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MC74HC390AD
Product Overview
Category
MC74HC390AD belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in digital electronic circuits for various applications.
Characteristics
- High-speed operation
- Low power consumption
- Wide operating voltage range
- Compatibility with TTL logic levels
- High noise immunity
Package
MC74HC390AD is available in a 16-pin dual in-line package (DIP).
Essence
The essence of MC74HC390AD lies in its ability to perform high-speed digital operations while consuming minimal power.
Packaging/Quantity
This product is typically packaged in reels or tubes, with each containing a specific quantity of MC74HC390AD ICs.
Specifications
- Supply Voltage: 2V to 6V
- Operating Temperature Range: -40°C to +85°C
- Logic Family: HC
- Number of Pins: 16
- Output Current: ±25mA
Detailed Pin Configuration
- Q0 - Output 0
- Q1 - Output 1
- Q2 - Output 2
- Q3 - Output 3
- Q4 - Output 4
- Q5 - Output 5
- Q6 - Output 6
- Q7 - Output 7
- GND - Ground
- MR - Master Reset
- CP - Clock Pulse
- CE - Count Enable
- RCO - Ripple Carry Output
- TC - Terminal Count
- VCC - Power Supply
- Q8 - Output 8
Functional Features
- Asynchronous master reset
- Synchronous counting
- Ripple carry output for cascading multiple counters
- Terminal count output for indicating maximum count reached
- Count enable input for controlling counting operation
Advantages and Disadvantages
Advantages
- High-speed operation allows for efficient digital circuit design.
- Low power consumption contributes to energy efficiency.
- Wide operating voltage range provides flexibility in various applications.
- Compatibility with TTL logic levels ensures easy integration with existing systems.
- High noise immunity enhances reliability in noisy environments.
Disadvantages
- Limited number of outputs (8) may restrict certain complex applications.
- Lack of built-in error detection or correction mechanisms.
Working Principles
MC74HC390AD is a synchronous decade counter with asynchronous master reset. It counts from 0 to 9 and then resets to 0 upon reaching the maximum count. The clock pulse input (CP) triggers the counting operation, while the count enable input (CE) controls whether the counter should increment or remain static. The ripple carry output (RCO) allows cascading multiple counters to achieve larger counting ranges.
Detailed Application Field Plans
MC74HC390AD finds applications in various fields, including: 1. Digital frequency dividers 2. Event counters 3. Industrial automation systems 4. Communication equipment 5. Automotive electronics 6. Consumer electronics 7. Robotics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to MC74HC390AD are: 1. CD4017BE 2. SN74LS90N 3. HEF4017BP 4. CD4026BE 5. SN74HC393N
These alternative models offer similar functionality and can be used as replacements depending on specific requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC74HC390AD v technických řešeních
Sure! Here are 10 common questions and answers related to the application of MC74HC390AD in technical solutions:
Q: What is MC74HC390AD? A: MC74HC390AD is a dual 4-bit decade counter/divider integrated circuit (IC) that can be used in various digital applications.
Q: What is the purpose of MC74HC390AD? A: MC74HC390AD is primarily used for counting and dividing signals in digital circuits, making it useful in applications such as frequency division, timekeeping, and event sequencing.
Q: What is the maximum clock frequency supported by MC74HC390AD? A: The maximum clock frequency supported by MC74HC390AD is typically around 25 MHz.
Q: How many outputs does MC74HC390AD have? A: MC74HC390AD has two independent 4-bit ripple counters, which means it has a total of eight outputs.
Q: Can MC74HC390AD be cascaded to increase the number of bits? A: Yes, MC74HC390AD can be cascaded with other similar ICs to increase the number of bits in the counter or divider.
Q: What is the power supply voltage range for MC74HC390AD? A: The power supply voltage range for MC74HC390AD is typically between 2V and 6V.
Q: Does MC74HC390AD have any built-in error detection or correction features? A: No, MC74HC390AD does not have any built-in error detection or correction features. It is a basic counter/divider IC.
Q: Can MC74HC390AD be used in both synchronous and asynchronous modes? A: Yes, MC74HC390AD can be used in both synchronous and asynchronous modes of operation, depending on the application requirements.
Q: What is the maximum output current that MC74HC390AD can drive? A: The maximum output current that MC74HC390AD can drive is typically around 4 mA.
Q: Are there any specific precautions to consider when using MC74HC390AD? A: It is important to ensure proper decoupling capacitors are used near the power supply pins of MC74HC390AD to minimize noise and voltage fluctuations. Additionally, care should be taken to avoid exceeding the maximum ratings specified in the datasheet, such as voltage and temperature limits.
Please note that the answers provided here are general and may vary based on specific datasheet specifications and application requirements.