NXP 74HC368 Hex Inverting Buffer/Line Driver with 3-State Outputs

The NXP 74HC368 is a high-speed Si-gate CMOS device that is a part of the 74HC family, known for its robust performance and compatibility with TTL (Transistor-Transistor Logic). The product is designed to offer a hex inverting buffer/line driver with 3-state outputs, making it an essential component for a wide range of digital applications.

This integrated circuit features six inverting buffers with high-current 3-state outputs which can interface with bus lines or buffer memory address registers. The 3-state outputs are controlled by two output enable (OE) inputs. When the OE input is high, the output is in a high-impedance state, which effectively disconnects the output from the circuit, allowing for bus-oriented applications.

The 74HC368's inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of V<sub>CC. This is particularly useful in mixed-voltage applications where the device can help in interfacing 5V and 3.3V logic systems.

Key features of the NXP 74HC368 include:

• Hex inverting buffers with 3-state outputs.
• High noise immunity and low power dissipation typical of CMOS devices.
• Compatibility with TTL logic levels.
• Input levels:
  • For 74HC368: CMOS level
• Output capability: bus driver
• ICC category: MSI

The device is packaged in a 16-pin DIP (Dual In-line Package), making it suitable for breadboard prototyping and traditional through-hole PCB designs. The 74HC368 is also available in other package types to suit various assembly and space requirements.

Applications of the NXP 74HC368 are diverse, ranging from memory address driving to bus-oriented systems where multiple devices need to share a common data path. Its ability to isolate the bus lines during high-impedance states, coupled with its high drive capabilities, makes it a versatile choice for designers looking to create flexible and reliable digital systems.

With its combination of high-speed performance, robust 3-state outputs, and compatibility with existing logic levels, the NXP 74HC368 is an excellent choice for implementing inverting buffer or line driver functions in your digital applications.