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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74VHC |
| 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 | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 14-SOP |
| ROHS |  |
The MC74VHC125MEL is a high-speed quad non-inverting buffer from onsemi, designed for 2V to 5.5V operation. It features four independent channels with 3-state outputs, each capable of sourcing or sinking 8mA. This buffer is ideal for bus-oriented applications, signal conditioning, and level shifting in mixed-voltage digital systems. Its wide temperature range and standard SOIC package make it a versatile choice for both commercial and industrial electronics.
- High-Speed 74VHC Logic: Ensures minimal propagation delay for critical timing applications.
- Wide 2V to 5.5V Supply Range: Simplifies design by supporting both 3.3V and 5V logic levels.
- 3-State Outputs: Enables safe connection to shared buses, preventing data corruption.
- Extended Temperature Range (-55°C to 125°C): Suitable for demanding industrial and automotive environments.
Bus Interfacing and Isolation
The 3-state outputs allow the MC74VHC125MEL to be used for connecting multiple peripherals to a shared data bus. When not selected, the outputs enter a high-impedance state, preventing bus contention.
Signal Buffering for High-Speed Digital Lines
As a non-inverting buffer, it can regenerate weak digital signals, improving signal integrity over longer PCB traces or cables. The 74VHC family's high-speed performance ensures minimal propagation delay.
Level Shifting Between 3.3V and 5V Systems
With a wide operating voltage range of 2V to 5.5V, this buffer can be powered from a 3.3V rail while accepting 5V inputs, or vice versa, facilitating mixed-voltage system design.
Driving Multiple Loads
Each of the four channels can source or sink 8mA, making it suitable for driving multiple logic inputs or low-power LEDs, reducing the load on the primary controller.
Industrial Control Logic
The wide temperature range of -55°C to 125°C makes it suitable for harsh industrial environments, where it can buffer signals from sensors to a central PLC or microcontroller.
Memory Address Buffering
In memory systems, this buffer can be used to drive address lines to multiple memory chips, ensuring clean and synchronized signals without overloading the memory controller.
- Q: What is the logic family of the MC74VHC125MEL?
- A: The MC74VHC125MEL belongs to the 74VHC logic family, known for high-speed CMOS performance.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, ideal for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared data buses with high-impedance control.
- Q: What package is available?
- A: It comes in a 14-SOIC package with a width of 5.30mm.
- Q: What is the output current capability?
- A: It can source and sink 8mA of current per channel.
MC74VHC125MEL.pdf
- Q: What is the logic family of the MC74VHC125MEL?
- A: The MC74VHC125MEL belongs to the 74VHC logic family, known for high-speed CMOS performance.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, ideal for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared data buses with high-impedance control.
- Q: What package is available?
- A: It comes in a 14-SOIC package with a width of 5.30mm.
- Q: What is the output current capability?
- A: It can source and sink 8mA of current per channel.