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SN74HC126N
Product Overview
- Category: Integrated Circuit (IC)
- Use: Buffer/Driver
- Characteristics: High-speed, Non-Inverting, 3-State Output
- Package: DIP (Dual In-line Package)
- Essence: The SN74HC126N is a quad buffer/driver with 3-state outputs, designed for use in high-speed digital systems.
- Packaging/Quantity: Available in tubes or reels, with varying quantities depending on the supplier.
Specifications
- Supply Voltage: 2V to 6V
- Input Voltage: 0V to VCC
- Output Voltage: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay: 9 ns (typical)
- Output Current: ±8 mA
Pin Configuration
The SN74HC126N has a 14-pin DIP package. The pin configuration is as follows:
__ __
1 |1 \__/ 14| VCC
2 |2 13| A
3 |3 12| B
4 |4 11| C
5 |5 SN 10| D
6 |6 74 9| OE
7 |7 HC 8| Y
|_________|
Functional Features
- Quad non-inverting buffer/driver with 3-state outputs.
- High-speed operation suitable for various digital applications.
- 3-state outputs allow multiple devices to share a common bus without interference.
- Inputs are compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.
Advantages and Disadvantages
Advantages
- High-speed operation enables efficient data transfer in digital systems.
- 3-state outputs facilitate bus sharing, reducing the number of required components.
- Compatible with both TTL and CMOS logic levels, providing versatility in system design.
Disadvantages
- Limited output current may not be suitable for driving heavy loads.
- Requires external pull-up resistors when used as an open-drain output.
Working Principles
The SN74HC126N acts as a buffer/driver, amplifying and shaping digital signals. It takes input signals from A, B, C, and D pins and provides non-inverted outputs at the Y pin. The OE (Output Enable) pin controls the 3-state outputs, allowing them to be either active or high impedance.
Detailed Application Field Plans
The SN74HC126N is commonly used in various digital applications, including:
- Microcontrollers: Used to interface microcontrollers with other digital devices.
- Data Communication Systems: Enables signal buffering and level shifting in communication interfaces.
- Memory Systems: Facilitates address and data bus buffering in memory modules.
- Industrial Control Systems: Provides signal amplification and isolation in control circuits.
Detailed and Complete Alternative Models
- SN74HC125N: Quad buffer/driver with 3-state outputs, similar to SN74HC126N but with inverted outputs.
- SN74HCT126N: Quad buffer/driver with 3-state outputs, compatible with both TTL and CMOS logic levels.
- SN74LS126N: Quad buffer/driver with 3-state outputs, designed for use in low-power applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74HC126N en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of SN74HC126N in technical solutions:
Q: What is SN74HC126N? A: SN74HC126N is a quad bus buffer gate with 3-state outputs, commonly used in digital logic circuits.
Q: What is the voltage supply range for SN74HC126N? A: The voltage supply range for SN74HC126N is typically between 2V and 6V.
Q: What is the maximum output current of SN74HC126N? A: The maximum output current of SN74HC126N is around 8mA per channel.
Q: Can SN74HC126N be used as a level shifter? A: Yes, SN74HC126N can be used as a level shifter to convert signals between different voltage levels.
Q: How many channels does SN74HC126N have? A: SN74HC126N has four independent channels, allowing it to buffer or invert up to four signals.
Q: What is the purpose of the 3-state outputs in SN74HC126N? A: The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus without interference.
Q: What is the typical propagation delay of SN74HC126N? A: The typical propagation delay of SN74HC126N is around 9ns.
Q: Can SN74HC126N be used in high-speed applications? A: Yes, SN74HC126N can be used in high-speed applications due to its relatively low propagation delay.
Q: Is SN74HC126N compatible with TTL logic levels? A: Yes, SN74HC126N is compatible with TTL logic levels, making it suitable for interfacing between different logic families.
Q: What are some common applications of SN74HC126N? A: Some common applications of SN74HC126N include bus buffering, level shifting, signal inversion, and driving LEDs or other low-power devices.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.