The TC74ACT164FT is an 8-bit serial-in, parallel-out shift register. Data is entered serially through one of two inputs (DSA or DSB); either input can be used as an enable input for the other. Data is shifted one place to the right on each rising edge of the clock (CLK) input. A clear (CLR) input allows for asynchronous clearing of the register, setting all outputs to a low state, independent of the clock and serial data inputs.

Applications

• Serial-to-parallel data conversion
• Remote control systems
• Display driving
• Keyboard scanning
• Data acquisition systems

Features

• Serial data inputs (DSA, DSB)
• Asynchronous clear input (CLR)
• Parallel outputs (QA - QH)
• High-speed operation
• TTL compatible inputs

Benefits

• Efficient serial-to-parallel data conversion
• Simplified interface for serial data streams
• Flexible control with asynchronous clear
• High-speed performance for fast data transfer

Additional Details

The TC74ACT164FT is supplied in a 14-pin SOIC package. The register is cleared when the CLR input is held low. Data at the DSA and DSB inputs is entered on the rising edge of the clock pulse. If both DSA and DSB are high, data is shifted into the register. If one or both inputs are low, a low level is shifted in. The parallel outputs (QA through QH) reflect the state of the register at any given time. The device operates over a supply voltage range of 4.5V to 5.5V. This part is commonly used for applications where data needs to be transmitted serially over a single wire and then converted to parallel data for processing or display.