Overview
The 74HC125D/S400118, produced by NXP USA Inc., is a quad buffer/line driver with 3-state outputs. This device is part of the 74HC family, known for its CMOS technology, which offers low power consumption and high noise immunity. The 74HC125D is designed to operate over a wide supply voltage range from 2.0 V to 6.0 V, making it versatile for various applications. Each buffer has a separate enable pin that, when driven with a high logic level, places the corresponding output in the high impedance state.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Type Number | Part Number | 74HC125D/S400118 |
| VCC (Supply Voltage) | Range | 2.0 V to 6.0 V |
| Logic Switching Levels | Input Levels | CMOS levels |
| Output Drive Capability | Current at VCC = 4.5 V | ± 7.8 mA |
| fmax (Maximum Frequency) | Frequency at VCC = 4.5 V | 36 MHz |
| Number of Bits | Number of Buffer Gates | 4 |
| Power Dissipation | Considerations | Low power consumption |
| Tamb (Ambient Temperature) | Operating Range | -40 °C to +125 °C |
| Package | Type and Dimensions | SO14 (SOT108-1), 8.65 mm x 3.9 mm x 1.75 mm |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it suitable for a variety of applications.
- CMOS Low Power Dissipation: Offers low power consumption, which is beneficial for energy-efficient designs.
- High Noise Immunity: Provides robust performance against noise and interference.
- 3-State Outputs: Each buffer has a separate enable pin that can place the output in a high impedance state.
- Schmitt Trigger Action: All inputs have Schmitt trigger action, enhancing noise immunity and stability.
- ESD Protection: Exceeds JESD 22 standards for Human Body Model (HBM) and Charged Device Model (CDM) ESD protection.
Applications
- General Logic Circuits: Suitable for use in various digital logic circuits where buffering and line driving are required.
- Interface Circuits: Can be used to interface between different voltage levels and logic families.
- Industrial Control Systems: Used in industrial control systems for reliable and noise-immune signal transmission.
- Consumer Electronics: Found in consumer electronics for its low power consumption and wide supply voltage range.
Q & A
- What is the supply voltage range of the 74HC125D?
The 74HC125D operates over a supply voltage range from 2.0 V to 6.0 V.
- What type of logic levels does the 74HC125D support?
The 74HC125D supports CMOS logic levels.
- How many buffer gates does the 74HC125D have?
The 74HC125D has four independent buffer gates.
- What is the maximum frequency of operation for the 74HC125D?
The maximum frequency of operation for the 74HC125D is 36 MHz at VCC = 4.5 V.
- What is the package type and dimensions of the 74HC125D?
The 74HC125D comes in an SO14 (SOT108-1) package with dimensions of 8.65 mm x 3.9 mm x 1.75 mm.
- Does the 74HC125D have ESD protection?
Yes, the 74HC125D exceeds JESD 22 standards for Human Body Model (HBM) and Charged Device Model (CDM) ESD protection.
- What is the operating temperature range of the 74HC125D?
The operating temperature range of the 74HC125D is from -40 °C to +125 °C.
- Can the 74HC125D be used in industrial control systems?
Yes, the 74HC125D is suitable for use in industrial control systems due to its high noise immunity and reliability.
- Does the 74HC125D have Schmitt trigger action on its inputs?
Yes, all inputs of the 74HC125D have Schmitt trigger action, which enhances noise immunity and stability.
- How does the 3-state output feature work on the 74HC125D?
Each buffer has a separate enable pin that, when driven with a high logic level, places the corresponding output in the high impedance state.
