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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 - STM812

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**
STM812LW16F
Active
SOT-143 4 Industrial Ecopack3
STM812MW16F
Active
SOT-143 4 Industrial Ecopack3
STM812RW16F
Active
SOT-143 4 Industrial Ecopack3
STM812SW16F
Active
SOT-143 4 Industrial Ecopack3
STM812TW16F
Active
SOT-143 4 Industrial Ecopack3

STM812LW16F

Package:

SOT-143 4

Material Declaration**:

Marketing Status

Active

Package

SOT-143 4

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM812MW16F

Package:

SOT-143 4

Material Declaration**:

Marketing Status

Active

Package

SOT-143 4

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM812RW16F

Package:

SOT-143 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-143 4

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM812SW16F

Package:

SOT-143 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-143 4

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM812TW16F

Package:

SOT-143 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-143 4

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

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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$)*/Qty
Voltage Reset 2 (V) (typ)
Unit Price (US$)
Country of Origin
min
max
STM812TW16F Available at 3 distributors

Distributor availability ofSTM812TW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2432 1 Buy from Distributor
RS COMPONENTS EUROPE 470 1 Buy from Distributor
MOUSER WORLDWIDE 5599 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2432

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

470

Min.Order

1

MOUSER

Stock

5599

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

Active
EAR99 NEC Tape and Reel SOT-143 4 -40 85 3.08

-

0.4875

PHILIPPINES

STM812SW16F Available at 2 distributors

Distributor availability ofSTM812SW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Buy from Distributor
MOUSER WORLDWIDE 15249 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

15249

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

Active
EAR99 NEC Tape and Reel SOT-143 4 -40 85 2.93

-

0.4875

PHILIPPINES

STM812LW16F Available at 3 distributors

Distributor availability ofSTM812LW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1320 1 Buy from Distributor
MOUSER WORLDWIDE 10660 1 Buy from Distributor
ANGLIA Live EUROPE 30000 3000 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

1320

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

10660

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

30000

Min.Order

3000

Distributor reported inventory date: 2022-08-10

Active
EAR99 NEC Tape and Reel SOT-143 4 -40 85 4.63

-

0.4875

PHILIPPINES

STM812RW16F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT-143 4 -40 85 2.63

-

0.4875

PHILIPPINES

STM812MW16F Available at 2 distributors

Distributor availability ofSTM812MW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2994 1 Buy from Distributor
MOUSER WORLDWIDE 4279 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2994

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

4279

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

Active
EAR99 NEC Tape and Reel SOT-143 4 -40 85 4.38

-

0.4875

PHILIPPINES

STM812TW16F Active

Package:
SOT-143 4
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM812TW16F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

3.08

Voltage Reset 2 (V) (typ):

-

Country of Origin:

PHILIPPINES

Distributor availability ofSTM812TW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2432 1 Buy from Distributor
RS COMPONENTS EUROPE 470 1 Buy from Distributor
MOUSER WORLDWIDE 5599 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2432

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

470

Min.Order

1

MOUSER

Stock

5599

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

STM812SW16F Active

Package:
SOT-143 4
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM812SW16F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

2.93

Voltage Reset 2 (V) (typ):

-

Country of Origin:

PHILIPPINES

Distributor availability ofSTM812SW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Buy from Distributor
MOUSER WORLDWIDE 15249 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

15249

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

STM812LW16F Active

Package:
SOT-143 4
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM812LW16F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

4.63

Voltage Reset 2 (V) (typ):

-

Country of Origin:

PHILIPPINES

Distributor availability ofSTM812LW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1320 1 Buy from Distributor
MOUSER WORLDWIDE 10660 1 Buy from Distributor
ANGLIA Live EUROPE 30000 3000 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

1320

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

10660

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

30000

Min.Order

3000

Distributor reported inventory date: 2022-08-10

STM812RW16F Active

Package:
SOT-143 4
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM812RW16F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

2.63

Voltage Reset 2 (V) (typ):

-

Country of Origin:

PHILIPPINES

No availability of distributors reported, please contact our sales office

STM812MW16F Active

Package:
SOT-143 4
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM812MW16F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

4.38

Voltage Reset 2 (V) (typ):

-

Country of Origin:

PHILIPPINES

Distributor availability ofSTM812MW16F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2994 1 Buy from Distributor
MOUSER WORLDWIDE 4279 1 Buy from Distributor

Distributor reported inventory date: 2022-08-10

Distributor Name

DIGIKEY

Stock

2994

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

4279

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-10

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(*) 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