Overview
The STM708M6F is a 5 V supervisor IC produced by STMicroelectronics, designed to provide microprocessor supervisory functions. It features a precision voltage reference and comparator that monitors the VCC input for out-of-tolerance conditions. When an invalid VCC condition occurs, the reset output (RST) is forced low. This device is part of the STM705/706/707/708/813L family and is available in standard 8-pin SOIC and TSSOP packages.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 5 V |
| RST Threshold | 4.25 V ≤ VRST ≤ 4.50 V |
| Reset Output | Active-low RST, Active-high RST |
| Watchdog Timer | Not available for STM707/708 |
| Manual Reset Input | Active-low MR |
| Power-fail Comparator | PFI/PFO |
| Supply Current | 40 μA (typ) |
| Operating Temperature | –40 °C to 85 °C (industrial grade) |
| Package | 8-pin SOIC, 8-pin TSSOP |
| RoHS Compliance | Lead-free components, Ecopack3 |
Key Features
- Precision VCC monitor
- RST and RST outputs
- 200 ms (typ) reset time-out period (trec)
- Manual reset input (MR)
- Power-fail comparator (PFI/PFO)
- Low supply current - 40 μA (typ)
- Guaranteed RST assertion down to VCC = 1.0 V
- Operating temperature: –40 °C to 85 °C (industrial grade)
- RoHS compliance with lead-free components
Applications
The STM708M6F is suitable for various applications requiring microprocessor supervision, including industrial control systems, automotive electronics, and other embedded systems where reliable power monitoring and reset functions are crucial.
Q & A
- What is the primary function of the STM708M6F?
The primary function is to provide microprocessor supervisory functions, including precision VCC monitoring and reset outputs. - What are the typical reset thresholds for the STM708M6F?
The reset thresholds are between 4.25 V and 4.50 V. - Does the STM708M6F have a watchdog timer?
No, the STM708 does not have a watchdog timer. - What is the manual reset input (MR) used for?
The MR input is used to assert the reset output when it is taken low. - What is the power-fail comparator used for?
The power-fail comparator provides an early warning of impending power failure. - What is the typical supply current of the STM708M6F?
The typical supply current is 40 μA. - What are the operating temperature ranges for the STM708M6F?
The operating temperature range is –40 °C to 85 °C for industrial grade. - Is the STM708M6F RoHS compliant?
Yes, it is RoHS compliant with lead-free components. - In what packages is the STM708M6F available?
It is available in 8-pin SOIC and 8-pin TSSOP packages. - What is the reset time-out period (trec) for the STM708M6F?
The reset time-out period is typically 200 ms.
