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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74HC |
| 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 | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| 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-SOIC |
| ROHS |  |
The MC74HC125AFL1 is a quad non-inverting buffer from onsemi's 74HC logic family. It features four independent buffers with 3-State outputs, making it ideal for bus-oriented applications. The device operates over a wide voltage range of 2V to 6V, ensuring compatibility with various logic standards. Each output can drive up to 7.8mA, suitable for LEDs and other loads. Packaged in a 14-pin SOIC (0.209" width), it is designed for robust performance. Its wide operating temperature range of -55°C to 125°C makes it suitable for industrial and automotive environments.
- Wide Operating Voltage (2V to 6V): Ensures compatibility with TTL, CMOS, and other logic families, simplifying system design.
- 3-State Outputs: Allows for bus sharing and prevents data corruption in multi-device systems.
- High Noise Immunity: The 74HC family offers excellent noise margins, ensuring reliable operation in noisy industrial environments.
- Extended Temperature Range: Rated for -55°C to 125°C, suitable for harsh automotive and industrial applications.
Microprocessor Bus Buffering
Use the MC74HC125AFL1 to buffer the address and data buses of a microprocessor. The 3-State outputs allow multiple peripherals to share the bus without interference, improving system reliability.
Interfacing 5V Logic to Higher Voltage Systems
With an operating range up to 6V, this buffer can interface 5V logic to systems operating at 6V, such as some industrial sensors and actuators, providing a simple level-shifting solution.
Driving Multiple Loads in Industrial Controls
In industrial control systems, this buffer can drive multiple relays, LEDs, or other logic inputs. The 7.8mA output current is sufficient for these loads, and the wide temperature range ensures reliability.
Memory Expansion in Legacy Systems
For systems using 5V logic, this buffer can be used to expand memory by buffering address lines to additional memory chips. The 3-State outputs facilitate bank switching.
Signal Isolation in Test Equipment
The 3-State feature is ideal for test equipment, allowing signals to be connected or disconnected from a measurement bus under program control, enabling automated testing.
General Purpose Logic Interfacing
As a general-purpose buffer, it can be used to clean up noisy signals, increase fan-out, or isolate different sections of a circuit, making it a versatile component in any designer's toolkit.
- Q: What is the logic family of the MC74HC125AFL1?
- A: It belongs to the 74HC (High-Speed CMOS) family, offering a good balance of speed and power.
- 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 systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing them to be disabled (high-impedance) for multiplexing on a shared bus.
- Q: What is the operating voltage range?
- A: It operates over a wide range of 2V to 6V, making it compatible with TTL, CMOS, and other logic families.
- Q: What is the package?
- A: It is available in a wider 14-pin SOIC package (0.209" width), often used for higher power dissipation.
- Q: What is the output current capability?
- A: Each output can source or sink 7.8mA, providing adequate drive for most logic loads.
MC74HC125AFL1.pdf
- Q: What is the logic family of the MC74HC125AFL1?
- A: It belongs to the 74HC (High-Speed CMOS) family, offering a good balance of speed and power.
- 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 systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing them to be disabled (high-impedance) for multiplexing on a shared bus.
- Q: What is the operating voltage range?
- A: It operates over a wide range of 2V to 6V, making it compatible with TTL, CMOS, and other logic families.
- Q: What is the package?
- A: It is available in a wider 14-pin SOIC package (0.209" width), often used for higher power dissipation.
- Q: What is the output current capability?
- A: Each output can source or sink 7.8mA, providing adequate drive for most logic loads.