S-80833CNNB-B8ST2G

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The S-80833CNNB-B8ST2G is a PMIC-Supervisors developed by Seiko Instruments to guarantee top-level overall system reliability for modern industrial, automotive, white goods, telecom, and other embedded applications, where a watchdog timer, voltage supervisor, and tamper detection is required.

The S-80833CNNB-B8ST2G with its various functions, provides a safety and reliable working environment for almost any system. It is the most efficient and cost-effective way to design systems which require extra layer of protection like during equipment operation errors, unforeseen software crashes, or low system voltage.

The primary functions of S-80833CNNB-B8ST2G are voltage supervisor, watchdog timer, and tamper detection.

Voltage supervisor

The S-80833CNNB-B8ST2G voltage supervisor feature helps to ensure that the system stays in normal operating conditions. It monitors the system\'s DC power supply line and triggers a reset whenever it detects a voltage fluctuation. The reset output is active during power-down and active-low during power up. It has a wide monitoring voltage range, adjustable reset threshold and reset width. It generates a reset signal whenever the input voltage goes below the reset threshold value. This reset signal is internally generated and transmitted to the reset output pin.

Watchdog timer

The watchdog timer in S-80833CNNB-B8ST2G monitors the system and continuously checks that the product is operating properly. If the system fails to perform the necessary task and causes a program anomaly, the system efficiently takes corrective action by resetting itself. This periodic reset output is externally configurable with a normal watchdog period range of 20 ms to 1.5 s. The watchdog timer can be used to monitor mechanical systems and eliminate the possibility of program errors.

Tamper detection

The S-80833CNNB-B8ST2G tamper detection feature helps to detect any unauthorized attempts to access or alter the application. It monitors the incoming tamper signals and generates an active-low tamper output signal whenever it detects a tamper event. This active low output signal is connected to an external tamper alarm device or LED alarm to indicate the tamper event.

Conclusion

In summary, the S-80833CNNB-B8ST2G is an ideal PMIC-Supervisor with unique features like voltage supervisor, watchdog timer, and tamper detection. It helps in safeguarding the system against abnormal conditions like voltage fluctuations, unexpected system faults, and unauthorized access. These features work together to ensure that the system operates within its desired parameters for a long time.

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