CD74HCT165MT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: High-Speed, CMOS Logic, 8-Bit Serial-In/Parallel-Out
• Package: TSSOP-16
• Essence: Data storage and transfer
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 25 MHz
• Number of Bits: 8
• Serial Data Input: Single-ended
• Parallel Data Output: 8-bit

Detailed Pin Configuration

1. SER (Serial Data Input)
2. QH' (Serial Data Output)
3. GND (Ground)
4. QA (Parallel Data Output A)
5. QB (Parallel Data Output B)
6. QC (Parallel Data Output C)
7. QD (Parallel Data Output D)
8. QE (Parallel Data Output E)
9. QF (Parallel Data Output F)
10. QG (Parallel Data Output G)
11. QH (Parallel Data Output H)
12. MR (Master Reset)
13. SH/LD (Shift/Load)
14. CLK (Clock Input)
15. VCC (Supply Voltage)
16. NC (No Connection)

Functional Features

• Serial-to-Parallel Conversion
• High-Speed Operation
• CMOS Logic for Low Power Consumption
• Asynchronous Master Reset
• Shift or Load Mode Selectable

Advantages

• Compact size and high integration
• Easy interfacing with microcontrollers and other digital devices
• Versatile applications in various electronic systems
• Low power consumption

Disadvantages

• Limited number of parallel outputs (8 bits)
• Requires external clock signal for operation
• Sensitivity to noise and voltage fluctuations

Working Principles

The CD74HCT165MT is a high-speed CMOS shift register IC that performs serial-to-parallel conversion. It consists of an 8-bit shift register with a parallel output latch. The serial data input (SER) receives data bit by bit, which is then shifted into the shift register on each clock pulse. The shift/load (SH/LD) pin determines whether the data is shifted or loaded into the parallel output latch. The clock input (CLK) synchronizes the shifting process.

Detailed Application Field Plans

1. Data Communication Systems: Used in serial data transmission applications, such as UART (Universal Asynchronous Receiver Transmitter) interfaces.
2. Display Systems: Enables control of multiple LED or LCD segments in digital displays.
3. Industrial Automation: Facilitates data storage and transfer in various automation systems, including robotics and control panels.
4. Automotive Electronics: Utilized in automotive instrument clusters, dashboard displays, and other electronic modules.
5. Consumer Electronics: Integrated into devices like remote controls, gaming consoles, and digital cameras for data processing and control.

Detailed and Complete Alternative Models

1. SN74HC165N: Similar 8-bit shift register IC with parallel output, offered in DIP-16 package.
2. CD4021BE: 8-bit parallel-in/serial-out shift register IC, available in DIP-16 package.
3. 74HC595: 8-bit serial-in/serial-out shift register IC with output latches, provided in various packages.

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