The SGM858xQ is a windowed watchdog timer designed to monitor and reset the microcontroller unit (MCU). During power-up or under-voltage conditions, it generates a low-level reset signal to the MCU. In normal operation, the MCU must cyclically send trigger signals within a programmable time window (long/short window mode via MODE pin). The watchdog will issue a reset signal to the MCU under the occurrence of missing or faulty triggers of WDI. The SGM858AQ features a 5V power supply, and SGM858BQ features a 3.3V power supply.
The device is AEC-Q100 qualified (Automotive Electronics Council (AEC) standard Q100 Grade 1) and it is suitable for automotive applications.
The SGM858xQ is available in a Green SOIC-8 package.
- AEC-Q100 Qualified for Automotive Applications
Device Temperature Grade 1
TA = -40℃ to +125℃ - Functional Safety
- Available Documentation in the Design of Functional Safety Systems
- Windowed Watchdog Function
- Watchdog Disable Function
- Power-On Reset During Power-Up and Under-Voltage
- Programmable Short Window Mode or Long Window Mode
- Available in a Green SOIC-8 Package
Driver Monitoring
Automotive Telematics Control Unit
Digital Cockpit Processing Unit
On-Board & Wireless Charger (OBC)
ADAS Domain Controller
Microcontrollers and DSPs
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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM858AQS8G/TR | Active | SOIC-8 | 8 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | 1-24 units : $0.7/unit 25-99 units : $0.6/unit 100-249 units : $0.5/unit 250-499 units : $0.4/unit 500-999 units : $0.35/unit 1000-9999 units : $0.26/unit | 3K-9K : 14 days 10K-99K : 28 days 100K-999K : 70 days 1000K and above : 98 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
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