Overview
The STM6822RWY6F is a 5-pin supervisor IC produced by STMicroelectronics, designed to provide comprehensive microprocessor supervisory functions. This device features a precision voltage reference and comparator to monitor the VCC input for out-of-tolerance conditions, ensuring reliable operation of the microprocessor. It also includes a watchdog timer and a push-button reset input, enhancing system reliability and user control.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23-5 |
| VCC Monitoring | 2.63 V (typical) |
| RST Output | Active Low, Open Drain or Open Collector |
| Reset Pulse Width | 1.4 ms, 200 ms, 240 ms (typical) |
| Watchdog Timeout Period | 1.6 s (typical) |
| Manual Reset Input | Yes (MR) |
| Supply Current | 3 μA (typical) |
| Operating Temperature | –40 to +85 °C (industrial grade) |
| RoHS Compliance | Ecopack3 |
Key Features
- Precision VCC monitoring of 2.63 V power supplies
- RST outputs (active low, push-pull or open drain)
- Watchdog timer with a typical timeout period of 1.6 s
- Manual reset input (MR)
- Low supply current of 3 μA (typical)
- Guaranteed RST assertion down to VCC = 1.0 V
- Operating temperature range: –40 to +85 °C (industrial grade)
- RoHS compliance with Ecopack3
Applications
The STM6822RWY6F is suitable for various applications, including:
- Industrial systems requiring robust supervisory functions
- Personal electronics where reliable power monitoring is crucial
- Embedded systems that need watchdog timer and manual reset capabilities
Q & A
- What is the primary function of the STM6822RWY6F?
The primary function is to provide microprocessor supervisory functions, including voltage monitoring, watchdog timer, and manual reset. - What is the typical reset pulse width of the STM6822RWY6F?
The typical reset pulse widths are 1.4 ms, 200 ms, and 240 ms. - What is the watchdog timeout period of the STM6822RWY6F?
The watchdog timeout period is typically 1.6 seconds. - What is the supply current of the STM6822RWY6F?
The supply current is typically 3 μA. - What is the operating temperature range of the STM6822RWY6F?
The operating temperature range is –40 to +85 °C (industrial grade). - Is the STM6822RWY6F RoHS compliant?
Yes, it is RoHS compliant with Ecopack3. - What package type does the STM6822RWY6F come in?
The STM6822RWY6F comes in a SOT-23-5 package. - What is the RST threshold voltage for the STM6822RWY6F?
The RST threshold voltage is typically 2.63 V. - Does the STM6822RWY6F have a manual reset input?
Yes, it has a manual reset input (MR). - What are some common applications for the STM6822RWY6F?
Common applications include industrial systems, personal electronics, and embedded systems.
