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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74VHC |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
The MC74VHC240DW from onsemi is an inverting buffer in the 74VHC logic family. It features 3-state outputs with 8mA drive capability, operating from 2V to 5.5V. The 20-pin SOIC package is suitable for standard PCB assembly. This buffer is designed for bus-oriented applications requiring signal inversion, such as memory decoding, level shifting, and industrial control systems. Its wide voltage range makes it versatile for both 3.3V and 5V designs.
- Wide 2V to 5.5V Supply Range: Compatible with 3.3V and 5V logic, reducing design complexity.
- Inverting Outputs: Provides signal inversion without additional components, saving board space.
- 3-State Outputs: Enables bus sharing and isolation, improving system flexibility.
- High-Speed CMOS: Ensures fast propagation delays for high-frequency applications.
Inverting Bus Buffers in 5V Systems
The MC74VHC240DW provides inverting buffering for 5V buses, useful in legacy industrial equipment where signal inversion is required.
3-State Output for Memory Address Decoding
Use it to buffer and invert address lines, with 3-state control to disable outputs during memory idle states.
Level Shifting with Inversion in Mixed-Voltage Boards
It can translate 3.3V signals to 5V while inverting, simplifying logic design in mixed-voltage systems.
Driving Peripheral Devices in Automotive ECUs
The 8mA output can drive indicator LEDs or small relays, with inversion to match active-low logic.
Signal Conditioning for Sensor Interfaces
In industrial sensors, it can buffer and invert signals to match controller logic, improving noise margins.
Clock Inversion for Differential Signaling
Use it to generate complementary clock signals for differential pairs, ensuring proper timing in high-speed designs.
- Q: What logic family does the MC74VHC240DW belong to?
- A: It is part of the 74VHC family, offering high-speed CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 3-state outputs, used for signal inversion and bus driving.
- Q: How many channels does it have?
- A: It has 2 channels (octal inverting buffer with 8 bits, listed as 2 channels in this context).
- Q: What is the output type?
- A: The outputs are 3-State, allowing high-impedance states for bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, supporting both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin SOIC package (7.50mm width), suitable for standard PCB layouts.
MC74VHC240DW.pdf
- Q: What logic family does the MC74VHC240DW belong to?
- A: It is part of the 74VHC family, offering high-speed CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 3-state outputs, used for signal inversion and bus driving.
- Q: How many channels does it have?
- A: It has 2 channels (octal inverting buffer with 8 bits, listed as 2 channels in this context).
- Q: What is the output type?
- A: The outputs are 3-State, allowing high-impedance states for bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, supporting both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin SOIC package (7.50mm width), suitable for standard PCB layouts.