STM6821MWY6F
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STMicroelectronics STM6821MWY6F

Manufacturer No:
STM6821MWY6F
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC SUPERVISOR 1 CHANNEL SOT23-5
Delivery:
Payment:
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Product Introduction

Overview

The STM6821MWY6F is a 5-pin supervisor IC produced by STMicroelectronics, designed to provide comprehensive microprocessor supervisory functions. This device integrates a precision voltage reference and comparator to monitor the VCC input for out-of-tolerance conditions, ensuring reliable operation of the microprocessor. It also features a watchdog timer and a push-button reset input, making it a versatile component for various embedded systems.

Key Specifications

ParameterValue
PackageSOT23-5L
Operating Temperature–40 to +85 °C (industrial grade)
VCC Monitoring5, 3.3, 3, or 2.5 V power supplies
RST OutputsActive low, push-pull or open drain; Active high, push-pull
Reset Pulse Width1.4 ms, 200 ms, and 240 ms (typ.)
Watchdog Timeout Period1.6 s (typ.)
Manual Reset InputPush-button (MR)
Supply Current3 μA (typ.)
RST Assertion Down to VCC1.0 V
RoHS ComplianceEcopack3

Key Features

  • Precision VCC monitoring of 5, 3.3, 3, or 2.5 V power supplies
  • RST outputs (active low, push-pull or open drain; active high, push-pull)
  • Reset pulse width of 1.4 ms, 200 ms, and 240 ms (typ.)
  • Watchdog timeout period of 1.6 s (typ.)
  • Manual reset input (MR)
  • Low supply current - 3 μA (typ.)
  • Guaranteed RST assertion down to VCC = 1.0 V
  • Operating temperature: –40 to +85 °C (industrial grade)
  • RoHS compliance - Lead-free components compliant with the RoHS directive

Applications

The STM6821MWY6F is suitable for a wide range of applications, including embedded systems, microcontroller-based designs, and any system requiring reliable power-on reset and watchdog functionality. It is particularly useful in industrial, automotive, and consumer electronics where robust supervisory functions are essential.

Q & A

  1. What is the primary function of the STM6821MWY6F?
    The primary function of the STM6821MWY6F is to provide microprocessor supervisory functions, including precision VCC monitoring, watchdog timer, and push-button reset.
  2. What are the available VCC monitoring voltages for the STM6821MWY6F?
    The STM6821MWY6F can monitor VCC inputs of 5, 3.3, 3, or 2.5 V.
  3. What is the typical watchdog timeout period of the STM6821MWY6F?
    The typical watchdog timeout period is 1.6 seconds.
  4. What is the supply current of the STM6821MWY6F?
    The supply current is typically 3 μA.
  5. Is the STM6821MWY6F RoHS compliant?
    Yes, the STM6821MWY6F is RoHS compliant with lead-free components.
  6. What is the operating temperature range of the STM6821MWY6F?
    The operating temperature range is –40 to +85 °C (industrial grade).
  7. What types of RST outputs does the STM6821MWY6F offer?
    The STM6821MWY6F offers RST outputs that are active low (push-pull or open drain) and active high (push-pull).
  8. Does the STM6821MWY6F have a manual reset input?
    Yes, the STM6821MWY6F has a manual reset input (MR) via a push-button.
  9. What is the package type of the STM6821MWY6F?
    The package type is SOT23-5L.
  10. What are some common applications for the STM6821MWY6F?
    Common applications include embedded systems, microcontroller-based designs, industrial, automotive, and consumer electronics.

Product Attributes

Type:Simple Reset/Power-On Reset
Number of Voltages Monitored:1
Voltage - Threshold:4.39V
Output:Push-Pull, Totem Pole
Reset:Active High
Reset Timeout:140ms Minimum
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:SC-74A, SOT-753
Supplier Device Package:SOT-23-5
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Similar Products

Part Number STM6821MWY6F STM6823MWY6F STM6822MWY6F STM6825MWY6F STM6821SWY6F STM6824MWY6F STM6821TWY6F STM6821RWY6F STM6821LWY6F
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active Active Active Active Active Active
Type Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset
Number of Voltages Monitored 1 1 1 1 1 1 1 1 1
Voltage - Threshold 4.39V 4.39V 4.39V 4.39V 2.93V 4.39V 3.08V 2.63V 4.63V
Output Push-Pull, Totem Pole Push-Pull, Totem Pole Open Drain or Open Collector Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole
Reset Active High Active Low Active Low Active High/Active Low Active High Active High/Active Low Active High Active High Active High
Reset Timeout 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753
Supplier Device Package SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5

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