STM811RW16F

Name: STM811RW16F
Brand: STMicroelectronics NV
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

3V, 3.3V, and 5V compatibility

5,024 Effective Inventory

STM811RW16F

Effective Inventory5,024

3V, 3.3V, and 5V compatibility

Manufacturer Part # : STM811RW16F
Package/Case: SOT-1434
Brand: STMicroelectronics NV
Product Categories : Supervisors
Series : STM811

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STM811RW16F DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$0.334	$0.33
10	$0.328	$3.28
30	$0.325	$9.75
100	$0.321	$32.10

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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STM811RW16F Details

The STM811RW16F is a watchdog timer IC from STMicroelectronics, designed to monitor the operation of a system and initiate a reset in case of a fault or malfunction. This device provides reliable supervision and reset control, ensuring the proper functioning of critical applications. It is widely used in embedded systems, automotive electronics, and industrial control systems for added reliability and fault tolerance.

Pinout

1 (MR): Master Reset
2 (VDD): Power Supply Voltage
3 (GND): Ground
4 (WDI): Watchdog Input

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Watchdog Timer: Monitors system operation and triggers a reset if necessary.
Reset Output: Provides a reset signal to restart the system in case of failure.
Adjustable Timeout Period: Allows customization of the timeout duration for specific application requirements.
Low Power Consumption: Designed for power-efficient operation in various electronic systems.
Wide Operating Voltage Range: Supports a wide supply voltage range for versatility in different applications.

Application

Embedded Systems: Essential for monitoring and ensuring the reliability of embedded electronic devices.
Automotive Electronics: Used in automotive systems to enhance fault tolerance and system integrity.
Industrial Control: Trusted in industrial automation for supervising critical operations and maintaining stability.

Where to Use

The STM811RW16F is perfect for applications where continuous system monitoring and automatic reset functionality are required. It is particularly beneficial in embedded systems, automotive electronics, and industrial control applications to prevent system crashes and ensure uninterrupted operation.

How to Use

Integrate the STM811RW16F into your system by connecting the MR, VDD, GND, and WDI pins as per the datasheet guidelines. Configure the timeout period according to your application's needs. The device will monitor system activity and issue a reset signal if needed. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit for the STM811RW16F demonstrates how to include the watchdog timer in your system design. It showcases connections to power, ground, and the watchdog input, ensuring proper functionality and system reliability.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

MAX811: A similar watchdog timer IC with comparable features and performance specifications.
CAT811: An alternative device offering watchdog timer functionality for system supervision.

Complementary

The STM811RW16F can be complemented by the STM32 microcontroller series, providing a comprehensive solution for embedded system monitoring and control.

When selecting complementary components, ensure compatibility and seamless integration to optimize system performance.

Frequently Asked Questions

Q: What is the purpose of the watchdog timer in the STM811RW16F?

A: The watchdog timer in the STM811RW16F monitors system activity and initiates a reset if the system fails to respond within a set timeframe. This helps prevent system crashes and ensures continuous operation.

Q: Can the timeout period of the STM811RW16F be adjusted?

A: Yes, the timeout period of the STM811RW16F is adjustable, allowing customization to suit specific application requirements. Consult the datasheet for details on setting the timeout duration.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Operating Temp Min Celsius	-40.0	Operating Temp Max Celsius	85.0
ECCN US	EAR99	ECCN EU	NEC
Packing Type	Tape And Reel	RoHs compliant	Ecopack3
Grade	Industrial	Package Name	SOT-143 4

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification STM811RW16F PDF Download

FAQs

What is STM811RW16F?

The STM811RW16F is a voltage monitor and reset IC (integrated circuit) designed by STMicroelectronics. It is commonly used to monitor the power supply voltage of microcontrollers and digital systems, ensuring proper reset operation during power-up and power-down sequences.

How Does STM811RW16F Work?

The STM811RW16F works by continuously monitoring the system voltage and generating a reset signal to the microcontroller or other digital devices when the voltage falls below a predetermined threshold. This helps ensure reliable system start-up and operation by preventing the microcontroller from running with an unstable or insufficient power supply.

How Many Pins does STM811RW16F have and What are the Functions of the Pinout Configuration?

The STM811RW16F is housed in an SOT-23 package and has a 3-pin configuration, including:

Vdd: Power supply pin connected to the system voltage.
RESET: Open-drain reset output that goes low when the monitored voltage falls below the threshold.
Gnd: Ground pin for the IC.

What are the Pros and Cons of STM811RW16F?

Pros:

Automatic Reset: Provides automatic reset generation when the voltage falls below the specified level, enhancing system reliability.
Low Power Consumption: Operates with very low power, making it suitable for low-power applications.
Simple Integration: Requires minimal external components and is easy to integrate into existing designs.
Small Package: The SOT-23 package is compact, saving board space in space-constrained designs.

Cons:

Fixed Threshold: The voltage threshold for reset generation is fixed and may not be adjustable.
Compatibility: The device may not be suitable for applications requiring more complex voltage monitoring and reset features.

Are There Any Equivalents/Alternatives to STM811RW16F for Recommendation?

The MAX811 from Maxim Integrated is an equivalent voltage monitor and reset IC with similar functionality.
Alternatives to the STM811RW16F include the ADM803 from Analog Devices and the TC54 from Microchip Technology.