SN74LS648DWE4
Product Overview
Category
SN74LS648DWE4 belongs to the category of integrated circuits (ICs).
Use
This IC is commonly used in digital electronics for various applications such as data multiplexing and demultiplexing.
Characteristics
- Low-power Schottky (LS) technology
- 8-bit bidirectional multiplexer/demultiplexer
- Wide operating voltage range: 2V to 6V
- High-speed operation: 10ns propagation delay
- TTL-compatible inputs and outputs
Package
SN74LS648DWE4 is available in a 24-pin wide body SOIC (Small Outline Integrated Circuit) package.
Essence
The essence of SN74LS648DWE4 lies in its ability to efficiently multiplex and demultiplex data signals in digital systems.
Packaging/Quantity
This IC is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.
Specifications
- Supply Voltage Range: 2V to 6V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay Time: 10ns (max)
- Input Capacitance: 10pF (typ)
- Output Capacitance: 15pF (typ)
Detailed Pin Configuration
- A0 - Multiplexer/Demultiplexer Address Input
- A1 - Multiplexer/Demultiplexer Address Input
- A2 - Multiplexer/Demultiplexer Address Input
- A3 - Multiplexer/Demultiplexer Address Input
- A4 - Multiplexer/Demultiplexer Address Input
- A5 - Multiplexer/Demultiplexer Address Input
- A6 - Multiplexer/Demultiplexer Address Input
- A7 - Multiplexer/Demultiplexer Address Input
- E1 - Enable Input 1
- E2 - Enable Input 2
- I/O0 - Bidirectional Data Input/Output 0
- I/O1 - Bidirectional Data Input/Output 1
- I/O2 - Bidirectional Data Input/Output 2
- I/O3 - Bidirectional Data Input/Output 3
- I/O4 - Bidirectional Data Input/Output 4
- I/O5 - Bidirectional Data Input/Output 5
- I/O6 - Bidirectional Data Input/Output 6
- I/O7 - Bidirectional Data Input/Output 7
- VCC - Positive Power Supply
- GND - Ground
- Y0 - Multiplexer Output 0 / Demultiplexer Input 0
- Y1 - Multiplexer Output 1 / Demultiplexer Input 1
- Y2 - Multiplexer Output 2 / Demultiplexer Input 2
- Y3 - Multiplexer Output 3 / Demultiplexer Input 3
Functional Features
- Bidirectional data multiplexing and demultiplexing
- Selectable address inputs for multiplexing or demultiplexing operation
- TTL-compatible inputs and outputs for easy integration with other digital circuits
- Wide operating voltage range allows compatibility with various power supply levels
- High-speed operation ensures efficient data transfer
Advantages and Disadvantages
Advantages
- Low-power consumption due to LS technology
- Versatile functionality for data multiplexing and demultiplexing
- Wide operating voltage range enables flexible usage
- Fast propagation delay time for efficient data transfer
Disadvantages
- Limited number of address inputs (up to 7) may restrict certain applications requiring higher addressability
- Availability and compatibility with other ICs may vary depending on the specific application requirements
Working Principles
SN74LS648DWE4 operates by selecting the desired address inputs to either multiplex or demultiplex the data signals. When used as a multiplexer, the selected input is routed to the output line. In demultiplexing mode, the input signal is directed to the corresponding output based on the selected address inputs.
The TTL-compatible inputs and outputs ensure seamless integration with other digital circuits, allowing for efficient data transfer and processing.
Detailed Application Field Plans
SN74LS648DWE4 finds applications in various fields, including: 1. Data communication systems 2. Digital signal processing 3. Microcontroller-based systems 4. Industrial automation 5. Instrumentation and measurement equipment
In these fields, this IC can be utilized for tasks such as data routing, signal selection, and protocol conversion.
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to SN74LS648DWE4 are
Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi SN74LS648DWE4 dalam penyelesaian teknikal
Sure! Here are 10 common questions and answers related to the application of SN74LS648DWE4 in technical solutions:
Q: What is SN74LS648DWE4? A: SN74LS648DWE4 is a specific type of integrated circuit (IC) commonly used as a bus transceiver in digital systems.
Q: What is the purpose of SN74LS648DWE4? A: SN74LS648DWE4 is designed to enable bidirectional data transfer between two buses with different voltage levels or protocols.
Q: What voltage levels does SN74LS648DWE4 support? A: SN74LS648DWE4 supports TTL (Transistor-Transistor Logic) voltage levels, typically around 5V.
Q: Can SN74LS648DWE4 be used in both directions simultaneously? A: Yes, SN74LS648DWE4 can be used for bidirectional data transfer, allowing simultaneous communication in both directions.
Q: How many data lines can SN74LS648DWE4 handle? A: SN74LS648DWE4 has 8 data lines, making it suitable for applications requiring parallel data transfer.
Q: Does SN74LS648DWE4 require external components for operation? A: Yes, SN74LS648DWE4 requires external pull-up resistors and decoupling capacitors for proper operation.
Q: What is the maximum operating frequency of SN74LS648DWE4? A: The maximum operating frequency of SN74LS648DWE4 is typically around 25 MHz.
Q: Can SN74LS648DWE4 be used in high-speed applications? A: While SN74LS648DWE4 is not specifically designed for high-speed applications, it can still be used in moderate-speed digital systems.
Q: Can SN74LS648DWE4 handle different protocols or data formats? A: Yes, SN74LS648DWE4 can be used to interface buses with different protocols or data formats, as long as the voltage levels are compatible.
Q: Are there any specific precautions to consider when using SN74LS648DWE4? A: It is important to ensure proper power supply decoupling and avoid exceeding the maximum voltage and current ratings specified in the datasheet.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult with technical experts for accurate information.