SN74AHCT126D
Product Overview
- Category: Integrated Circuit (IC)
- Use: Buffer/Line Driver
- Characteristics: High-speed, CMOS technology
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Quad bus buffer gate with 3-state outputs
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 4.5V to 5.5V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Output Drive Capability: ±24mA at 5V
- Propagation Delay Time: 6ns (typical)
Detailed Pin Configuration
The SN74AHCT126D has a 14-pin SOIC package with the following pin configuration:
- 1A (Input 1)
- 1Y (Output 1)
- 2A (Input 2)
- 2Y (Output 2)
- 3A (Input 3)
- 3Y (Output 3)
- GND (Ground)
- 4Y (Output 4)
- 4A (Input 4)
- OE (Output Enable)
- NC (No Connection)
- VCC (Supply Voltage)
- 4B (Input 4)
- 4Y (Output 4)
Functional Features
- Quad buffer gate with 3-state outputs
- High-speed operation suitable for various applications
- CMOS technology ensures low power consumption
- 3-state outputs allow multiple devices to share a common bus
Advantages and Disadvantages
Advantages: - High-speed operation enables efficient data transfer - CMOS technology provides low power consumption - 3-state outputs allow for bus sharing
Disadvantages: - Limited output drive capability compared to some other buffer ICs - Requires external pull-up resistors for proper operation in certain applications
Working Principles
The SN74AHCT126D is a quad buffer gate with 3-state outputs. It operates by receiving input signals on the four input pins (1A, 2A, 3A, and 4A) and providing corresponding buffered outputs on the four output pins (1Y, 2Y, 3Y, and 4Y). The output enable pin (OE) controls the state of the outputs. When OE is high, the outputs are in the high-impedance state, allowing multiple devices to share a common bus. When OE is low, the outputs reflect the logic levels of the input signals.
Detailed Application Field Plans
The SN74AHCT126D is commonly used in various digital systems where buffering and signal level translation are required. Some specific application fields include:
- Microcontrollers and microprocessors
- Communication systems
- Data acquisition systems
- Industrial automation
- Automotive electronics
Detailed and Complete Alternative Models
- SN74AHCT125D: Quad buffer gate with 3-state outputs, same package and characteristics as SN74AHCT126D.
- SN74LVC126AD: Quad buffer gate with 3-state outputs, different package (TSSOP) but similar characteristics.
- SN74HC126N: Quad buffer gate with 3-state outputs, different package (DIP) but similar characteristics.
These alternative models provide similar functionality and can be used as substitutes for the SN74AHCT126D depending on specific requirements and availability.
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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af SN74AHCT126D i tekniske løsninger
Sure! Here are 10 common questions and answers related to the application of SN74AHCT126D:
Q: What is SN74AHCT126D? A: SN74AHCT126D is a quad buffer/line driver with 3-state outputs, commonly used in digital logic applications.
Q: What is the operating voltage range for SN74AHCT126D? A: The operating voltage range for SN74AHCT126D is typically between 4.5V and 5.5V.
Q: What is the maximum output current that SN74AHCT126D can drive? A: SN74AHCT126D can drive up to 8mA of current per output.
Q: Can SN74AHCT126D be used as a level shifter? A: Yes, SN74AHCT126D can be used as a level shifter to convert signals between different voltage levels.
Q: How many inputs and outputs does SN74AHCT126D have? A: SN74AHCT126D has four independent input buffers and four independent output drivers.
Q: What is the purpose of the 3-state outputs in SN74AHCT126D? A: The 3-state outputs allow the outputs to be disabled or put into a high-impedance state when not in use.
Q: Can SN74AHCT126D be used in high-speed applications? A: Yes, SN74AHCT126D is designed for high-speed operation and can be used in applications with fast switching requirements.
Q: Is SN74AHCT126D compatible with TTL logic levels? A: Yes, SN74AHCT126D is compatible with both TTL and CMOS logic levels.
Q: Can SN74AHCT126D be used in automotive applications? A: Yes, SN74AHCT126D is suitable for automotive applications as it can operate within the specified temperature range and voltage levels.
Q: Are there any specific precautions to consider when using SN74AHCT126D? A: It is important to ensure that the power supply voltage does not exceed the maximum specified voltage range, and to follow proper ESD handling procedures during installation and handling of the device.
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 the manufacturer for detailed information.