The TC74VHC164FK(ELK) is an 8-bit serial-in, parallel-out shift register manufactured by Toshiba Semiconductor and Storage. It belongs to the VHC (Very High-Speed CMOS) family, offering high-speed operation and low power consumption, making it suitable for a wide range of digital logic applications.

Applications:

• Data Acquisition Systems: Used for serial-to-parallel data conversion in data acquisition interfaces.
• LED Displays: Employed for driving multiple LEDs in a sequential manner.
• Keypad Scanners: Used for scanning keypads and converting serial key presses to parallel data.
• Digital Logic Circuits: Implemented in general-purpose digital logic circuits for data manipulation and storage.
• Communication Interfaces: Used in serial communication interfaces for data transmission and reception.

Features:

• 8-Bit Serial-In, Parallel-Out: Converts serial data input to parallel data output.
• High-Speed Operation: VHC family offers high-speed performance.
• Low Power Consumption: CMOS technology minimizes power consumption.
• Wide Operating Voltage Range: Operates over a wide voltage range, making it versatile for various applications.
• Schmitt Trigger Inputs: Provides improved noise immunity.
• Surface Mount Package: Available in a small surface mount package (e.g., SOP or TSSOP) for efficient board space utilization.

Benefits:

• Simplified Data Conversion: Converts serial data to parallel data with minimal external components.
• High Performance: VHC family ensures high-speed operation for demanding applications.
• Reduced Power Consumption: CMOS technology minimizes power consumption, extending battery life in portable devices.
• Improved Noise Immunity: Schmitt trigger inputs enhance noise immunity, improving system reliability.
• Compact Design: Surface mount package allows for compact and efficient board layouts.

The TC74VHC164FK(ELK) operates with a supply voltage typically in the range of 2V to 5.5V. It features a serial data input (DSA and DSB), a clock input (CLK), and an asynchronous clear input (CLR). The parallel outputs (Q0-Q7) provide the converted parallel data. The device is designed to operate over a wide temperature range, making it suitable for various environments. The 'ELK' suffix usually denotes a specific packaging or tape and reel option.