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SN74AS158DRE4
Product Overview
- Category: Integrated Circuit (IC)
- Use: Digital Multiplexer
- Characteristics: High-speed, low-power consumption
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Combines multiple input signals into a single output signal
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Logic Family: AS
- Number of Inputs: 4
- Number of Outputs: 1
- Supply Voltage Range: 4.5V to 5.5V
- Operating Temperature Range: -40°C to 85°C
- Propagation Delay Time: 9 ns (typical)
- Input Capacitance: 3 pF (typical)
- Output Current: ±24 mA (max)
Detailed Pin Configuration
The SN74AS158DRE4 has a total of 16 pins, which are assigned as follows:
- A0 (Input)
- A1 (Input)
- A2 (Input)
- A3 (Input)
- Y (Output)
- G (Enable Input)
- VCC (Supply Voltage)
- B0 (Input)
- B1 (Input)
- B2 (Input)
- B3 (Input)
- Y (Output)
- GND (Ground)
- C0 (Input)
- C1 (Input)
- C2 (Input)
Functional Features
The SN74AS158DRE4 is a digital multiplexer that allows the selection of one out of four input signals to be routed to a single output. It operates at high speed and consumes low power, making it suitable for various applications.
Advantages and Disadvantages
Advantages: - High-speed operation - Low power consumption - Compact SOIC package - Wide supply voltage range
Disadvantages: - Limited number of inputs and outputs - Propagation delay may affect timing-sensitive applications
Working Principles
The SN74AS158DRE4 uses a combination of logic gates to implement the multiplexing functionality. The input signals are decoded, and based on the control inputs, one of the input signals is selected and passed through to the output.
Detailed Application Field Plans
The SN74AS158DRE4 can be used in various applications, including but not limited to: - Data communication systems - Digital signal processing - Multiplexing audio or video signals - Address decoding in microprocessors
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the SN74AS158DRE4 include: - CD4051B: 8-channel analog multiplexer/demultiplexer - 74HC151: 8-input multiplexer - SN74LS157: Quad 2-line to 1-line data selector/multiplexer
These alternatives may have different specifications, pin configurations, and package options, so it is important to select the most suitable one based on specific requirements.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng SN74AS158DRE4 trong giải pháp kỹ thuật
Sure! Here are 10 common questions and answers related to the application of SN74AS158DRE4 in technical solutions:
Q: What is SN74AS158DRE4? A: SN74AS158DRE4 is a quad 2-input multiplexer IC (Integrated Circuit) that can be used for data routing and selection in digital circuits.
Q: What is the operating voltage range of SN74AS158DRE4? A: The operating voltage range of SN74AS158DRE4 is typically between 4.5V and 5.5V.
Q: How many inputs does SN74AS158DRE4 have? A: SN74AS158DRE4 has four independent 2-input multiplexers, allowing you to select from a total of eight input signals.
Q: What is the output configuration of SN74AS158DRE4? A: SN74AS158DRE4 has complementary outputs, meaning it provides both true and inverted outputs for each selected input.
Q: What is the maximum frequency at which SN74AS158DRE4 can operate? A: SN74AS158DRE4 can typically operate at frequencies up to 125 MHz.
Q: Can SN74AS158DRE4 handle analog signals? A: No, SN74AS158DRE4 is designed specifically for digital signals and is not suitable for handling analog signals.
Q: What is the power supply current requirement for SN74AS158DRE4? A: The power supply current requirement for SN74AS158DRE4 is typically around 8 mA.
Q: Is SN74AS158DRE4 compatible with TTL logic levels? A: Yes, SN74AS158DRE4 is compatible with TTL (Transistor-Transistor Logic) logic levels, making it suitable for interfacing with other TTL devices.
Q: Can SN74AS158DRE4 be used in high-speed applications? A: Yes, SN74AS158DRE4 is designed to operate at high speeds and can be used in various high-speed digital applications.
Q: What package does SN74AS158DRE4 come in? A: SN74AS158DRE4 is available in a 16-pin SOIC (Small Outline Integrated Circuit) package, which is commonly used in surface-mount applications.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.