74LV165PW,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: Serial-in, parallel-out shift register with synchronous operation
• Package: TSSOP-16
• Essence: Data storage and transfer device
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Input Capacitance: 3.5pF
• Output Capacitance: 6pF
• Maximum Clock Frequency: 100MHz
• Number of Bits: 8

Detailed Pin Configuration

1. SER (Serial Data Input)
2. QH' (Serial Data Output)
3. CP (Clock Pulse Input)
4. MR (Master Reset Input)
5. SH/LD (Shift/Load Input)
6. QA-QH (Parallel Data Outputs)
7. GND (Ground)
8. VCC (Supply Voltage)

Functional Features

• Serial data is input through the SER pin and shifted into the shift register on each positive clock edge.
• The SH/LD pin controls the shift or load mode of the register.
• In the shift mode, data is shifted through the register and appears at the parallel outputs.
• In the load mode, data from the serial input is loaded into the register and appears at the parallel outputs.
• The MR pin resets the register to its initial state.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for compatibility with various systems. - High clock frequency enables fast data transfer. - Small package size saves board space. - Synchronous operation ensures reliable data transfer.

Disadvantages: - Limited number of bits (8) may not be sufficient for certain applications. - Input and output capacitance may affect signal integrity in high-speed applications.

Working Principles

The 74LV165PW,118 is a synchronous shift register that stores and transfers data. It operates based on the clock input and can function in either shift or load mode. In the shift mode, data is shifted through the register, while in the load mode, data from the serial input is loaded into the register. The parallel outputs provide access to the stored data.

Detailed Application Field Plans

1. Serial-to-Parallel Conversion: The shift register can be used to convert serial data into parallel format, enabling easy interfacing with other devices.
2. Data Storage and Transfer: It can be employed in applications where temporary storage and transfer of data is required, such as in communication systems or microcontrollers.
3. LED Matrix Control: By connecting the parallel outputs to the rows or columns of an LED matrix, the shift register can control the display of patterns or characters.

Detailed and Complete Alternative Models

• SN74LV165A: Similar shift register with 8-bit parallel outputs and asynchronous reset.
• CD4015B: Dual 4-stage static shift register with parallel outputs.
• 74HC595: 8-bit serial-in, serial/parallel-out shift register with latched outputs.

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