Overview
The STM6823TWY6F is a 5-pin supervisor IC produced by STMicroelectronics, designed to provide comprehensive microprocessor supervisory functions. This device is part of the STM6xxx series, which includes precision voltage monitoring, watchdog timer, and push-button reset capabilities. It is particularly useful in ensuring the reliable operation of microprocessors by monitoring the VCC input for out-of-tolerance conditions and asserting a reset signal when necessary.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT23-5L |
| Marketing Status | Active |
| Grade | Industrial |
| RoHS Compliance | Ecopack3 |
| Operating Temperature | –40 to +85 °C |
| VCC Monitoring | 5, 3.3, 3, or 2.5 V |
| RST Threshold (typ) | 3.08 V (for STM6823TWY6F) |
| RST Output Type | Active low, push-pull or open drain; Active high, push-pull |
| Reset Pulse Width | 1.4 ms, 200 ms, 240 ms (typ.) |
| Watchdog Timeout Period | 1.6 s (typ.) |
| Manual Reset Input | Yes (MR) |
| Supply Current | 3 μA (typ.) |
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
Applications
The STM6823TWY6F is suitable for a wide range of applications where reliable microprocessor operation is critical. These include industrial control systems, medical devices, automotive systems, and any other embedded systems that require precise voltage monitoring and reset capabilities.
Q & A
- What is the primary function of the STM6823TWY6F? The primary function is to provide microprocessor supervisory functions, including precision voltage monitoring and reset capabilities.
- What are the different voltage levels that the STM6823TWY6F can monitor? It can monitor 5, 3.3, 3, or 2.5 V power supplies.
- What types of RST outputs are available on the STM6823TWY6F? The device offers active low, push-pull or open drain, and active high, push-pull RST outputs.
- What is the typical watchdog timeout period for the STM6823TWY6F? The typical watchdog timeout period is 1.6 seconds.
- Does the STM6823TWY6F have a manual reset input? Yes, it has a manual reset input (MR).
- What is the typical supply current of the STM6823TWY6F? The typical supply current is 3 μA.
- Is the STM6823TWY6F RoHS compliant? Yes, it is RoHS compliant.
- What is the operating temperature range of the STM6823TWY6F? The operating temperature range is –40 to +85 °C.
- What package type is the STM6823TWY6F available in? It is available in a standard 5-pin SOT23 package.
- Can the STM6823TWY6F assert a reset down to a low VCC level? Yes, it can assert a reset down to VCC = 1.0 V.
