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

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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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STM812TW16F
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STM812SW16F
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STM812LW16F
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STM812RW16F
Available at distributors

Distributor availability of STM812RW16F

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
STM812MW16F
Available at distributors

Distributor availability of STM812MW16F

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

STM812TW16F Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

STM812TW16F

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

STM812SW16F Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

STM812SW16F

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

STM812LW16F Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

STM812LW16F

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

STM812RW16F Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

STM812RW16F

Operating Temperature (°C)

Min:

Max:

STM812MW16F Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

STM812MW16F

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

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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