Overview
The STWD100PYW83F is a watchdog timer circuit produced by STMicroelectronics. This component is designed to prevent system failures caused by hardware errors, such as non-responding peripherals and bus contention, or software errors, such as bad code jumps and code loops. It acts as a supervisory circuit to ensure system reliability and stability.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOT323-5L |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Typical Operating Supply Voltage | 5 V |
| Maximum Power Dissipation | 320 mW |
| Current Consumption | 13 µA (typical) |
| Watchdog Timeout Periods | 3.4 ms, 6.3 ms, 102 ms, and 1.6 s |
| Output Type | Open Drain/Push-Pull |
| ESD Performance | HBM: 2000 V, RCDM: 1000 V |
| Packing Type | Tape and Reel |
| RoHS Compliance | Ecopack3 |
Key Features
- Self-contained watchdog timer circuit to prevent system failures due to hardware or software errors.
- Input (WDI) to clear the internal watchdog timer periodically within the specified timeout period.
- Output (WDO) to generate a system alert if the watchdog timer is not reset.
- Enable pin (EN) to enable or disable the watchdog functionality.
- Available in SOT23-5 and SC70-5 (SOT323-5) packages.
- Low current consumption of 13 µA (typical).
- Operating temperature range of -40°C to 125°C.
- ESD performance: HBM 2000 V, RCDM 1000 V.
Applications
- Communications equipment
- Computers and peripherals
- Industrial applications
- Personal electronics
Q & A
- What is the primary function of the STWD100PYW83F?
The primary function of the STWD100PYW83F is to act as a watchdog timer circuit to prevent system failures caused by hardware or software errors.
- What are the available watchdog timeout periods for the STWD100PYW83F?
The available watchdog timeout periods are 3.4 ms, 6.3 ms, 102 ms, and 1.6 s.
- What is the typical operating supply voltage for the STWD100PYW83F?
The typical operating supply voltage is 5 V, with a range of 2.7 V to 5.5 V.
- What is the maximum power dissipation of the STWD100PYW83F?
The maximum power dissipation is 320 mW.
- What is the current consumption of the STWD100PYW83F?
The current consumption is 13 µA (typical).
- What are the ESD performance specifications of the STWD100PYW83F?
The ESD performance specifications are HBM 2000 V and RCDM 1000 V.
- In what package types is the STWD100PYW83F available?
The STWD100PYW83F is available in SOT23-5 and SC70-5 (SOT323-5) packages.
- What is the operating temperature range of the STWD100PYW83F?
The operating temperature range is -40°C to 125°C.
- Is the STWD100PYW83F RoHS compliant?
Yes, the STWD100PYW83F is RoHS compliant with an Ecopack3 rating.
- How is the STWD100PYW83F packaged for shipping?
The STWD100PYW83F is shipped in tape and reel packaging.
