STM802SM6F Integrated Circuits (ICs)

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The STM802SM6F is a Serial Peripheral Interface (SPI) compatible CMOS Supervisory Circuit. It offers reliable power-on reset generation with additional functions such as under-voltage detection, watchdog timer, manual reset, low power reset and manual power-on control. This device can be used in many different applications such as micro-controller power management, mobile device battery monitoring, watchdog timer circuit, power-supply tracking and other micro-controller systems. Additionally, this device has several advantages: low quiescent current, small form factor, low external component count and low voltage operation.

The STM802SM6F Power-On Reset (POR) requires an external capacitor for the reset delay control. This capacitor must be connected between VS and the RESET pin. The STM802SM6F POR monitors the supplied voltage on the VDD pin and sends a reset signal to the GND pin if the voltage drops below the specified threshold. This reset signal will remain active until the VDD voltage exceeds the reset threshold voltage. In addition to this, the STM802SM6F also offers a manual reset function, which is triggered by the MR pin.

The STM802SM6F also features an autonomous power-on control circuit that allows the user to start and stop the device with a logic signal. This circuit works by disabling the reset pulse if the MS pin is driven to a high level. The MS pin must be held at a high level to maintain normal operation. The additional feature offered by this circuit is that it also prevents the reset signal from being triggered due to a low voltage condition.

The STM802SM6F also contains an Under-Voltage Detection (UVD) circuit which indicates when the supplied voltage drops below a predetermined threshold. This circuit consists of a comparator which compares the VDD voltage with the UVD threshold (VTH) voltage. If the VDD voltage is less than the UVD threshold voltage, then the UV pin is driven low. This feature can be used to protect sensitive micro-controller systems from being damaged by operating at voltages that are too low.

The STM802SM6F also includes a watchdog timer circuit which can be used to monitor the status of a system and detect when an error has occurred. This circuit monitors a logic signal connected to the WD pin and if it is not active, then the RD pin will be driven low after the watchdog timer period has expired.

The STM802SM6F also contains a low-power reset circuit which can detect a low battery condition by monitoring the VDD voltage with the LPR threshold voltage. If the VDD voltage drops below the threshold voltage, then the LR pin will be driven low. This feature can be used to reset the system when the battery voltage becomes too low.

The STM802SM6F is a highly versatile Supervisory circuit which can be used for a wide range of applications. It is designed for use in micro-controller power management, mobile device battery monitoring, watchdog timer circuit and power-supply tracking. Additionally, its low quiescent current, small form factor, low external component count and low voltage operation make the STM802SM6F an ideal choice for designers who need reliable performance from a Supervisory circuit.

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