LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
ST STWD100YNYWY3F product image
  • STWD100YNYWY3F thumbnail 1
  • STWD100YNYWY3F thumbnail 2
  • STWD100YNYWY3F thumbnail 3
  • Pinout
  • Footprint
Images for reference only

ST STWD100YNYWY3FRoHS

Manufacturer
ST
MPN
STWD100YNYWY3F
LCSC Part #
C155551
Packaging
SOT-23-5
Customer #
Key Attributes
Watchdog timer circuit
Datasheetpdf iconST STWD100YNYWY3F
In-Stock: 2,889
2,889 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 0.7512$ 0.75
10+$ 0.6045$ 6.05
30+$ 0.5296$ 15.89
100+$ 0.4563$ 45.63
500+$ 0.4123$ 206.15
1,000+$ 0.3895$ 389.50
Standard Packaging3000/Full Reel
Better price for more quantity?
$

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Supervisors
ManufacturerST
PackagingSOT-23-5
Operating Temperature-40℃~+125℃@(TA)
output typeOpen-drain;Push-pull
Reset Timeout3.4ms
FunctionWatchdog timer
Reset Active LevelActive Low
standby current13uA
Voltage - Supply2.7V~5.5V
ChipTypeWatchdog Timer
Threshold Voltage-
Number of Voltages Monitored1
Report an ErrorShow similar products (0) >

Introduction

AI Translation

The STWD100 watchdog timer circuits are selfcontained devices which prevent system failures that are caused by certain types of hardware errors (such as, non-responding peripherals and bus contention) or software errors (such as a bad code jump and a code stuck in loop). The STWD100 watchdog timer has an input, WDI, and an output, WDO . 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. If the system fails, the watchdog timer is not reset, a system alert is generated and the watchdog output, WDO , is asserted. The STWD100 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.

Features

AI Translation
  • Current consumption 13 μA typ.
  • Available watchdog timeout periods are 3.4 ms, 6.3 ms, 102 ms, and 1.6 s
  • Chip enable input
  • Open drain or push-pull WDO output
  • Operating temperature range: -40 to 125 °C
  • Packages: SOT23-5 and SC70-5 (SOT323-5)
  • ESD performance HBM: 2000 V
  • CDM: 1000 V
  • Automotive qualified

Applications

AI Translation
  • Telecommunications
  • Alarm systems
  • Industrial equipment
  • Networking
  • Medical equipment
  • UPS (uninterruptible power supply)
  • Automotive