74HCT165D,653

The 74HCT165D,653 is an 8-bit parallel-in/serial-out (PISO) shift register from Nexperia. It facilitates the conversion of parallel data into serial data streams and vice versa, making it ideal for applications requiring serial data transfer between devices.

Key Features:

• Parallel to Serial Conversion: Converts 8 parallel inputs into a serial output.
• Serial Data Input (DS): Allows serial data input for cascading multiple devices.
• Serial Clock Input (SH_CP): Controls the shifting of data bits on the rising edge of the clock signal.
• Output Enable Input (OE): Enables or disables the serial output for data transfer.
• Cascadable: Multiple devices can be cascaded for extended parallel input capability.
• Wide Operating Voltage Range: Supports operation from 2V to 6V, making it versatile for different logic levels.
• High Speed: Capable of handling clock frequencies up to 25 MHz (typical).
• Latch-Up Performance: Designed to prevent latch-up when inputs exceed the supply voltage range.

Applications:

• Shift Registers: Used in microcontroller and microprocessor interfacing for data transfer.
• Parallel to Serial Conversion: Converts data from parallel sensors or switches into a serial stream for transmission.
• Serial Data Communication: Interfaces with serial communication protocols such as SPI (Serial Peripheral Interface) and UART (Universal Asynchronous Receiver-Transmitter).
• Data Logging: Enables serial data capture and logging in embedded systems.
• LED Matrix Displays: Drives rows or columns of LEDs in matrix displays using serial data.
• Input Expansion: Increases the number of input ports available to microcontrollers with limited I/O pins.