The TC74HC164AP is a high-speed CMOS 8-bit serial-in/parallel-out shift register manufactured by Toshiba Semiconductor and Storage. This device is designed for applications requiring serial-to-parallel data conversion, such as display drivers, data acquisition systems, and keyboard encoders.

Applications

• Display drivers for LED displays and LCD panels.
• Data acquisition systems for converting serial data to parallel data.
• Keyboard encoders for converting key presses to binary codes.
• Serial communication receivers for parallelizing incoming serial data.
• Remote control systems for decoding serial commands.

Features

• Data Input: Serial data input (DSA, DSB)
• Outputs: 8 parallel outputs (Q0-Q7)
• Clock Input: Positive-edge triggered clock input
• Clear Input: Asynchronous clear input
• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to 85°C
• Package Options: 14-Pin DIP

Benefits

• High Speed: Fast operation enables high-speed data transfer.
• Serial-to-Parallel Conversion: Converts serial data to parallel data for easy processing.
• Asynchronous Clear: Allows for immediate clearing of the register.
• Wide Operating Voltage Range: Can operate from 2V to 6V, providing flexibility in system design.
• Easy to Use: Standard pinout simplifies integration into existing circuits.

The TC74HC164AP features two serial data inputs (DSA and DSB) which are ANDed together internally. The data at the serial input is shifted into the register on the positive-going edge of the clock pulse. The eight parallel outputs (Q0-Q7) provide access to the data stored in the register. An asynchronous clear input allows the register to be cleared at any time, regardless of the clock signal. The device operates over a wide temperature range (-40°C to 85°C), making it suitable for use in a variety of environments. The wide supply voltage range (2V to 6V) provides flexibility in system design. The standard 14-Pin DIP package facilitates easy integration into existing circuits. The outputs are capable of driving a moderate number of standard TTL loads. The device is commonly used in applications where data needs to be transmitted serially over a long distance and then converted to parallel form for processing.