規格
| 屬性 | 價值 |
| Package / Case | Tube |
| Series | MicroMonitor™ |
| Part Status | Obsolete |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 2.55V, 2.88V |
| Output | Push-Pull, Push-Pull |
| Reset | Active High/Active Low |
| Reset Timeout | 250ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The DS1832S is a supervisory circuit designed to monitor microprocessor activity and ensure reliable operation. Its primary function is to safeguard microprocessor-based systems by providing power-on reset, watchdog timer, and external reset input. The chip is often used in applications where maintaining consistent operation is crucial, such as embedded systems and consumer electronics.
Key features of the DS1832S include:
1. Power-On Reset: Ensures that the microprocessor resets properly during power-up, providing a stable initialization state.
2. Watchdog Timer: Monitors microprocessor activity, triggering a reset if the processor fails to operate correctly within a predetermined time. This prevents system lock-ups or crashes.
3. Manual Reset Input: Allows external control over the reset process, enabling manual intervention when necessary.
4. Voltage Monitoring: It typically monitors the supply voltage to detect undervoltage conditions that could undermine system stability.
5. Compact Package: The SSOP (Shrink Small Outline Package) design makes it suitable for space-constrained applications.
Overall, the DS1832S enhances the robustness and reliability of microprocessor systems by providing essential monitoring and control features.
Key features of the DS1832S include:
1. Power-On Reset: Ensures that the microprocessor resets properly during power-up, providing a stable initialization state.
2. Watchdog Timer: Monitors microprocessor activity, triggering a reset if the processor fails to operate correctly within a predetermined time. This prevents system lock-ups or crashes.
3. Manual Reset Input: Allows external control over the reset process, enabling manual intervention when necessary.
4. Voltage Monitoring: It typically monitors the supply voltage to detect undervoltage conditions that could undermine system stability.
5. Compact Package: The SSOP (Shrink Small Outline Package) design makes it suitable for space-constrained applications.
Overall, the DS1832S enhances the robustness and reliability of microprocessor systems by providing essential monitoring and control features.
Equivalent
The DS1832S is a microprocessor supervisory chip with functions like power-on reset, watchdog timer, and manual reset. Equivalent products include:
1. MAX1232 by Maxim Integrated – Offers similar features like voltage monitoring and watchdog timer.
2. MCP1316 by Microchip – Includes voltage monitoring and reset functions.
3. LM1232 by Texas Instruments – Provides comparable features with reset and watchdog timer functions.
These alternatives may vary slightly in specifications, so reviewing datasheets is recommended for compatibility.
1. MAX1232 by Maxim Integrated – Offers similar features like voltage monitoring and watchdog timer.
2. MCP1316 by Microchip – Includes voltage monitoring and reset functions.
3. LM1232 by Texas Instruments – Provides comparable features with reset and watchdog timer functions.
These alternatives may vary slightly in specifications, so reviewing datasheets is recommended for compatibility.
Features
The DS1832S is a microprocessor supervisory circuit, known for providing several critical functions to enhance system reliability. Key features include:
1. Voltage Monitoring and Reset: Monitors the power supply voltage and generates a reset signal when the voltage falls below a preset threshold, ensuring proper microprocessor reset during power-up, power-down, and brownout conditions.
2. Watchdog Timer: Helps prevent system lockup by providing a timeout period that resets the microprocessor if not regularly serviced, ensuring ongoing proper operation.
3. Manual Reset Capability: Offers a manual reset input pin, allowing external push-button reset functionality.
4. Low-Power Consumption: Designed to consume minimal power, making it suitable for battery-operated applications.
5. Precision Voltage Reference: Provides a highly accurate voltage reference to ensure precise voltage monitoring.
6. Compact Packaging: Available in a small form-factor package, ideal for space-constrained applications.
These features make the DS1832S suitable for applications requiring reliable power monitoring and resetting capabilities, such as embedded systems and portable electronics.
1. Voltage Monitoring and Reset: Monitors the power supply voltage and generates a reset signal when the voltage falls below a preset threshold, ensuring proper microprocessor reset during power-up, power-down, and brownout conditions.
2. Watchdog Timer: Helps prevent system lockup by providing a timeout period that resets the microprocessor if not regularly serviced, ensuring ongoing proper operation.
3. Manual Reset Capability: Offers a manual reset input pin, allowing external push-button reset functionality.
4. Low-Power Consumption: Designed to consume minimal power, making it suitable for battery-operated applications.
5. Precision Voltage Reference: Provides a highly accurate voltage reference to ensure precise voltage monitoring.
6. Compact Packaging: Available in a small form-factor package, ideal for space-constrained applications.
These features make the DS1832S suitable for applications requiring reliable power monitoring and resetting capabilities, such as embedded systems and portable electronics.
Pinout
The DS1832S is a microcontroller supervisor circuit with the following key features:
1. Pin Count: The DS1832S is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
2. Pin Functions:
- VCC: Supply voltage input.
- GND: Ground reference.
- RST (Reset Output): Active-low reset output, which drives low whenever VCC is below the threshold, or when the manual reset is activated.
- RST (Active-high Reset Output): Complementary active-high reset output.
- PBRST (Pushbutton Reset Input): Input for manual reset, which can be triggered by an external pushbutton.
- TOL (Tolerance Select): Selects the voltage threshold level for triggering a reset.
- Watchdog Input: Monitors the activity of microcontroller output to prevent system lockup, requiring regular toggling.
- NC (No Connection): Not internally connected; often left unconnected.
The DS1832S provides essential functions such as power-fail monitoring, automatic reset generation, and a watchdog timer for ensuring the reliable operation of microcontroller systems.
1. Pin Count: The DS1832S is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
2. Pin Functions:
- VCC: Supply voltage input.
- GND: Ground reference.
- RST (Reset Output): Active-low reset output, which drives low whenever VCC is below the threshold, or when the manual reset is activated.
- RST (Active-high Reset Output): Complementary active-high reset output.
- PBRST (Pushbutton Reset Input): Input for manual reset, which can be triggered by an external pushbutton.
- TOL (Tolerance Select): Selects the voltage threshold level for triggering a reset.
- Watchdog Input: Monitors the activity of microcontroller output to prevent system lockup, requiring regular toggling.
- NC (No Connection): Not internally connected; often left unconnected.
The DS1832S provides essential functions such as power-fail monitoring, automatic reset generation, and a watchdog timer for ensuring the reliable operation of microcontroller systems.
Manufacturer
The DS1832S is manufactured by Maxim Integrated, which is a company that specializes in designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated provides a broad range of products for industries such as automotive, industrial, communications, consumer, and computing. The company is known for its expertise in power management, interface, and analog products, among others. In 2021, Maxim Integrated was acquired by Analog Devices, another leader in the semiconductor industry, which expanded their reach and capabilities in the design and manufacturing of integrated circuits.
Application
The DS1832S is a microprocessor supervisor chip designed for ensuring reliable operation in embedded systems. Its primary applications include monitoring power supply levels and providing reset signals to ensure proper system initialization. It's commonly used in areas like telecommunications, industrial control systems, consumer electronics, and networking equipment. The chip offers features such as power-on reset, watchdog timer, and a manual reset input, making it suitable for environments that require high reliability and protection against power failures or glitches. These features help prevent data corruption and system crashes, making the DS1832S an essential component in critical applications where system stability and data integrity are crucial.
Package
The DS1832S is a microprocessor supervisor IC from Maxim Integrated, housed in an 8-pin SOIC (Small Outline Integrated Circuit) package.