The 74VHC164 is an 8-bit serial-in, parallel-out shift register manufactured by Fairchild/ON Semiconductor. This device features a serial data input (DSA and DSB), a clock input (CP), and a clear input (MR). Data at the DSA and DSB inputs are entered serially and shifted one bit position at each positive-going clock transition. The 74VHC164 provides eight parallel outputs (Q0-Q7) that reflect the current state of the shift register.

Applications:

• Serial-to-parallel data conversion
• Display drivers
• Data acquisition systems
• Keyboard scanning
• Digital delay lines

Features:

• 8-bit shift register
• Serial-in, parallel-out
• Positive-edge triggered clock
• Direct clear input
• High-speed operation
• Low power consumption

Benefits:

• Converts serial data into parallel data for efficient processing.
• Enables easy interfacing with parallel data systems.
• Allows asynchronous clearing of the register.
• Suitable for high-speed applications.
• Reduces power consumption in battery-powered devices.

Additional Details:

The 74VHC164 operates with a supply voltage range of 2V to 5.5V. It has a typical propagation delay of a few nanoseconds. The device is available in various packages, including DIP and SOIC. The operating temperature range is typically -40°C to +85°C. The clear input (MR) resets all flip-flops to a low state when asserted low, independent of the clock and data inputs.