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STWD100NPWY3F from ST,ST Microelectronics

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STWD100NPWY3F

Manufacturer: ST

Watchdog

Partnumber Manufacturer Quantity Availability
STWD100NPWY3F ST 695 In Stock

Description and Introduction

Watchdog The STWD100NPWY3F is a watchdog timer manufactured by STMicroelectronics. Below are the key specifications, descriptions, and features:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Supply Voltage (VCC):** 1.0V to 5.5V  
- **Watchdog Timeout Period:** Programmable from 1.6ms to 102.4ms (adjustable via external capacitor)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  
- **Reset Output:** Active-low open-drain (RESET)  
- **Quiescent Current:** 1.5µA (typical)  

### **Description:**  
The STWD100NPWY3F is a low-power watchdog timer designed to monitor microcontroller activity. It triggers a system reset if the MCU fails to refresh the watchdog within the programmed timeout period.  

### **Features:**  
- **Wide Supply Voltage Range:** Supports operation from 1.0V to 5.5V  
- **Adjustable Watchdog Timeout:** Configurable via an external capacitor  
- **Low Power Consumption:** Ideal for battery-operated applications  
- **Open-Drain Reset Output:** Compatible with various logic levels  
- **Industrial Temperature Range:** Suitable for harsh environments  
- **Small Form Factor:** SOT-23-5 package for space-constrained designs  

This device is commonly used in embedded systems, industrial controls, and automotive applications to ensure system reliability.

Application Scenarios & Design Considerations

Watchdog

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