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参数资料
| 型号： | STWD100PWWY3F |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | PROGRAMMABLE TIMER, PDSO5 |
| 封装： | LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 21/25页 |
| 文件大小： | 222K |
| 代理商： | STWD100PWWY3F |
STWD100
Description
1
Description
The STWD100 watchdog timer circuits are self-contained devices which prevent system
failures that are 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 STWD100 watchdog timer has an input, WDI, and an output, WDO (see Figure 2). The
input is used to clear the internal watchdog timer periodically within the specified timeout
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 (see
The STWD100 circuit also has an enable pin, EN (see Figure 2), 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.
Figure 1.
SOT23-5 and SC70-5 (SOT323-5) package connections
1
VCC
GND
WDO
EN
AI12639b
2
3
5
4
WDI
Table 1.
SOT23-5 and SC70-5 (SOT323-5) pin description
Pin number
Name
Description
1WDO
Watchdog output
2
GND
Ground
3EN
Enable pin
4
WDI
Watchdog Input
5VCC
Supply voltage
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STWD100PXW83E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
| STWD100PXW83F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
| STWD100PXWY3E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
| STWD100PXWY3F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
| STWD100PYW83E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
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