The HD74HC164FPEL-E is an 8-bit serial-in/parallel-out shift register manufactured by Renesas Electronics America. It belongs to the HC (High-speed CMOS) family of logic ICs, known for their low power consumption and high-speed operation. This shift register is commonly used in applications requiring serial-to-parallel data conversion, such as display drivers, data acquisition systems, and control circuits.

Applications:

• Display Drivers: Controlling LEDs, LCDs, and other display devices.
• Data Acquisition Systems: Converting serial data from sensors or other sources into parallel format for processing.
• Control Circuits: Implementing sequential control logic and timing circuits.
• Keyboard Scanners: Scanning keyboard inputs and converting them into parallel data.
• Memory Addressing: Generating address signals for memory devices.

Features:

• Number of Bits: 8-bit shift register.
• Logic Family: HC (High-speed CMOS) logic.
• Serial Input: Single serial data input (A and B inputs are tied together internally).
• Parallel Outputs: Eight parallel outputs (Q0-Q7).
• Clock Input: Positive-edge triggered clock input.
• Clear Input: Asynchronous clear input (CLR).
• Operating Voltage: 2V to 6V operating voltage range.

Benefits:

• High Speed: Fast switching speeds for high-performance applications.
• Low Power Consumption: CMOS technology minimizes power consumption.
• Wide Operating Voltage Range: Flexible operating voltage range accommodates various system requirements.
• Easy to Use: Simple serial-in/parallel-out architecture simplifies circuit design.
• Reliable Performance: Renesas is a reputable manufacturer known for quality and reliability.

Additional Details:

The HD74HC164FPEL-E comes in a SOP (Small Outline Package). The 'FPEL' designation likely specifies the package type and lead finish. The shift register operates by shifting data bits into the register on each positive edge of the clock signal. The data at the serial input (A and B tied together) is shifted into the first stage, and the existing data in each stage is shifted to the next stage. The parallel outputs (Q0-Q7) provide the current state of the register. The asynchronous clear input (CLR) allows for resetting the register to all zeros, regardless of the clock signal. This device is compatible with other HC family logic devices and can be easily integrated into digital circuits. Datasheets and application notes are readily available from Renesas, providing detailed information on the device's electrical characteristics, timing specifications, and application examples.