The BU4094BCFV is an 8-stage shift/store bus register manufactured by Rohm Semiconductor. It combines the functions of both serial shift register and a storage register, along with tri-state outputs, providing versatile data handling capabilities.

Applications:

• Remote Control Systems: Used to transmit control signals over a bus to remotely located devices.
• Display Drivers: Drives LED or LCD displays by controlling individual segments or pixels.
• Industrial Control Systems: Sequentially controls various processes in automated machinery.
• Data Acquisition Systems: Gathers data from multiple sources and stores it for further processing.

Features:

• 8-Stage Shift Register: Stores 8 bits of serial data.
• Storage Register: Latches the data from the shift register for parallel output.
• Tri-State Outputs: Allows multiple devices to share a common bus.
• Cascadable: Multiple devices can be cascaded for larger shift register applications.
• Wide Operating Voltage Range: Operates from 3V to 16V.

Benefits:

• Reduced Component Count: Combines shift and storage functions into a single chip, simplifying circuit design.
• Flexible Data Handling: Enables both serial and parallel data access.
• Bus Compatibility: Tri-state outputs allow for easy integration with bus-oriented systems.
• Scalable Design: Cascading capability allows for expanding the register size as needed.
• Reliable Operation: Wide operating voltage ensures robust performance in varying conditions.

Additional Details:

The BU4094BCFV is commonly used in applications requiring serial-to-parallel data conversion, remote control, and display driving. The device accepts serial data input and shifts it through the 8 stages on the rising edge of the clock signal. Data is transferred from the shift register to the storage register when the strobe input is high. The output enable input controls the tri-state outputs, allowing them to be either high, low, or high-impedance. It is available in a SOP-16 package.