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| Product attributes | Property Value |
| Manufacturer | Nexperia USA Inc. |
| Product Series | 74HCT |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 6mA, 6mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 14-TSSOP |
The 74HCT125PW,112 from Nexperia is a quad non-inverting buffer in the 74HCT logic family. It features four independent buffer channels with 3-State outputs, ideal for bus-oriented applications. The device operates from 4.5V to 5.5V, making it perfectly suited for 5V TTL systems. Each output can sink or source 6mA, providing adequate drive for standard logic loads. The 14-pin TSSOP package is compact and suitable for high-density PCB designs. This buffer is commonly used in bus interfacing, signal buffering, and automotive applications.
- TTL-Compatible Inputs: Directly interfaces with 5V TTL logic without level shifting.
- Extended Temperature Range (-40°C to 125°C): Suitable for automotive and industrial applications.
- 3-State Outputs: Enables bus sharing and prevents data contention.
- Compact TSSOP Package: Saves board space in high-density designs.
5V TTL Bus Interfacing
The 74HCT125PW is designed for 5V TTL systems, operating from 4.5V to 5.5V. Its TTL-compatible inputs ensure direct interfacing with legacy TTL logic without additional level-shifting circuitry.
Microcontroller to Peripheral Isolation
With 3-State outputs, this buffer can isolate a microcontroller from peripherals when not in use. This is critical in multi-drop bus architectures like I2C or SPI where multiple devices share the same lines.
Driving High-Capacitance Traces
The 6mA output current capability allows the 74HCT125PW to drive long PCB traces or cables with higher capacitance, maintaining signal integrity in noisy industrial environments.
Memory Address Decoding and Buffering
In memory systems, this buffer can be used to buffer address lines, ensuring that the memory array is only driven when selected. The 3-State feature prevents bus contention during read/write cycles.
Automotive ECU Signal Conditioning
With an extended temperature range of -40°C to 125°C, this buffer is suitable for automotive electronic control units (ECUs) where reliable operation under extreme temperatures is required.
Industrial Control Logic Level Conversion
For industrial control systems operating at 5V, this buffer provides a robust interface between sensors, PLCs, and microcontrollers, ensuring clean signal propagation over longer distances.
- Q: What is the logic family of the 74HCT125PW?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL-compatible inputs) logic family.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared buses.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V TTL systems.
- Q: What package is available?
- A: It comes in a 14-pin TSSOP package (0.173" width).
74HCT125PW,112.pdf
- Q: What is the logic family of the 74HCT125PW?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL-compatible inputs) logic family.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared buses.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V TTL systems.
- Q: What package is available?
- A: It comes in a 14-pin TSSOP package (0.173" width).