The SN74LS165ADRG4 is a high-performance, 8-bit parallel-load serial-out shift register designed and manufactured by Texas Instruments. This integrated circuit is part of the 74LS family, which is known for its low-power Schottky technology. It is particularly suited for interfacing with systems that require the conversion of parallel data to serial format, making it an essential component in various digital applications.

Key Features

• Parallel-Load Capability: The SN74LS165ADRG4 allows for the simultaneous loading of 8 bits of data, which can then be serially shifted out at a rate determined by the user.
• Serial Output: Data is serially shifted out of the register on the falling edge of the serial clock input, allowing for seamless integration with microprocessors and digital systems.
• Direct Overriding Clear: Equipped with a clear function, the register can be reset to zero, regardless of the clock input or parallel load signal, providing an immediate and efficient way to clear the register.
• Wide Operating Voltage: The device operates at a voltage range of 4.75V to 5.25V, making it versatile for use in standard TTL environments.
• High-Speed Operation: With a typical shift frequency of 25 MHz, this component is capable of high-speed data transfer, which is crucial for time-sensitive applications.
• Multiple Package Options: The SN74LS165ADRG4 is available in a 16-pin SOIC package, providing a compact solution for space-constrained applications.

Applications

The SN74LS165ADRG4 is widely used in digital systems where the conversion of parallel data to serial data is necessary. Typical applications include:

• Data acquisition systems
• Instrumentation and test equipment
• Microprocessor-based systems
• Communication systems
• Remote control interfaces

With its robust feature set and reliable performance, the SN74LS165ADRG4 from Texas Instruments is an ideal choice for designers looking to enhance the efficiency and functionality of their digital systems.