74HCT4094D,118

The 74HCT4094D,118 is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) shift register manufactured by Nexperia. It is part of the 74HCT series, which is designed to be compatible with TTL (Transistor-Transistor Logic) levels while providing the advantages of CMOS technology, such as lower power consumption and higher noise immunity.

Key Features:

1. Functionality: The 74HCT4094D is an 8-bit shift register with a serial input and parallel output. It allows for the shifting of data bits either to the left or right, making it useful for data storage and manipulation in digital circuits.

2. Pin Configuration: The device typically comes in a 16-pin dual in-line package (DIP) or surface-mount package (SOIC). The pins include:

   • Serial Input (DS): The data input for shifting in new bits.
   • Clock Input (CLK): The clock signal that controls the shifting operation.
   • Shift/Load Control (SH/LD): A control pin that determines whether the device is in shift mode or load mode.
   • Parallel Outputs (Q0 to Q7): The outputs that provide the stored data bits.
   • Reset (MR): An active-low reset pin that clears the register.

3. Electrical Characteristics:

   • Supply Voltage (VCC): Typically operates at 4.5V to 5.5V, making it suitable for standard digital logic applications.
   • Input Voltage Levels: Compatible with TTL logic levels, allowing for easy interfacing with other digital components.
   • Propagation Delay: Fast switching times, typically in the range of nanoseconds, which makes it suitable for high-speed applications.

4. Operating Conditions: The device is designed to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

5. Applications: The 74HCT4094D is commonly used in various applications, including:

   • Data storage and transfer in digital systems.
   • Serial-to-parallel conversion.
   • Shift register applications in communication systems.
   • LED driving and control circuits.

6. Package Type: The "D" in the part number indicates a specific package type, which is usually a small outline IC (SOIC) or a dual in-line package (DIP), making it easy to integrate into various circuit designs.

Summary:

The 74HCT4094D,118 from Nexperia is a versatile and efficient 8-bit shift register that combines the benefits of CMOS technology with TTL compatibility. Its ability to shift data serially and output it in parallel makes it a valuable component in digital electronics, suitable for a wide range of applications from simple data handling to complex communication systems.