Overview
The STM6823RWY6F is a 5-pin supervisor IC produced by STMicroelectronics, designed to provide microprocessor supervisory functions. This device is part of the STM6xxx series and is available in a standard 5-pin SOT23 package. It features a precision voltage reference and comparator that monitors the VCC input for out-of-tolerance conditions, ensuring reliable operation of microprocessors. The STM6823RWY6F also includes a watchdog timer and a push-button reset input, enhancing system reliability and user control.
Key Specifications
| Parameter | Description | Typical Value | Unit |
|---|---|---|---|
| VCC Monitoring | Precision monitoring of 5, 3.3, 3, or 2.5 V power supplies | - | V |
| RST Outputs | Active low (push-pull or open drain), Active high (push-pull) | - | - |
| Reset Pulse Width | 1.4 ms, 200 ms, 240 ms | - | ms |
| Watchdog Timeout Period | 1.6 s | - | s |
| Manual Reset Input | Push-button reset input (MR) | - | - |
| Supply Current | 3 μA (typ.) | 3 | μA |
| RST Assertion | Guaranteed down to VCC = 1.0 V | - | V |
| Operating Temperature | –40 to +85 °C (industrial grade) | - | °C |
| RoHS Compliance | Lead-free components compliant with RoHS directive | - | - |
| Package | SOT23-5L | - | - |
Key Features
- Precision VCC monitoring of 5, 3.3, 3, or 2.5 V power supplies
- RST outputs (active low, push-pull or open drain; active high, push-pull)
- Reset pulse width of 1.4 ms, 200 ms, and 240 ms (typ.)
- Watchdog timeout period of 1.6 s (typ.)
- Manual reset input (MR)
- Low supply current - 3 μA (typ.)
- Guaranteed RST assertion down to VCC = 1.0 V
- Operating temperature: –40 to +85 °C (industrial grade)
- RoHS compliance - Lead-free components are compliant with the RoHS directive
Applications
The STM6823RWY6F is suitable for a variety of applications where reliable microprocessor supervision is critical. These include:
- Embedded systems requiring precise voltage monitoring and reset functions
- Industrial control systems where robust and reliable operation is essential
- Automotive electronics that demand high reliability and low power consumption
- Consumer electronics needing watchdog timer and manual reset capabilities
- Medical devices requiring precise voltage monitoring and reset functions
Q & A
- What is the primary function of the STM6823RWY6F?
The primary function of the STM6823RWY6F is to provide microprocessor supervisory functions, including precision VCC monitoring, watchdog timer, and manual reset capabilities.
- What are the typical reset pulse widths for the STM6823RWY6F?
The typical reset pulse widths are 1.4 ms, 200 ms, and 240 ms.
- What is the watchdog timeout period for the STM6823RWY6F?
The watchdog timeout period is typically 1.6 seconds.
- What is the supply current of the STM6823RWY6F?
The supply current is typically 3 μA.
- What is the operating temperature range for the STM6823RWY6F?
The operating temperature range is –40 to +85 °C (industrial grade).
- Is the STM6823RWY6F RoHS compliant?
- What package type is the STM6823RWY6F available in?
The STM6823RWY6F is available in a standard 5-pin SOT23 package.
- What are the VCC monitoring voltages supported by the STM6823RWY6F?
The device supports precision VCC monitoring of 5, 3.3, 3, or 2.5 V power supplies.
- Does the STM6823RWY6F have a manual reset input?
- What is the RST assertion voltage for the STM6823RWY6F?
The RST assertion is guaranteed down to VCC = 1.0 V.
