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| Product attributes | Property Value |
| Manufacturer | Nexperia USA Inc. |
| Product Series | 74VHC |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-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 ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-DHVQFN (4.5x2.5) |
The 74VHC244BQ,115 from Nexperia is a dual non-inverting buffer in the 74VHC very high-speed CMOS logic family. It features two independent buffer channels with 3-State outputs, ideal for bus-oriented applications. The device operates from 2V to 5.5V, making it compatible with both 3.3V and 5V systems. Each output can sink or source 8mA, providing adequate drive for typical logic loads. The 20-pin VFQFN package with exposed pad offers excellent thermal performance and is suitable for high-density PCB designs. This buffer is commonly used in bus interfacing, signal buffering, and automotive applications.
- Wide 2V to 5.5V Supply Range: Compatible with both 3.3V and 5V logic systems.
- High Output Current (8mA): Provides sufficient drive for LEDs and multiple logic inputs.
- Extended Temperature Range (-40°C to 125°C): Suitable for automotive and industrial applications.
- Exposed Pad Package: Enhances thermal dissipation for reliable operation.
High-Speed Bus Interfacing
The 74VHC244BQ is designed for high-speed applications, operating from 2V to 5.5V. Its 8mA output current and fast propagation delay make it ideal for buffering high-frequency signals on data buses.
Memory Address and Data Line Buffering
In memory systems, this buffer can isolate the memory array from the system bus. The 3-State outputs are essential for read/write operations where the memory must be disconnected from the bus when not selected.
Level Shifting Between 3.3V and 5V Systems
With a wide supply range, the 74VHC244BQ can be powered from a 3.3V rail to buffer 3.3V logic signals, or from a 5V rail to buffer 5V signals. This flexibility simplifies interfacing between different voltage domains.
Driving LEDs and Low-Power Loads
The 8mA sink/source capability is sufficient to drive standard LEDs with a series resistor. The non-inverting buffer configuration simplifies the logic design, as the output state matches the input state.
Industrial Control Input/Output Expansion
In industrial control systems, the 74VHC244BQ can buffer sensor signals or control signals over longer traces. The 3-State feature allows multiple sensors to share a single ADC input line, reducing the number of I/O pins required on a microcontroller.
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.
- Q: What is the logic family of the 74VHC244BQ?
- A: It belongs to the 74VHC (Very High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a dual (2-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 2 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 2V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin VFQFN package with exposed pad.
74VHC244BQ,115.pdf
- Q: What is the logic family of the 74VHC244BQ?
- A: It belongs to the 74VHC (Very High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a dual (2-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 2 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 2V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin VFQFN package with exposed pad.