Features
- Pin-selectable watchdog timeout periods
- Real-time in-system configuration
- Watchdog timer disable feature
- Open-drain watchdog output
- Operating voltage range: +2.5V to +5.5V
- Quiescent current: 1μA
- Maximum supply current: 10μA
- Configurable without external components
- Low power consumption
- Pb-free/RoHS-compliant
- Halogen-free
- 14-pin STQFN package: 2.0mm x 2.2mm x 0.55mm, 0.4mm pitch
SLG7WD47674 Functional Diagram
Description
The SLG7WD47674 is a pin-selectable watchdog timer designed to monitor microprocessor activity and detect abnormal system behavior by requiring routine toggling of the watchdog input (WDI) within a specified timeout period. If the microprocessor fails to provide a valid WDI transition, the IC generates a watchdog output (WDO) signal to reset the system or trigger an interrupt, ensuring reliability. This watchdog timer offers flexible timing options, including startup delay, customizable timeout periods, and open-drain output timing (200ms), making it adaptable to various system timing requirements.
For custom configurations, visit the GreenPAK Programmable Mixed-Signal Products page.
Parameters
| Attributes | Value |
|---|---|
| Input Voltage (Min) (V) | 2.5 |
| Input Voltage (Max) (V) | 5.5 |
| Adjustable POR Timeout | No |
| Adjustable Vtrip | No |
| Fixed Vtrip | No |
| Interface | I2C |
| Manual Reset | Yes |
| Monitor Voltage (Max) (V) | 5.5 |
| WDT | No |
| TwinPin™ MR#/RST# | No |
| Reset Output Type | Active Low |
| Advanced Features | Ultra Low Iq |
| Function | Watchdog Timer |
| Target applications | Industrial Controllers, Networking, Embedded Control Systems, Data Communications Equipment, Handheld/Portable Electronics, Personal Computers, Servers |
| Device Functions | Monitor microprocessor activities, Identify abnormal behavior |
| Qualification Level | Standard |
Package Options
| Pkg. Type |
|---|
| QFN |
Applications
- Microcontroller (μC) and microprocessor (μP) monitoring
- Industrial controllers
- Telecommunications
- Networking
- Embedded control systems
- Data communications equipment
- Handheld and portable electronics
- Personal computers and servers
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