74HC165D,652

The 74HC165D,652 is an 8-bit parallel-in/serial-out shift register from Nexperia, designed for high-speed digital applications. It is part of the 74HC (High-speed CMOS) family, which is known for its low power consumption and high-speed operation. Here’s a detailed description of its features and specifications:

General Features:

• Functionality: The 74HC165D allows for the parallel loading of data into its 8-bit register, which can then be shifted out serially. This makes it ideal for applications where multiple bits of data need to be read using fewer pins on a microcontroller or other digital devices.
• Data Input: The device has 8 parallel data inputs (D0 to D7) that can be loaded simultaneously when the load pin (PL) is activated.
• Serial Output: The data can be shifted out serially through a single output pin (Q7), which is useful for cascading multiple shift registers or for sending data to a microcontroller.
• Clock Input: The device features a clock input (CLK) that controls the shifting of data. On each rising edge of the clock, the data in the register is shifted to the right, with the most significant bit (MSB) being shifted out first.
• Control Pins: It includes control pins such as the Load (PL) and Shift (SH) pins, which manage the loading and shifting operations.

Electrical Characteristics:

• Supply Voltage: The 74HC165D operates typically at a supply voltage (Vcc) of 2V to 6V, making it compatible with a wide range of digital systems.
• Input and Output Voltage Levels: The device is designed to work with standard TTL logic levels, ensuring compatibility with other digital components.
• Propagation Delay: The typical propagation delay for the clock input to the output is low, allowing for fast data processing and transfer.

Package Information:

• Package Type: The 74HC165D,652 is available in a DIP-16 (Dual In-line Package) format, which is suitable for through-hole mounting on PCBs. It may also be available in other package types such as SOIC or TSSOP for surface mounting.
• Pin Configuration: The DIP-16 package has 16 pins, with specific pins designated for power supply, ground, data inputs, clock, load, and serial output.

Applications:

• Microcontroller Interfacing: The 74HC165D is commonly used in applications where a microcontroller needs to read multiple digital inputs while minimizing the number of I/O pins used.
• Data Acquisition: It can be used in data acquisition systems to convert parallel data from sensors into a serial format for processing.
• LED Control: The shift register can be used to control multiple LEDs by shifting data to turn them on or off in a serial manner.

Summary:

The 74HC165D,652 from Nexperia is a versatile and efficient 8-bit shift register that provides a simple solution for parallel-to-serial data conversion. Its low power consumption, high-speed operation, and compatibility with various digital systems make it a popular choice in many electronic designs.