Overview
The STM6315RAW13F Microprocessor Reset Circuit, produced by STMicroelectronics, is a low-power supervisory device designed to monitor power supplies and ensure reliable operation of microprocessors. It asserts a reset signal whenever the VCC supply voltage drops below a preset threshold and keeps it asserted until VCC has risen above the threshold for a minimum period of time (trec). The device also includes a manual reset input (MR) for additional control. The STM6315RAW13F is available in the SOT143-4 package and is suitable for a wide range of applications requiring power supply monitoring and reset functionality.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC Operating Voltage | Supply Voltage Range | 1.0 | - | 5.5 | V |
| ICC Supply Current | At VCC = 5.5V, no load, TA = -40 to +85°C | 2.0 | 12 | 15 | µA |
| ICC Supply Current | At VCC = 3.6V, no load, TA = -40 to +125°C | 1.5 | 10 | 12 | µA |
| VOL RST Output Voltage | At VCC > 4.25V, ISINK = 3.2mA | 0.4 | - | - | V |
| VOL RST Output Voltage | At VCC > 2.5V, ISINK = 1.2mA | 0.3 | - | - | V |
| VOL RST Output Voltage | At VCC > 1.0V, ISINK = 80µA | 0.3 | - | - | V |
| Reset Thresholds | Factory-trimmed values | 2.63V, 2.93V, 3.08V, 4.38V, 4.63V | - | - | V |
| Operating Temperature | Ambient Operating Temperature Range | -40 | - | 125 | °C |
| Package | Package Type | - | - | - | SOT143-4 |
Key Features
- Low supply current of 1.5µA (typical)
- ±1.8% reset threshold accuracy at 25°C
- Guaranteed RST assertion down to VCC = 1.0V
- Open drain RST output can exceed VCC but must be less than 6V
- Power supply transient immunity
- Manual reset input (MR) with internal pull-up resistor (63kΩ typical)
- Operating temperature range: -40 to +125°C
- Available in SOT143-4 package
Applications
The STM6315RAW13F is suitable for various applications that require reliable power supply monitoring and reset functionality, including:
- Microprocessor and microcontroller systems
- Embedded systems
- Industrial control systems
- Automotive electronics
- Consumer electronics requiring low power consumption and robust reset functionality
Q & A
- What is the primary function of the STM6315RAW13F?
The primary function is to assert a reset signal whenever the VCC supply voltage drops below a preset threshold and to keep it asserted until VCC has risen above the threshold for a minimum period of time (trec). - What are the available reset thresholds for the STM6315RAW13F?
The device comes with standard factory-trimmed reset thresholds of 2.63V, 2.93V, 3.08V, 4.38V, and 4.63V. - What is the typical supply current of the STM6315RAW13F?
The typical supply current is 1.5µA. - What is the operating temperature range of the STM6315RAW13F?
The operating temperature range is -40 to +125°C. - Can the RST output be pulled up to a voltage higher than VCC?
Yes, the open drain RST output can be pulled up to a voltage higher than VCC but must be less than 6V. - Does the STM6315RAW13F have a manual reset input?
Yes, it includes a manual reset input (MR) with an internal pull-up resistor. - What package type is the STM6315RAW13F available in?
The device is available in the SOT143-4 package. - How does the STM6315RAW13F handle power supply transients?
The device has power supply transient immunity and can handle negative-going VCC transients without generating a reset pulse under certain conditions. - Is the STM6315RAW13F RoHS compliant?
Yes, the STM6315RAW13F is RoHS compliant with an Ecopack3 grade. - What is the recommended pull-up resistor value for the RST output?
A 10k pull-up resistor is sufficient in most applications.
