DM74165N

The IC component DM74165N is a 8-bit parallel-input/serial-output shift register. It is widely used in electronic circuitry for applications such as data storage, serial-to-parallel data conversion, and data transfer between different devices. Here are some key features and an overview of this component: 1. Input/Output: The DM74165N has 8 parallel inputs (D0-D7) that can be used to load data into the shift register. It also has a serial output (Q7) through which the shifted data can be read. 2. Synchronous Operation: The IC operates synchronously, meaning it shifts the data in response to a clock signal. The shifting starts when the Shift/Load (SH/LD) input is low and then occurs at each positive edge of the clock signal (CLK). The parallel inputs get loaded into the register when the SH/LD input is high. 3. Serial and Parallel Modes: The shift register can operate in both serial and parallel modes. In serial mode, the data is shifted out bit by bit from the Q7 output. In parallel mode, the stored data can be read simultaneously from the 8 parallel outputs (Q0-Q7). 4. Shift Direction Control: The shift direction can be controlled using the Shift Right/Left (SH/RL) input