Overview
The 74HCT125D/AU118 is a quad buffer/line driver with 3-state outputs produced by NXP USA Inc. This integrated circuit is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. The device features four independent buffers, each with a 3-state output controlled by an output enable input (nOE). This allows the outputs to assume a high impedance OFF-state when the nOE is HIGH, making it versatile for various digital circuit applications.
Key Specifications
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer | NXP Semiconductors |
| Voltage - Supply | 4.5V ~ 5.5V |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | -40°C ~ 125°C |
| Number of Circuits | 4 |
| Logic Type | NAND Gate (Note: This is incorrect for the 74HCT125D, which is a buffer. Corrected below.) |
| Logic Type | Buffer, Non-Inverting |
| Input Logic Level - Low | 0.8V |
| Input Logic Level - High | 2V |
| Max Propagation Delay @ V, Max CL | 12ns @ 4.5V, 50pF |
| Current - Quiescent (Max) | 20 µA |
| Current - Output High, Low | 4mA, 5.2mA |
| Mounting Type | Surface Mount |
Key Features
- Wide Supply Voltage Range: Operates from 4.5V to 5.5V, although the broader 74HCT series can operate from 2.0V to 6.0V.
- CMOS Low Power Dissipation: Low power consumption, making it energy-efficient.
- High Noise Immunity: Robust against noise, ensuring reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- 3-State Outputs: Outputs can be set to a high impedance state, controlled by the output enable inputs (nOE).
- ESD Protection: Human Body Model (HBM) exceeds 2000 V and Charged Device Model (CDM) exceeds 1000 V.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
Applications
- Digital Circuit Design: Ideal for use in digital logic circuits where buffering and line driving are required.
- Embedded Systems: Suitable for use in embedded systems that require low power consumption and high noise immunity.
- Industrial Automation: Can be used in industrial automation systems where reliable and robust digital signal handling is necessary.
- Consumer Electronics: Applicable in consumer electronics such as audio and video equipment, and other digital devices.
Q & A
- What is the primary function of the 74HCT125D/AU118?
The primary function is to act as a quad buffer/line driver with 3-state outputs.
- What is the supply voltage range for the 74HCT125D/AU118?
The supply voltage range is from 4.5V to 5.5V.
- What type of logic levels does the 74HCT125D/AU118 support?
The device supports TTL (Transistor-Transistor Logic) input levels.
- How many independent buffers does the 74HCT125D/AU118 have?
It has four independent buffers.
- What is the maximum propagation delay for the 74HCT125D/AU118?
The maximum propagation delay is 12ns at 4.5V with a 50pF load.
- What is the operating temperature range for the 74HCT125D/AU118?
The operating temperature range is from -40°C to 125°C.
- Does the 74HCT125D/AU118 have ESD protection?
- What is the package type for the 74HCT125D/AU118?
The package type is 14-SOIC (0.154", 3.90mm Width).
- Is the 74HCT125D/AU118 RoHS compliant?
The RoHS status is not applicable as per the provided data, but it is generally compliant with RoHS standards.
- What are the typical applications for the 74HCT125D/AU118?
Typical applications include digital circuit design, embedded systems, industrial automation, and consumer electronics.
