Overview
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Sample & Buy
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Documentation
CAD Resources
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Quality & Reliability
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Sales Briefcase

Product overview

Description

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).
  • All 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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM809

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Voltage Reset 1 (V) (typ)
Budgetary Price (US$)*/Qty
More info
min
max
STM809LWX6F Available at 3 distributors

Distributor availability ofSTM809LWX6F

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1700 1 Buy from Distributor
MOUSER WORLDWIDE 201 1 Buy from Distributor
Farnell Element14 EUROPE 201 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

RS COMPONENTS

Stock

1700

Min.Order

1

MOUSER

Stock

201

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

201

Min.Order

1

Distributor reported inventory date: 2021-10-16

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SOT23 -40 85 4.63 0.1955 / 1k
MORE INFO

Voltage Reset 2 (V) (typ):

-

Unit Price (US$):

0.1955

Country of Origin:

MALAYSIA

STM809TWX6F Available at 1 distributors

Distributor availability ofSTM809TWX6F

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4790 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

Farnell Element14

Stock

4790

Min.Order

1

Distributor reported inventory date: 2021-10-16

Active
EAR99 NEC Tape And Reel SOT23 -40 85 3.08 0.17 / 1k
MORE INFO

Voltage Reset 2 (V) (typ):

-

Unit Price (US$):

0.17

Country of Origin:

MALAYSIA

STM809MWX6F Available at 2 distributors

Distributor availability ofSTM809MWX6F

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1550 1 Buy from Distributor
Newark Element14 AMERICA 12000 0 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

RS COMPONENTS

Stock

1550

Min.Order

1

Newark Element14

Stock

12000

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2021-10-16

Active
EAR99 NEC Tape And Reel SOT23 -40 85 4.38 0.1955 / 1k
MORE INFO

Voltage Reset 2 (V) (typ):

-

Unit Price (US$):

0.1955

Country of Origin:

MALAYSIA

STM809SWX6F Available at 3 distributors

Distributor availability ofSTM809SWX6F

Distributor Name
Region Stock Min. Order Third party link
YOSUN ASIA/PACIFIC 3000 1 Buy from Distributor
Farnell Element14 EUROPE 2750 1 Buy from Distributor
ANGLIA Live EUROPE 67140 10 Buy from Distributor

Distributor reported inventory date: 2021-10-17

Distributor Name

YOSUN

Stock

3000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

Farnell Element14

Stock

2750

Min.Order

1

ANGLIA Live

Stock

67140

Min.Order

10

Distributor reported inventory date: 2021-10-17

Active
EAR99 NEC Tape And Reel SOT23 -40 85 2.93 0.1955 / 1k
MORE INFO

Voltage Reset 2 (V) (typ):

-

Unit Price (US$):

0.1955

Country of Origin:

MALAYSIA

STM809RWX6F Available at 2 distributors

Distributor availability ofSTM809RWX6F

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 12 1 Buy from Distributor
Farnell Element14 EUROPE 1180 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

MOUSER

Stock

12

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1180

Min.Order

1

Distributor reported inventory date: 2021-10-16

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23 -40 85 2.63 0.1955 / 1k
MORE INFO

Voltage Reset 2 (V) (typ):

-

Unit Price (US$):

0.1955

Country of Origin:

MALAYSIA

STM809LWX6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1955 / 1k

Distributor availability ofSTM809LWX6F

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1700 1 Buy from Distributor
MOUSER WORLDWIDE 201 1 Buy from Distributor
Farnell Element14 EUROPE 201 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

RS COMPONENTS

Stock

1700

Min.Order

1

MOUSER

Stock

201

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

201

Min.Order

1

Distributor reported inventory date: 2021-10-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-40

(max)

85

Voltage Reset 1 (V) (typ)

4.63

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.1955 / 1k

Country of Origin

MALAYSIA

STM809TWX6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.17 / 1k

Distributor availability ofSTM809TWX6F

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4790 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

Farnell Element14

Stock

4790

Min.Order

1

Distributor reported inventory date: 2021-10-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-40

(max)

85

Voltage Reset 1 (V) (typ)

3.08

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.17 / 1k

Country of Origin

MALAYSIA

STM809MWX6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1955 / 1k

Distributor availability ofSTM809MWX6F

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1550 1 Buy from Distributor
Newark Element14 AMERICA 12000 0 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

RS COMPONENTS

Stock

1550

Min.Order

1

Newark Element14

Stock

12000

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2021-10-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-40

(max)

85

Voltage Reset 1 (V) (typ)

4.38

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.1955 / 1k

Country of Origin

MALAYSIA

STM809SWX6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1955 / 1k

Distributor availability ofSTM809SWX6F

Distributor Name
Region Stock Min. Order Third party link
YOSUN ASIA/PACIFIC 3000 1 Buy from Distributor
Farnell Element14 EUROPE 2750 1 Buy from Distributor
ANGLIA Live EUROPE 67140 10 Buy from Distributor

Distributor reported inventory date: 2021-10-17

Distributor Name

YOSUN

Stock

3000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

Farnell Element14

Stock

2750

Min.Order

1

ANGLIA Live

Stock

67140

Min.Order

10

Distributor reported inventory date: 2021-10-17

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-40

(max)

85

Voltage Reset 1 (V) (typ)

2.93

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.1955 / 1k

Country of Origin

MALAYSIA

STM809RWX6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1955 / 1k

Distributor availability ofSTM809RWX6F

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 12 1 Buy from Distributor
Farnell Element14 EUROPE 1180 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

MOUSER

Stock

12

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1180

Min.Order

1

Distributor reported inventory date: 2021-10-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23

Operating Temperature (°C)

(min)

-40

(max)

85

Voltage Reset 1 (V) (typ)

2.63

Voltage Reset 2 (V) (typ)

-

Budgetary Price (US$)* / Qty

0.1955 / 1k

Country of Origin

MALAYSIA

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