Overview
The STM6322TWY6F is a 5-pin supervisor IC produced by STMicroelectronics, designed to provide microprocessor supervisory functions. This device is part of the STM632x series and is housed in a standard SOT23-5 package. It features precision voltage monitoring, a watchdog timer, and a push-button reset input, making it suitable for a variety of applications requiring reliable system supervision.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| VCC Supply Voltage | Operating voltage range | 1.0 to 5.5 | V |
| Reset Threshold | Voltage threshold for reset | 3.08 V | V |
| Reset Timeout | Minimum reset pulse width | 140 ms | ms |
| Watchdog Timeout | Typical watchdog timeout period | 1.6 s | s |
| Supply Current | Typical supply current (MR and WDI unconnected) | 3 to 12 µA | µA |
| Operating Temperature | Industrial operating temperature range | –40 to +85 °C | °C |
| Reset Output | Type of reset output | Active low (open drain and push-pull) | |
| Package | Package type | SOT23-5 | |
| RoHS Compliance | Compliance with RoHS directive | Lead-free and RoHS compliant |
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)
- RST outputs (active high, push-pull)
- Manual reset input (MR) with internal 52 kΩ pull-up
- Low supply current - 3 µA (typ.)
- Guaranteed RST assertion down to VCC = 1.0 V
- Watchdog timer (except for STM6322/6825)
- Operating temperature range: –40 to +85 °C (industrial grade)
- RoHS compliance with lead-free components
Applications
The STM6322TWY6F is suitable for various applications requiring reliable system supervision, including:
- Microprocessor and microcontroller systems
- Embedded systems
- Industrial control systems
- Automotive electronics
- Consumer electronics
- Medical devices
Q & A
- What is the primary function of the STM6322TWY6F?
The primary function of the STM6322TWY6F is to provide microprocessor supervisory functions, including precision voltage monitoring, watchdog timer, and push-button reset.
- What is the reset threshold voltage for the STM6322TWY6F?
The reset threshold voltage for the STM6322TWY6F is 3.08 V.
- What types of reset outputs does the STM6322TWY6F have?
The STM6322TWY6F has active low reset outputs (push-pull and open drain) and active high reset outputs.
- What is the typical supply current of the STM6322TWY6F?
The typical supply current of the STM6322TWY6F is 3 to 12 µA.
- What is the operating temperature range of the STM6322TWY6F?
The operating temperature range of the STM6322TWY6F is –40 to +85 °C.
- Is the STM6322TWY6F RoHS compliant?
Yes, the STM6322TWY6F is lead-free and RoHS compliant.
- What package type is the STM6322TWY6F available in?
The STM6322TWY6F is available in a SOT23-5 package.
- How does the watchdog timer function in the STM6322TWY6F?
The watchdog timer in the STM6322TWY6F (except for STM6322/6825) triggers a reset if the watchdog input is not toggled within the specified timeout period.
- What is the purpose of the manual reset input (MR) in the STM6322TWY6F?
The manual reset input (MR) allows for a manual reset of the system by asserting the reset output when MR is taken low.
- How does the reset output behave when VCC is below the reset threshold?
The reset output remains low whenever VCC is below the reset threshold and stays low for the reset timeout period after VCC rises above the threshold.
