SN74HC125D
Product Overview
Category
SN74HC125D belongs to the category of integrated circuits (ICs).
Use
It is commonly used as a quad bus buffer gate with 3-state outputs.
Characteristics
- High-speed CMOS technology
- 3-state outputs for bus-oriented applications
- Wide operating voltage range: 2 V to 6 V
- Low power consumption
- Schmitt-trigger inputs for noise immunity
- Available in various package options
Package and Quantity
SN74HC125D is available in a standard 14-pin dual in-line package (DIP). It is typically sold in reels or tubes containing multiple units.
Specifications
Electrical Characteristics
- Supply voltage range: 2 V to 6 V
- Input voltage range: 0 V to VCC
- Output voltage range: 0 V to VCC
- Maximum input current: ±1 µA
- Maximum output current: ±8 mA
Timing Characteristics
- Propagation delay time: 9 ns (typical)
- Transition time: 10 ns (typical)
Environmental Characteristics
- Operating temperature range: -40°C to +85°C
- Storage temperature range: -65°C to +150°C
Pin Configuration
The pin configuration of SN74HC125D is as follows:
___________
OE | 1 14 | VCC
A1 | 2 13 | Y1
B1 | 3 12 | A4
A2 | 4 11 | B4
B2 | 5 10 | Y4
GND | 6 9 | OE#
Y2 | 7 8 | B3
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Functional Features
- Quad 3-state buffer gate
- Non-inverting outputs
- Enable/disable control for each buffer gate
- High-speed operation
- Wide voltage range compatibility
- Noise immunity due to Schmitt-trigger inputs
Advantages and Disadvantages
Advantages
- High-speed CMOS technology allows for fast data transmission.
- 3-state outputs enable bus-oriented applications.
- Wide operating voltage range provides flexibility in various systems.
- Low power consumption helps conserve energy.
- Schmitt-trigger inputs ensure noise immunity.
Disadvantages
- Limited number of buffer gates (4 in this case).
- Not suitable for applications requiring a large number of buffer gates.
Working Principles
SN74HC125D operates as a quad 3-state buffer gate. It takes input signals and provides non-inverted output signals. The enable/disable control (OE) allows the user to activate or deactivate each buffer gate individually. When the OE pin is high, the outputs are in high-impedance state, allowing multiple devices to share a common bus without interference.
Detailed Application Field Plans
SN74HC125D finds applications in various fields, including: 1. Microcontroller-based systems 2. Data communication systems 3. Industrial automation 4. Automotive electronics 5. Robotics 6. Consumer electronics
Alternative Models
Some alternative models that can be used instead of SN74HC125D include: 1. SN74HCT125D 2. SN74LS125N 3. MC74HC125AN 4. CD74HC125E 5. 74HC125D,652
These models offer similar functionality and characteristics, providing options for different design requirements.
In conclusion, SN74HC125D is a versatile quad bus buffer gate with 3-state outputs. Its high-speed CMOS technology, wide voltage range, and low power consumption make it suitable for various applications. However, its limited number of buffer gates may restrict its use in certain scenarios. Alternative models offer flexibility and compatibility with different design specifications.
기술 솔루션에 SN74HC125D 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of SN74HC125D:
Q: What is SN74HC125D? A: SN74HC125D is a quad buffer gate with 3-state outputs, commonly used in digital logic circuits.
Q: What is the voltage supply range for SN74HC125D? A: The voltage supply range for SN74HC125D is typically between 2V and 6V.
Q: What is the maximum output current of SN74HC125D? A: The maximum output current of SN74HC125D is around 8mA.
Q: Can SN74HC125D be used as a level shifter? A: Yes, SN74HC125D can be used as a level shifter to convert signals between different voltage levels.
Q: How many input and output pins does SN74HC125D have? A: SN74HC125D has 4 input pins and 4 output pins.
Q: What is the purpose of the 3-state outputs in SN74HC125D? A: The 3-state outputs allow the device to be effectively disconnected from the circuit, enabling multiple devices to share a common bus.
Q: Can SN74HC125D be used in high-speed applications? A: Yes, SN74HC125D is designed for high-speed operation and can be used in applications with fast switching requirements.
Q: Is SN74HC125D compatible with TTL logic levels? A: Yes, SN74HC125D is compatible with both TTL and CMOS logic levels.
Q: Can SN74HC125D be used in bidirectional data transfer applications? A: No, SN74HC125D is a unidirectional buffer and cannot be used for bidirectional data transfer.
Q: What is the typical propagation delay of SN74HC125D? A: The typical propagation delay of SN74HC125D is around 9 ns.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.