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| Product attributes | Property Value |
| Manufacturer | NXP USA Inc. |
| Product Series | 74VHCT |
| 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 | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SO |
The 74VHCT244D is an octal buffer from NXP, designed for 5V TTL-compatible systems. It operates from 4.5V to 5.5V and provides 8mA of output current per channel. The 3-State outputs enable bus isolation, while the non-inverting configuration preserves signal polarity. Packaged in a 20-SOIC, this IC is ideal for memory driving, industrial controls, and automotive applications requiring robust buffering.
- 5V TTL-Compatible Inputs: Directly interfaces with TTL logic without level conversion.
- Wide Temperature Range (-40°C to 125°C): Suitable for automotive and industrial environments.
- 3-State Outputs: Allows multiple devices to share a bus safely.
- Proven 20-SOIC Package: Easy to solder and widely available.
5V TTL Bus Buffering
The 74VHCT244D is designed for 5V systems, buffering TTL-level signals in legacy industrial equipment and ensuring compatibility with older microprocessors.
Memory Address Line Drivers
Use this buffer to drive memory address lines in 5V systems, providing 8mA output current to handle capacitive loads from multiple memory chips.
Peripheral Interface Isolation
Its 3-State outputs allow disconnecting peripherals from the data bus when not in use, preventing bus conflicts in microcontroller-based designs.
Automotive ECU Signal Conditioning
With a temperature range of -40°C to 125°C, this buffer is suitable for automotive engine control units, buffering sensor signals to the ECU processor.
Industrial PLC Output Modules
In programmable logic controllers, this IC buffers output signals to relays and actuators, providing the necessary drive strength and noise immunity.
Test and Measurement Equipment
For benchtop instruments, the 74VHCT244D buffers measurement signals to display or recording circuits, maintaining signal fidelity in 5V environments.
- Q: What is the logic family of the 74VHCT244D?
- A: It belongs to the 74VHCT family, which is TTL-compatible high-speed CMOS.
- Q: What is the function of this IC?
- A: It is an octal buffer with non-inverting outputs.
- Q: How many channels does it have?
- A: It has 2 channels of 4 bits each (8 total).
- Q: What is the output type?
- A: It features 3-State outputs.
- Q: What is the supply voltage range?
- A: It operates from 4.5V to 5.5V.
- Q: What package is available?
- A: It comes in a 20-SOIC package.
74VHCT244D,118.pdf
- Q: What is the logic family of the 74VHCT244D?
- A: It belongs to the 74VHCT family, which is TTL-compatible high-speed CMOS.
- Q: What is the function of this IC?
- A: It is an octal buffer with non-inverting outputs.
- Q: How many channels does it have?
- A: It has 2 channels of 4 bits each (8 total).
- Q: What is the output type?
- A: It features 3-State outputs.
- Q: What is the supply voltage range?
- A: It operates from 4.5V to 5.5V.
- Q: What package is available?
- A: It comes in a 20-SOIC package.