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| Product attributes | Property Value |
| Manufacturer | Nexperia USA Inc. |
| Product Series | 74ALVC |
| Packaging | Tape & Reel (TR) | |
| 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 | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 14-SO |
The 74ALVC125D is a quad non-inverting buffer from Nexperia's 74ALVC family, featuring 3-state outputs for bus-oriented applications. It operates from 1.65V to 3.6V and can source or sink 24mA per channel, making it suitable for driving high-capacitance loads. Each of the 4 channels has an independent output enable, providing flexible control in multiplexed systems. The 14-SOIC package is widely used in industrial and telecom equipment. Typical applications include memory buffering, level shifting, and bus interfacing in servers, PLCs, and networking hardware.
- High Drive Current (24mA): Can drive long traces and multiple loads, improving signal integrity in complex systems.
- 3-State Outputs: Enables bus sharing and multiplexing without external tristate buffers, reducing component count.
- Wide 1.65V to 3.6V Supply: Compatible with 1.8V, 2.5V, and 3.3V logic, simplifying mixed-voltage designs.
- High-Speed Operation: 74ALVC family offers low propagation delay, ideal for high-frequency bus applications.
- Standard SOIC Package: Easy to manufacture and widely available, reducing assembly costs.
High-Speed Bus Interfacing
The 74ALVC125D's 3-state outputs and 24mA drive capability make it ideal for connecting multiple peripherals to a shared data bus in computing and networking equipment.
Memory Address Buffering
In SRAM or flash memory systems, this buffer provides the necessary fan-out and signal integrity for address lines, operating at 1.65V-3.6V to match modern memory interfaces.
Level Shifting for 1.8V to 3.3V
With its wide supply range, it can translate signals between low-voltage ASICs and 3.3V peripherals, simplifying mixed-voltage board designs.
Backplane and Server Applications
The high drive current (24mA) and fast propagation delay make it suitable for buffering control signals in server backplanes, ensuring reliable communication between boards.
Industrial PLC I/O Modules
In programmable logic controllers, the 3-state outputs allow multiple modules to share a common I/O bus, with the buffer providing isolation and signal conditioning.
Telecom Line Cards
For telecom infrastructure, this buffer handles high-speed control signals between line interface units and switching fabrics, maintaining signal integrity over long traces.
- Q: What logic family does the 74ALVC125D belong to?
- A: It is part of the 74ALVC (Advanced Low-Voltage CMOS) family, optimized for high-speed, low-voltage operation.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, allowing bus isolation and multiplexing.
- Q: How many channels are available?
- A: It contains 4 independent buffer channels, each with its own output enable control.
- Q: What is the output type?
- A: The outputs are 3-State, meaning they can be high, low, or high-impedance (Hi-Z) for bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, supporting 1.8V, 2.5V, and 3.3V logic levels.
- Q: What package is this available in?
- A: It comes in a 14-SOIC (0.154-inch width) package, a standard surface-mount option for industrial PCBs.
74ALVC125D,118.pdf
- Q: What logic family does the 74ALVC125D belong to?
- A: It is part of the 74ALVC (Advanced Low-Voltage CMOS) family, optimized for high-speed, low-voltage operation.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, allowing bus isolation and multiplexing.
- Q: How many channels are available?
- A: It contains 4 independent buffer channels, each with its own output enable control.
- Q: What is the output type?
- A: The outputs are 3-State, meaning they can be high, low, or high-impedance (Hi-Z) for bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, supporting 1.8V, 2.5V, and 3.3V logic levels.
- Q: What package is this available in?
- A: It comes in a 14-SOIC (0.154-inch width) package, a standard surface-mount option for industrial PCBs.