ON Semiconductor
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MC74HC165ANG
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MC74HC165ANG

Product Overview

  • Category: Integrated Circuit
  • Use: Shift Register
  • Characteristics: High-Speed, CMOS Logic, 8-Bit Parallel-In/Serial-Out
  • Package: DIP (Dual In-line Package)
  • Essence: The MC74HC165ANG is a high-speed CMOS logic integrated circuit that functions as an 8-bit parallel-in/serial-out shift register.
  • Packaging/Quantity: The MC74HC165ANG is typically sold in tubes or reels, with a quantity of 25 pieces per tube/reel.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Input Voltage Levels: High: 2.0V, Low: 0.8V
  • Output Voltage Levels: High: VCC - 0.5V, Low: 0.5V
  • Maximum Clock Frequency: 29 MHz
  • Propagation Delay: 15 ns (typical)

Detailed Pin Configuration

The MC74HC165ANG has a total of 16 pins, which are assigned specific functions:

  1. SER (Serial Data Input)
  2. QH' (Serial Output)
  3. QH (Serial Output)
  4. DS (Serial Data Input)
  5. SH/LD (Shift/Load Input)
  6. CLK (Clock Input)
  7. GND (Ground)
  8. QG (Parallel Output)
  9. QF (Parallel Output)
  10. QE (Parallel Output)
  11. QD (Parallel Output)
  12. QC (Parallel Output)
  13. QB (Parallel Output)
  14. QA (Parallel Output)
  15. VCC (Positive Power Supply)
  16. MR (Master Reset Input)

Functional Features

  • High-speed operation allows for efficient data transfer.
  • CMOS logic ensures low power consumption and compatibility with a wide range of devices.
  • 8-bit parallel-in/serial-out functionality enables flexible data handling.
  • Shift/Load input provides control over the shift register's operation.
  • Master Reset input allows for resetting the shift register to its initial state.

Advantages and Disadvantages

Advantages: - High-speed operation facilitates quick data transfer. - Low power consumption due to CMOS technology. - Versatile parallel-in/serial-out functionality. - Compact DIP package for easy integration into various circuits.

Disadvantages: - Limited number of parallel outputs (8 bits). - Requires an external clock signal for proper operation.

Working Principles

The MC74HC165ANG operates as a parallel-in/serial-out shift register. It receives data in parallel through the DS pin and stores it internally. The data can then be shifted out serially through the QH' and QH pins. The shift/Load input (SH/LD) controls whether the data is being shifted or loaded into the register. The CLK input provides the clock signal for shifting the data.

Detailed Application Field Plans

The MC74HC165ANG can be used in various applications, including:

  1. Data acquisition systems
  2. Serial-to-parallel conversion
  3. Input expansion for microcontrollers
  4. Parallel data transmission
  5. Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MC74HC165ANG are:

  1. SN74HC165N by Texas Instruments
  2. CD74HC165E by Texas Instruments
  3. 74HC165D by NXP Semiconductors
  4. HEF40165BP by NXP Semiconductors
  5. M74HC165B1R by STMicroelectronics

These alternative models can be considered based on specific requirements and availability.

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10 domande e risposte comuni relative all'applicazione di MC74HC165ANG nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of MC74HC165ANG in technical solutions:

  1. Q: What is MC74HC165ANG? A: MC74HC165ANG is a 8-bit parallel-in/serial-out shift register that can be used for various digital applications.

  2. Q: What is the purpose of using MC74HC165ANG in a technical solution? A: MC74HC165ANG can be used to expand the number of input pins available on a microcontroller or other digital devices.

  3. Q: How many input pins does MC74HC165ANG have? A: MC74HC165ANG has 8 input pins, which can be connected to external switches, sensors, or other digital signals.

  4. Q: Can MC74HC165ANG be cascaded to increase the number of input pins? A: Yes, multiple MC74HC165ANG chips can be cascaded together to increase the number of input pins available.

  5. Q: How does MC74HC165ANG work? A: MC74HC165ANG works by shifting the state of each input pin into its internal shift register, allowing the microcontroller to read the state of all input pins sequentially.

  6. Q: What is the maximum clock frequency supported by MC74HC165ANG? A: MC74HC165ANG supports a maximum clock frequency of 25 MHz.

  7. Q: Can MC74HC165ANG be used with both 3.3V and 5V microcontrollers? A: Yes, MC74HC165ANG is compatible with both 3.3V and 5V logic levels, making it suitable for use with a wide range of microcontrollers.

  8. Q: Does MC74HC165ANG have any built-in debouncing features? A: No, MC74HC165ANG does not have built-in debouncing features. External debouncing circuitry may be required for noisy input signals.

  9. Q: What is the power supply voltage range for MC74HC165ANG? A: MC74HC165ANG operates with a power supply voltage range of 2V to 6V.

  10. Q: Are there any application notes or example circuits available for MC74HC165ANG? A: Yes, the manufacturer provides application notes and example circuits in the datasheet of MC74HC165ANG, which can help in understanding its usage and implementation in technical solutions.

Please note that these answers are general and may vary depending on specific requirements and use cases.