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74LV123D,118
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Multivibrator and Timer
- Characteristics: Dual retriggerable monostable multivibrator with reset
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Digital logic IC used for timing applications
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 1.65V to 5.5V
- High-Level Input Voltage: 2V to VCC + 0.3V
- Low-Level Input Voltage: -0.3V to 0.8V
- High-Level Output Voltage: VCC - 0.4V
- Low-Level Output Voltage: 0.4V
- Maximum Operating Frequency: 125MHz
- Propagation Delay Time: 6.5ns
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The 74LV123D,118 IC has a total of 16 pins. The pin configuration is as follows:
``` __ __ |1 __/ 16| |2 15| |3 14| |4 13| |5 12| |6 11| |7 10| |8 9|
```
Pin Description: 1. CLR1: Clear input 1 2. A1: Control input 1 3. B1: Control input 2 4. GND: Ground 5. B2: Control input 3 6. A2: Control input 4 7. CLR2: Clear input 2 8. Q2: Output 2 9. Q1: Output 1 10. VCC: Supply voltage 11. NC: No connection 12. NC: No connection 13. NC: No connection 14. NC: No connection 15. NC: No connection 16. NC: No connection
Functional Features
- Dual retriggerable monostable multivibrator with reset functionality
- Wide supply voltage range allows for versatile applications
- High-speed operation with low power consumption
- Schmitt-trigger inputs for improved noise immunity
- Can be used as a frequency divider or pulse generator
Advantages and Disadvantages
Advantages: - Flexible timing control with dual monostable multivibrators - Wide supply voltage range enables compatibility with various systems - Schmitt-trigger inputs provide noise immunity
Disadvantages: - Limited maximum operating frequency compared to some other ICs - Not suitable for high-frequency applications
Working Principles
The 74LV123D,118 is a dual retriggerable monostable multivibrator with reset functionality. It generates a single output pulse of a specified duration when triggered by an input signal. The duration of the output pulse is determined by external timing components connected to the control inputs. The multivibrator can be retriggered during the output pulse, extending its duration. The clear inputs allow for immediate termination of the output pulse. The IC operates based on digital logic principles and utilizes internal flip-flops and gates to achieve the desired timing functionality.
Detailed Application Field Plans
The 74LV123D,118 IC finds applications in various fields where precise timing control is required. Some of the potential application areas include: - Timing circuits in electronic devices - Pulse generation for communication systems - Frequency division in digital systems - Delay circuits in industrial automation - Timing control in automotive electronics
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the 74LV123D,118 IC are: - CD74HC123E: Dual retriggerable monostable multivibrator with reset - SN74LS123N: Dual precision monostable multivibrator with reset - MC14538B: Dual precision monostable multivibrator with reset
These alternative models can be considered based on specific requirements and compatibility with the target system.
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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням 74LV123D,118 у технічних рішеннях
Sure! Here are 10 common questions and answers related to the application of 74LV123D,118 in technical solutions:
Q: What is the 74LV123D,118? A: The 74LV123D,118 is a dual retriggerable monostable multivibrator IC that can be used in various timing applications.
Q: What is the operating voltage range of the 74LV123D,118? A: The 74LV123D,118 operates within a voltage range of 1.65V to 5.5V.
Q: How many inputs does the 74LV123D,118 have? A: The 74LV123D,118 has two inputs, labeled A and B.
Q: What is the maximum frequency at which the 74LV123D,118 can operate? A: The 74LV123D,118 can operate at a maximum frequency of 125 MHz.
Q: Can the 74LV123D,118 be used as a pulse stretcher? A: Yes, the 74LV123D,118 can be used as a pulse stretcher by adjusting the values of external resistors and capacitors.
Q: How does the retriggerable feature of the 74LV123D,118 work? A: The retriggerable feature allows the output pulse width to be extended if additional trigger pulses are received during the active period.
Q: What is the typical propagation delay of the 74LV123D,118? A: The typical propagation delay of the 74LV123D,118 is around 8 ns.
Q: Can the 74LV123D,118 be used in both digital and analog applications? A: No, the 74LV123D,118 is primarily designed for digital applications and may not be suitable for analog use.
Q: What is the maximum power dissipation of the 74LV123D,118? A: The maximum power dissipation of the 74LV123D,118 is 500 mW.
Q: Are there any specific precautions to consider when using the 74LV123D,118? A: It is important to ensure that the voltage levels applied to the inputs are within the specified range to prevent damage to the IC. Additionally, proper decoupling capacitors should be used to minimize noise and stabilize the power supply.
Please note that these answers are general and it's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information and specific design considerations.