23

Material Declaration**:

Marketing Status

Active

Package

SOT23

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.

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