The SGM819S is an independent watchdog timer circuit. It can be used to guard against system failures due to hardware types like peripherals errors and bus occupancy or software types like infinite code execution in a loop.
This device has a WDI input and an nWDO output. In normal conditions, the WDI is toggled within the preset timeout period called tWD in order to clear the watchdog timer. However, if an error event occurs and the watchdog timer is not reset within tWD, the nWDO is asserted to send out the alarm signal.
The SGM819S has an enable pin (nEN) to control the device to turn on/off the watchdog function. To turn on the watchdog function, just connect nEN pin which has a built-in pull-down resistor to GND or leave it floating.
The SGM819S is available in a Green SOT-23-5 package. It operates over the junction temperature range of -40℃ to +125℃.
- Current Consumption: 3.5μA (TYP)
- Six Selectable Watchdog Timeout Periods: 3.4ms, 6.8ms, 108.8ms, 1.7s, 7.0s and 27.9s
- Two Selectable Watchdog Active Time: 27.2ms and 217.6ms
- Watchdog Timer Accuracy: ±20%
- Active-Low Enable Input
- Open-Drain nWDO Output
- Available in a Green SOT-23-5 Package
Industrial Equipment
Telecommunications
Safety Applications
Networking
Medical Equipment
UPS System
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM819S-AXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-BAXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-BBXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-CAXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-CBXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-DAXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-DBXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-EAXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-EBXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-FAXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days | |
SGM819S-FBXN5G/TR | アクティブ | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | 閲覧 | 閲覧 | 1-24 units : $1.75/unit 25-99 units : $1.5/unit 100-249 units : $1.25/unit 250-499 units : $1/unit 500-999 units : $0.875/unit 1000-9999 units : $0.65/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 91 days |
* 再販価格は参考価格です。正式な見積もりについては、代理店にお問い合わせください。
** 提供されるリードタイムは参考情報であり、異なる状況に応じて変更される可能性があります。
