Supply Voltage:3.3V to 5V
Counter Resolution:32-bit Counter
ESD Protection:±15kV on Bus Pins
Number:2000
Price:$0.44743/件
Packing:eel diamete

The N82802AB8 is a Programmable Interval Timer/Counter (PIT/C) designed by Nuvoton Technology, providing high-precision timing and control functionalities for a wide range of applications. With its ability to generate pulses, handle timing intervals, and synchronize various systems, the N82802AB8 is an essential component in industrial, embedded, and communication systems.

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Features of the N82802AB8

1. Programmable Timer/Counter

   • The N82802AB8 offers flexible and programmable timing intervals with a built-in 32-bit counter, allowing precise control for various timing operations.

2. Multiple Operating Modes

   • This device supports multiple operating modes, including one-shot, rate generator, and square wave generator modes, enabling diverse timing applications.

3. External Clock Input

   • The N82802AB8 can be clocked from an external source, offering flexibility for systems requiring an external reference clock for time-based operations.

4. Low Power Consumption

   • Designed with power efficiency in mind, this device operates at low power, making it ideal for energy-sensitive applications such as battery-powered devices.

5. Wide Range of Pulse Width Control

   • It allows programmable output pulse widths, which can be customized for different applications that require varying timing signals.

6. Watchdog Timer Functionality

   • The built-in watchdog timer resets or interrupts the system if the software fails to perform a required task, ensuring system stability and preventing failure.

7. Interrupt Output

   • Interrupt output is available to alert the system when specific timing events occur, enabling responsive system control.

8. Multiple Timer Channels

   • The N82802AB8 provides several channels for simultaneous timer operations, allowing multiple tasks to be handled concurrently in complex systems.

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Applications of the N82802AB8

The N82802AB8 is highly versatile and is used across a wide range of fields requiring precise timing, pulse generation, and control functions:

1. Embedded Systems

   • It is frequently used in microcontroller-based systems for managing periodic tasks, such as event scheduling, polling, and time-critical operations.

2. Industrial Automation

   • In PLC (Programmable Logic Controllers) and factory automation systems, the N82802AB8 handles precise timing functions for motor control, sensor timings, and other process control needs.

3. Real-Time Clocks (RTC)

   • Employed in real-time clock applications, it provides accurate time signals and can synchronize various devices within embedded systems.

4. Watchdog Systems

   • It is used in watchdog timer applications to ensure systems reset or generate an interrupt if software fails or gets stuck in an infinite loop.

5. Consumer Electronics

   • In consumer electronics like digital clocks, timers, and smart home devices, the N82802AB8 manages time-sensitive operations efficiently.

6. Communication Systems

   • Used for clock synchronization in communication systems, the device helps synchronize timing for data transmission and pulse generation.

7. Automated Testing Equipment

   • Utilized in test equipment for generating accurate time-controlled signals, such as delays, frequencies, or measuring timing accuracy.

8. Medical Devices

   • In medical devices, the N82802AB8 ensures precise timing for various tests or processes, ensuring accurate readings and operations.

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Design Considerations for the N82802AB8

To achieve optimal performance and reliability with the N82802AB8, consider the following design guidelines:

1. Pin Configuration and Layout

   • Ensure proper connections for the external clock input, interrupt output, and timer channels. A clean and well-organized PCB layout will ensure signal integrity.

2. Power Supply

   • The N82802AB8 operates with a supply voltage range of 3.3V to 5V. For stable operation, place decoupling capacitors close to the power pins to minimize noise.

3. Clock Source Selection

   • If using an external clock, ensure that the clock source provides a stable frequency and is within the required range for the application.

4. Timer Configuration

   • Configure the device to select the correct timer mode (one-shot, rate generator, etc.) based on the requirements of the application. Proper interval calculations will prevent counter overflow and ensure reliable operation.

5. Interrupt Handling

   • If utilizing interrupts, ensure proper configuration of interrupt pins and interrupt service routines (ISRs) in the software to ensure accurate and timely event handling.

6. Watchdog Timer Setup

   • The watchdog timer feature ensures system stability. Set it up according to the system’s need to automatically reset or interrupt the system in case of a failure.

7. Low-Power Mode Management

   • Utilize the low-power mode during idle times to optimize power consumption, especially in battery-operated devices.

8. Thermal Management

   • For systems operating in high-temperature environments, proper heat dissipation and ventilation should be considered to maintain the device's performance.

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Conclusion

The N82802AB8 is a highly capable Programmable Interval Timer/Counter that provides precise timing, pulse generation, and system control in various applications. Whether used in embedded systems, industrial automation, or communication systems, the N82802AB8 excels at ensuring accurate timing and robust system operation. Its low power consumption, programmable features, and watchdog timer functionality make it a valuable component for critical time-based operations in both consumer and industrial electronics.