Product Overview: 74LV165DB from NXP

The 74LV165DB is a high-performance, low-voltage Si-gate CMOS device that is part of NXP Semiconductors' advanced logic family. This 8-bit parallel-load, serial-out shift register is designed to operate at a 3.3V power supply, making it suitable for interfacing with low-voltage microprocessors and microcontrollers in a wide range of digital applications.

Key Features

• 8-bit serial shift register with parallel input.
• Operating voltage range of 2.0V to 5.5V.
• High-speed throughput: 50 MHz shift-out frequency at 5V.
• Low power consumption: 20 µA (max) I<sub>CC at 25°C.
• Direct interface with TTL levels at 5V.
• Complies with JEDEC standard no. 7A requirements.
• Input levels:
  • For 74LV: VIH = 2.0V (min), VIL = 0.8V (max)
  • For 74LVT: VIH = VCC x 0.7 (min), VIL = VCC x 0.3 (max)
• Output capability: Standard.
• Multiple package options: SO16, SSOP16, TSSOP16, DHVQFN16.
• ESD protection:
  • HBM JESD22-A114E exceeds 2000V.
  • MM JESD22-A115-A exceeds 200V.

Applications

The 74LV165DB is ideal for use in a variety of digital systems where low power and high speed are required. It is commonly used in:

• Data acquisition systems.
• Instrumentation and control systems.
• Communication systems.
• Processors and microcontroller expansion.

Product Description

The device features an 8-bit shift register that can take a parallel input and convert it to a serial output. This allows for the expansion of input ports on a microcontroller or microprocessor by consolidating multiple inputs into a single serial data line. The 74LV165DB also offers a direct clear function, which is synchronous to the clock and can be used to clear the shift register.

The robust design of the 74LV165DB ensures that it is capable of withstanding significant electrostatic discharge, providing reliability and stability in your electronic designs. With its broad operating voltage range and compatibility with TTL levels, this shift register from NXP is a versatile component for your digital logic projects.