仕様
| 属性 | 値 |
| Package | Tape & Reel (TR) |
| ProductStatus | Obsolete |
| Type | Controller |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概要
Description
The STM802BDR is a low-power, high-reliability microprocessor supervisory circuit designed to monitor the supply voltage in microprocessor systems. It ensures proper system operation during power-up, power-down, and brownout conditions by sending a reset signal when the supply voltage drops below a preset threshold. This helps prevent erratic microprocessor behavior and data corruption.
Key features of the STM802BDR include a precision voltage reference, a reset output signal (active low), and a manual reset input for user-initiated resets. It typically operates with a supply voltage range from 1.2V to 5.5V, making it suitable for a wide range of applications. With its ultra-low supply current, it is ideal for battery-powered devices.
The STM802BDR comes in a compact SOT-23 package, facilitating space-saving designs in compact electronic devices. This device enhances system reliability by ensuring that microprocessors remain in a defined state during voltage fluctuations. It is commonly used in consumer electronics, industrial applications, and any systems requiring robust voltage supervision.
Key features of the STM802BDR include a precision voltage reference, a reset output signal (active low), and a manual reset input for user-initiated resets. It typically operates with a supply voltage range from 1.2V to 5.5V, making it suitable for a wide range of applications. With its ultra-low supply current, it is ideal for battery-powered devices.
The STM802BDR comes in a compact SOT-23 package, facilitating space-saving designs in compact electronic devices. This device enhances system reliability by ensuring that microprocessors remain in a defined state during voltage fluctuations. It is commonly used in consumer electronics, industrial applications, and any systems requiring robust voltage supervision.
Equivalent
The STM802BDR is a supervisory circuit, often used for monitoring power supply levels in microcontroller applications. Equivalent products may include:
1. Maxim Integrated DS1232 - MicroMonitor Chip
2. Texas Instruments TPS3823 - Voltage Supervisor with Active-High Reset
3. ON Semiconductor NCP300 - Voltage Detector Series
4. Microchip Technology MCP131 - Voltage Supervisor
These components provide similar functionality in terms of voltage monitoring and reset signal generation. Always verify the specific requirements and pin compatibility when selecting an equivalent.
1. Maxim Integrated DS1232 - MicroMonitor Chip
2. Texas Instruments TPS3823 - Voltage Supervisor with Active-High Reset
3. ON Semiconductor NCP300 - Voltage Detector Series
4. Microchip Technology MCP131 - Voltage Supervisor
These components provide similar functionality in terms of voltage monitoring and reset signal generation. Always verify the specific requirements and pin compatibility when selecting an equivalent.
Features
The STM802BDR is a microprocessor supervisory circuit designed to monitor the supply voltage in microprocessor systems. Key features include:
1. Voltage Monitoring: It monitors the microprocessor’s supply voltage and generates a reset signal if the voltage drops below a predetermined threshold, ensuring the microprocessor resets safely.
2. Reset Functionality: Provides a manual reset input for external reset generation and a reset output with a guaranteed minimum pulse width, ensuring reliable reset operations.
3. Low Power Consumption: Designed for minimal power usage, making it suitable for battery-operated applications.
4. Wide Supply Voltage Range: Compatible with a range of supply voltages, enhancing its versatility across various applications.
5. Precision: Offers precise voltage monitoring with tight voltage threshold accuracy.
6. Push-pull Reset Output: Provides a push-pull output for the reset signal, ensuring strong drive capability.
7. Operating Temperature Range: Functions efficiently over a broad temperature range, suitable for diverse environmental conditions.
These features make the STM802BDR ideal for applications requiring reliable microprocessor supervision and voltage monitoring.
1. Voltage Monitoring: It monitors the microprocessor’s supply voltage and generates a reset signal if the voltage drops below a predetermined threshold, ensuring the microprocessor resets safely.
2. Reset Functionality: Provides a manual reset input for external reset generation and a reset output with a guaranteed minimum pulse width, ensuring reliable reset operations.
3. Low Power Consumption: Designed for minimal power usage, making it suitable for battery-operated applications.
4. Wide Supply Voltage Range: Compatible with a range of supply voltages, enhancing its versatility across various applications.
5. Precision: Offers precise voltage monitoring with tight voltage threshold accuracy.
6. Push-pull Reset Output: Provides a push-pull output for the reset signal, ensuring strong drive capability.
7. Operating Temperature Range: Functions efficiently over a broad temperature range, suitable for diverse environmental conditions.
These features make the STM802BDR ideal for applications requiring reliable microprocessor supervision and voltage monitoring.
Pinout
The STM802BDR is a voltage detector IC developed by STMicroelectronics, primarily used for monitoring supply voltage levels in electronic systems to prevent malfunctioning due to low voltage conditions. It is part of the STM80x series.
Pin Count and Functions:
The STM802BDR comes in an 8-pin package. Below are the primary pin functions:
1. VCC: Supply voltage input pin.
2. GND: Ground pin for the IC.
3. RESET: Output pin that provides a reset signal when VCC falls below the reset threshold.
4. NP: No connect or not used.
5. VOUT: Output voltage pin that mirrors the VCC when above the threshold.
6. PFI: Power-fail input pin used for monitoring an additional voltage level.
7. PFO: Power-fail output pin that indicates a pre-defined voltage level drop.
8. MR: Manual reset input pin; pulling this pin low forces a reset.
This device is crucial for maintaining system stability by ensuring microcontrollers operate within appropriate voltage ranges.
Pin Count and Functions:
The STM802BDR comes in an 8-pin package. Below are the primary pin functions:
1. VCC: Supply voltage input pin.
2. GND: Ground pin for the IC.
3. RESET: Output pin that provides a reset signal when VCC falls below the reset threshold.
4. NP: No connect or not used.
5. VOUT: Output voltage pin that mirrors the VCC when above the threshold.
6. PFI: Power-fail input pin used for monitoring an additional voltage level.
7. PFO: Power-fail output pin that indicates a pre-defined voltage level drop.
8. MR: Manual reset input pin; pulling this pin low forces a reset.
This device is crucial for maintaining system stability by ensuring microcontrollers operate within appropriate voltage ranges.
Manufacturer
The STM802BDR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, and manufactures a wide range of semiconductor products. They serve a variety of sectors including industrial, automotive, personal electronics, and communications. STMicroelectronics is known for its innovation in semiconductor solutions, including microcontrollers, sensors, and power management devices.
Application
The STM802BDR is a microprocessor supervisory circuit designed for applications requiring precise monitoring and control of microprocessor activity. It is commonly used in embedded systems, consumer electronics, and industrial automation. Key application areas include:
1. Power Management: Ensures the microprocessor operates within safe voltage levels by providing reset signals during power-up, power-down, or brownout conditions.
2. System Reliability: Monitors microprocessor activity to prevent system hang-ups by generating reset signals during malfunctions.
3. Battery-Operated Devices: Extends battery life by managing low-power conditions.
4. Consumer Electronics: Utilized in devices like TVs and home appliances for reliable operation.
Overall, the STM802BDR improves system stability and robustness in various electronic applications.
1. Power Management: Ensures the microprocessor operates within safe voltage levels by providing reset signals during power-up, power-down, or brownout conditions.
2. System Reliability: Monitors microprocessor activity to prevent system hang-ups by generating reset signals during malfunctions.
3. Battery-Operated Devices: Extends battery life by managing low-power conditions.
4. Consumer Electronics: Utilized in devices like TVs and home appliances for reliable operation.
Overall, the STM802BDR improves system stability and robustness in various electronic applications.
Package
The STM802BDR is typically available in a SOT-23 package. This small outline transistor package is commonly used for surface mounting in electronic circuits, providing a compact design suitable for space-constrained applications.