74HCT165PW,118

The 74HCT165PW,118 is a high-speed, low-power 8-bit shift register integrated circuit (IC) manufactured by Nexperia. It is part of the 74HCT family, which is designed to be compatible with TTL (Transistor-Transistor Logic) levels while operating at lower power levels. Here’s a detailed description of its features and specifications:

General Features:

• Type: 8-bit Shift Register
• Package: The "PW" in the part number indicates that it comes in a TSSOP (Thin Shrink Small Outline Package) with 16 pins, which is compact and suitable for space-constrained applications.
• Pin Count: 16 pins
• Supply Voltage: Operates typically at 5V, making it compatible with standard TTL logic levels.
• Logic Family: HCT (High-speed CMOS TTL-compatible)

Functional Description:

• Shift Register Functionality: The 74HCT165 is designed to shift data in a serial manner. It can take in 8 bits of data serially and output them in parallel. This is useful for applications where data needs to be transferred from a serial source to a parallel output.
• Data Input: The device has a serial data input (DS) pin where the data bits are fed in. The data is shifted into the register on the rising edge of the clock signal (CLK).
• Parallel Output: The 8 bits of data can be accessed simultaneously from the parallel output pins (Q0 to Q7), allowing for easy interfacing with other digital circuits.
• Control Pins: It includes control pins such as:
  • Clock (CLK): Triggers the shifting of data.
  • Latch Enable (LE): Controls when the data is latched to the output.
  • Output Enable (OE): Allows for enabling or disabling the output, which is useful for tri-state applications.

Electrical Characteristics:

• Input Voltage Levels: Compatible with TTL input levels, allowing for easy interfacing with other TTL devices.
• Output Drive Capability: Can drive standard TTL loads, making it suitable for a variety of applications.
• Propagation Delay: Fast switching times, typically in the range of nanoseconds, which is beneficial for high-speed applications.

Applications:

• Data Communication: Used in applications where data needs to be shifted from one format to another, such as in communication interfaces.
• Microcontroller Interfacing: Commonly used to expand the number of output pins available from a microcontroller by converting serial data to parallel output.
• LED Control: Can be used to control multiple LEDs in a compact manner by shifting data to control their states.

Package Information:

• Dimensions: The TSSOP package is compact, typically measuring around 4.4 mm x 3.0 mm, making it suitable for modern electronic designs where space is a premium.
• Thermal Characteristics: Designed to operate within a specified temperature range, ensuring reliability in various environmental conditions.

Conclusion:

The 74HCT165PW,118 from Nexperia is a versatile and efficient 8-bit shift register that provides a reliable solution for data shifting and interfacing in digital circuits. Its compatibility with TTL levels, compact package, and fast operation make it an ideal choice for a wide range of electronic applications.