Overview
The 74HCT125D/AUJ, produced by Nexperia USA Inc., is a quad buffer/line driver with 3-state outputs. This device is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. The 74HCT125D/AUJ features four independent buffer gates, each with a separate enable pin that controls the output state. When the enable pin is driven high, the corresponding output assumes a high impedance state, making it ideal for applications requiring output control.
The device operates over a wide supply voltage range from 4.5V to 5.5V, making it versatile for various electronic designs. It is also characterized by its low power consumption, high noise immunity, and robust ESD protection.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | V |
| Operating Temperature | -40 | 125 | °C |
| Input Voltage (VI) | 0 | VCC | V |
| High-Level Input Voltage (VIH) | 2.0 | 2.0 | V |
| Low-Level Input Voltage (VIL) | 0.8 | 0.8 | V |
| High-Level Output Voltage (VOH) | 3.84 | 4.4 | V |
| Low-Level Output Voltage (VOL) | 0.1 | 0.4 | V |
| Output Drive Capability | ±4 | mA | |
| Propagation Delay (tPD) | 15 | 38 | ns |
| Package Type | SO14 (SOT108-1) |
Key Features
- Wide Supply Voltage Range: Operates from 4.5V to 5.5V, making it compatible with a variety of power supply systems.
- TTL Input Levels: Inputs are TTL voltage level compatible, ensuring seamless integration with TTL-based systems.
- 3-State Outputs: Each buffer has a separate enable pin that can place the output in a high impedance state, useful for bus applications.
- Low Power Consumption: CMOS technology ensures low power dissipation, making it energy-efficient.
- High Noise Immunity: The device features high noise immunity, enhancing its reliability in noisy environments.
- ESD Protection: Exceeds JESD 22 standards for Human Body Model (HBM) and Charged Device Model (CDM), providing robust protection against electrostatic discharge.
- Schmitt Trigger Action: All inputs have Schmitt trigger action, which helps in reducing noise and improving signal integrity.
Applications
The 74HCT125D/AUJ is versatile and can be used in a variety of applications across different industries, including:
- Industrial Automation: For controlling and interfacing various industrial devices.
- Automotive Systems: Qualified to AEC-Q100/Q101 standards, making it suitable for automotive applications.
- Consumer Electronics: Used in consumer devices that require reliable and efficient logic buffering.
- Computing and Networking: For bus interfacing and signal buffering in computing and networking equipment.
Q & A
- What is the supply voltage range of the 74HCT125D/AUJ?
The supply voltage range is from 4.5V to 5.5V.
- What type of input levels does the 74HCT125D/AUJ support?
The device supports TTL (Transistor-Transistor Logic) input levels.
- How many buffer gates does the 74HCT125D/AUJ have?
The device has four independent buffer gates.
- What is the purpose of the enable pins on the 74HCT125D/AUJ?
The enable pins control the output state, placing the output in a high impedance state when driven high.
- What is the operating temperature range of the 74HCT125D/AUJ?
The operating temperature range is from -40°C to 125°C.
- Does the 74HCT125D/AUJ have ESD protection?
Yes, it exceeds JESD 22 standards for Human Body Model (HBM) and Charged Device Model (CDM).
- What package types are available for the 74HCT125D/AUJ?
The device is available in SO14 (SOT108-1) and TSSOP-14 packages.
- Is the 74HCT125D/AUJ automotive qualified?
Yes, it is qualified to AEC-Q100/Q101 standards.
- What is the propagation delay of the 74HCT125D/AUJ?
The propagation delay is between 15ns and 38ns.
- Does the 74HCT125D/AUJ have Schmitt trigger action on its inputs?
Yes, all inputs have Schmitt trigger action.
