MM74HC123ASJX
Product Overview
- Category: Integrated Circuit (IC)
- Use: Multivibrator
- Characteristics: High-speed, Monostable Multivibrator
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Flip-flop circuit with retriggerable/resettable capability
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage: 2V to 6V
- Propagation Delay Time: 14 ns (typical)
- Trigger Pulse Width Range: 25 ns to 1000 ns
- Operating Temperature Range: -40°C to +85°C
- Output Current: ±25 mA
- Input Capacitance: 3.5 pF (typical)
Pin Configuration
The MM74HC123ASJX has a total of 16 pins arranged as follows:
___________
| |
1 | 16 | VCC
2 | 15 | Q
3 | 14 | /Q
4 | 13 | MR
5 | 12 | TR
6 | 11 | RC
7 | 10 | CEXT
8 | 9 | GND
|___________|
Functional Features
- Retriggerable/Resettable Monostable Multivibrator
- Positive Edge-Triggered
- Wide Operating Voltage Range
- High-Speed Operation
- Low Power Consumption
- Schmitt Trigger Inputs for Noise Immunity
Advantages
- Flexible timing control with retriggerable capability
- Reliable operation in noisy environments due to Schmitt Trigger inputs
- Wide operating voltage range allows compatibility with various systems
- High-speed operation enables quick response times
Disadvantages
- Limited output current capacity
- Requires external components for timing control
- Not suitable for applications requiring precise timing accuracy
Working Principles
The MM74HC123ASJX is a monostable multivibrator, also known as a one-shot pulse generator. It produces a single output pulse of a fixed duration in response to an input trigger signal. The circuit can be retriggered or reset before the end of the pulse duration, allowing for flexible timing control.
Detailed Application Field Plans
The MM74HC123ASJX finds applications in various fields where precise timing control and pulse generation are required. Some common application areas include:
- Timing circuits in digital systems
- Delay circuits in communication equipment
- Pulse width modulation (PWM) generation
- Frequency division circuits
- Control signal generation in industrial automation
Alternative Models
Here are some alternative models that offer similar functionality:
- CD74HC123E - High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrator
- SN74HC123N - Dual Monostable Multivibrator with Schmitt-Trigger Inputs
- MC74HC123AN - High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrator
These alternatives can be considered based on specific requirements and availability.
Word count: 250 words
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Sure! Here are 10 common questions and answers related to the application of MM74HC123ASJX in technical solutions:
Q: What is MM74HC123ASJX? A: MM74HC123ASJX is a dual retriggerable monostable multivibrator IC, commonly used in timing and control applications.
Q: What is the operating voltage range for MM74HC123ASJX? A: The operating voltage range for MM74HC123ASJX is typically between 2V and 6V.
Q: What is the maximum output current of MM74HC123ASJX? A: The maximum output current of MM74HC123ASJX is around 5mA.
Q: How many inputs does MM74HC123ASJX have? A: MM74HC123ASJX has two inputs, labeled as A and B.
Q: What is the function of the A and B inputs in MM74HC123ASJX? A: The A and B inputs are used to trigger the multivibrator and determine the output pulse width.
Q: Can MM74HC123ASJX be used as a frequency divider? A: Yes, MM74HC123ASJX can be used as a frequency divider by connecting the output of a clock signal to the A input and using the B input as a control signal.
Q: What is the typical output pulse width range of MM74HC123ASJX? A: The typical output pulse width range of MM74HC123ASJX is from microseconds to milliseconds, depending on the external components connected.
Q: Is MM74HC123ASJX suitable for high-speed applications? A: Yes, MM74HC123ASJX is designed for high-speed operation and can be used in applications requiring fast timing control.
Q: Can MM74HC123ASJX operate in both monostable and astable modes? A: Yes, MM74HC123ASJX can operate in both monostable (one-shot) and astable (free-running) modes, depending on the external connections.
Q: What are some common applications of MM74HC123ASJX? A: MM74HC123ASJX is commonly used in applications such as pulse width modulation, frequency division, time delay generation, and precision timing circuits.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.