Overview
The STM809TWX6F is a low-power supervisory device from STMicroelectronics, designed to monitor power supplies and ensure proper system operation. It is part of the STM809/810/811/812 series of microprocessor reset circuits. These devices assert a reset signal when the supply voltage drops below a preset threshold and maintain this signal until the voltage rises above the threshold for a minimum recovery time.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT23 |
| Operating Temperature | -40°C to 85°C |
| Supply Voltage Range | 1.2V to 5.5V |
| Reset Threshold Voltage | 3.15V (typical) |
| Reset Pulse Width | 140 ms (minimum) |
| Reset Delay Time | 210 ms |
| Supply Current | 6 µA (typical) |
| Output Configuration | Push-pull RST output |
Key Features
- Lead-free and RoHS compliant (Ecopack3)
- Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
- Low supply current of 6 µA (typical)
- Guaranteed RST/RST assertion down to VCC = 1.0 V
- Push-button reset input (MR) available on some models (STM811/812)
- Small SOT23 package
Applications
The STM809TWX6F is suitable for various applications, including communications equipment, computers, and peripherals, as well as industrial systems. Its low power consumption and precise voltage monitoring make it an ideal choice for ensuring reliable operation in a wide range of electronic devices.
Q & A
- What is the primary function of the STM809TWX6F?
The primary function is to monitor the power supply and assert a reset signal when the voltage drops below a preset threshold. - What is the operating temperature range of the STM809TWX6F?
The operating temperature range is -40°C to 85°C. - What is the typical reset pulse width of the STM809TWX6F?
The typical reset pulse width is 140 ms. - What is the supply voltage range for the STM809TWX6F?
The supply voltage range is 1.2V to 5.5V. - Is the STM809TWX6F RoHS compliant?
Yes, it is RoHS compliant (Ecopack3). - What is the typical supply current of the STM809TWX6F?
The typical supply current is 6 µA. - What type of output configuration does the STM809TWX6F have?
The output configuration is push-pull RST output. - What is the reset delay time of the STM809TWX6F?
The reset delay time is 210 ms. - Is the STM809TWX6F available in different packages?
No, it is available in the SOT23 package. - What are some common applications for the STM809TWX6F?
Common applications include communications equipment, computers, peripherals, and industrial systems.
