(Hong Kong)
Product Summary
The STWD100NYWY3F is a watchdog timer circuit. It prevents system failures that is caused by certain types of hardware errors (non-responding peripherals, bus contention, etc.) or software errors (bad code jump, code stuck in loop, etc.). The input is used to clear the internal watchdog timer periodically within the specified timeout period, twd. While the system is operating correctly, it periodically toggles the watchdog input, WDI. The STWD100NYWY3F circuit also has an enable pin, EN, which can enable or disable the watchdog functionality. The EN pin is connected to the internal pull-down resistor. The device is enabled if the EN pin is left floating.
Parametrics
STWD100NYWY3F absolute maximum ratings: (1)TSTG, Storage temperature (VCC off): –55 to 150°C; (2)TSLD, Lead solder temperature for 10 seconds: 260°C; (3)VIO, Input or output voltage: –0.3 to VCC +0.3V; (4)VCC, Supply voltage: –0.3 to 7.0V; (5)IO, Output current: 20mA; (6)PD, Power dissipation: 320mW.
Features
STWD100NYWY3F features: (1)Current consumption 13 μA typ; (2)Available watchdog timeout periods are 3.4 ms, 6.3 ms, 102 ms and 1.6 s; (3)Chip enable input; (4)Open drain or push-pull WDO output; (5)Operating temperature range: –40 to +125 °C; (6)Package SOT23-5, SC70-5 (SOT323-5); (7)ESD performance: HBM: 2000 V; RCDM: 1000 V.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 STWD100NYWY3F |
STMicroelectronics |
Timers & Support Products Watchdog timer Supervisor Circuit |
Data Sheet |
|
|
||||||||||||
| Image | Part No | Mfg | Description | |
Pricing (USD) |
Quantity | ||||||||||||
|
STWD100NPWY3F |
STMicroelectronics |
Timers & Support Products WATCHDOG TIMER CIRCUIT |
Data Sheet |
|
|
||||||||||||
|
STWD100NYWY3F |
STMicroelectronics |
Timers & Support Products Watchdog timer Supervisor Circuit |
Data Sheet |
|
|
||||||||||||
