STMicroelectronics 5 Pin Watchdog Timer, SOT-23
- RS Stock No.:
- 6867509
- Mfr. Prt No.:
- STWD100NYWY3F
- Brand:
- STMicroelectronics
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 6867509 |
| Product description | STMicroelectronics 5 Pin Watchdog Timer, SOT-23 |
| Manufacturer / Brand | STMicroelectronics |
| Manufacturer part number | STWD100NYWY3F |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 6867509 |
| Product description | STMicroelectronics 5 Pin Watchdog Timer, SOT-23 |
| Manufacturer / Brand | STMicroelectronics |
| Manufacturer part number | STWD100NYWY3F |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Nov 3, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
The Watchdog Timer integrated circuit is a self-contained device for preventing system failures. Certain types of hardware or software errors could cause the electronics system to fail. The watchdog timer has an input that is used to clear the watchdog timer periodically within a specified timeout period. While the system is operating correctly, the watchdog output is not asserted. If the watchdog timer is not cleared, the watchdog output generates a processor interrupt or reset.
Watchdog Timers, STMicroelectronics
Specifications
| Attribute | Value |
| Brand | STMicroelectronics |
| Minimum Operating Temperature | -40 °C |
| Mounting Type | Surface Mount |
| Package Type | SOT-23 |
| Maximum Operating Temperature | +125 °C |
| Length | 2.9 mm |
| Height | 1.05 mm |
| Width | 1.6 mm |
| Dimensions | 2.9 x 1.6 x 1.05 mm |
| Pin Count | 5 |
| Timer Type | Watchdog |
| Number of Internal Timers | 1 |
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