STMicroelectronics HCF4094: 8-Stage Shift-and-Store Bus Register

The HCF4094 from STMicroelectronics is a versatile, integrated circuit that encompasses an 8-stage shift-and-store bus register with three-state outputs. This IC is designed for applications in serial-to-parallel data conversion, and it is widely utilized in a variety of digital systems for its reliability and functionality. The device operates over a broad voltage range from 3V to 15V and is available in a variety of packages, including DIP and SOIC, making it suitable for both through-hole and surface-mount technology (SMT).

Key Features

• 8-Bit Serial-In/Parallel-Out Shift Register: The HCF4094 allows for serial input to be converted into parallel output, making it ideal for expanding the input/output capabilities without increasing the number of I/O pins on a microcontroller.
• Three-State Outputs: Each output can be set to a logical high, logical low, or high impedance, which is essential for bus-oriented applications where multiple devices may need to share the same output lines.
• Sequential Storage: The register provides the option to store data in a sequential manner with each clock pulse, facilitating the creation of delay lines and data storage elements within a circuit.
• Wide Operating Voltage Range: The device's broad voltage range ensures compatibility with various logic levels and systems ranging from low-voltage battery-powered applications to standard 5V logic and up to 15V industrial levels.
• Flexible Clocking Options: The HCF4094 can be clocked from either the positive-going or negative-going edge of the clock pulse, providing versatility in interfacing with different types of microcontrollers or digital logic systems.

Applications

The HCF4094 is ideally suited for a wide range of applications, such as:

• LED displays and LED panel drivers
• Signal processing and waveform generation
• Data acquisition systems
• Microcontroller interface expansion
• Remote control systems

With its robust design and flexible functionality, the HCF4094 from STMicroelectronics is a great choice for designers looking to implement efficient data handling and storage solutions in their digital projects.