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SN74HC165D
Product Overview
Category
SN74HC165D belongs to the category of integrated circuits (ICs).
Use
It is commonly used as a parallel-in, serial-out shift register.
Characteristics
- High-speed operation
- Wide operating voltage range
- Low power consumption
- Schmitt-trigger inputs for noise immunity
- Compatible with various logic families
- 8-bit parallel input and serial output
Package
SN74HC165D is available in a standard 16-pin dual in-line package (DIP).
Essence
The essence of SN74HC165D lies in its ability to convert parallel data into serial data, making it suitable for applications that require data transfer in a serial format.
Packaging/Quantity
SN74HC165D is typically packaged in tubes or reels, with quantities varying based on customer requirements.
Specifications
- Supply Voltage: 2V to 6V
- Input Voltage: 0V to VCC
- Output Voltage: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Maximum Clock Frequency: 25 MHz
- Maximum Data Rate: 25 Mbps
Detailed Pin Configuration
- SER (Serial Data Input)
- QH' (Serial Data Output)
- CLK (Clock Input)
- SH/LD (Shift/Load Input)
- GND (Ground)
- D0 (Parallel Data Input Bit 0)
- D1 (Parallel Data Input Bit 1)
- D2 (Parallel Data Input Bit 2)
- D3 (Parallel Data Input Bit 3)
- D4 (Parallel Data Input Bit 4)
- D5 (Parallel Data Input Bit 5)
- D6 (Parallel Data Input Bit 6)
- D7 (Parallel Data Input Bit 7)
- VCC (Supply Voltage)
Functional Features
- Parallel-to-serial data conversion
- Shift and load modes for flexible operation
- Schmitt-trigger inputs for noise immunity
- Wide operating voltage range allows compatibility with various systems
- High-speed operation enables efficient data transfer
Advantages
- Low power consumption makes it suitable for battery-powered devices
- Compatibility with different logic families enhances versatility
- Schmitt-trigger inputs provide robustness against noise
- Easy integration into existing circuits due to standard package and pin configuration
Disadvantages
- Limited maximum clock frequency compared to some other shift registers
- Lack of built-in output latches may require additional circuitry in certain applications
Working Principles
SN74HC165D operates by receiving parallel data through its input pins (D0-D7) and converting it into serial data at the output pin (QH'). The clock input (CLK) controls the shifting of data bits, while the shift/load input (SH/LD) determines the mode of operation. In shift mode, the incoming data is shifted out serially, whereas in load mode, the parallel data is latched and held until a new load cycle.
Detailed Application Field Plans
SN74HC165D finds application in various fields, including but not limited to: 1. Industrial automation 2. Robotics 3. Data acquisition systems 4. Communication equipment 5. Automotive electronics 6. Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to SN74HC165D are: 1. CD4021B: 8-bit parallel-in/serial-out shift register 2. 74HC165: 8-bit parallel-in/serial-out shift register 3. SN74LS165N: 8-bit parallel-in/serial-out shift register
These alternatives can be considered based on specific requirements and compatibility with existing systems.
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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням SN74HC165D у технічних рішеннях
Sure! Here are 10 common questions and answers related to the application of SN74HC165D in technical solutions:
Q: What is SN74HC165D? A: SN74HC165D is a popular 8-bit parallel-in/serial-out shift register integrated circuit (IC) commonly used in digital electronics.
Q: What is the purpose of using SN74HC165D in technical solutions? A: SN74HC165D is used to expand the number of input pins available on microcontrollers or other digital devices, allowing for the connection of multiple inputs using only a few pins.
Q: How many input pins can SN74HC165D handle? A: SN74HC165D has 8 input pins, which can be expanded by cascading multiple ICs together.
Q: How does SN74HC165D work? A: It works by shifting data from the input pins into its internal shift register when a clock signal is applied, and then outputting the data serially through a single pin.
Q: Can SN74HC165D be used with both digital and analog signals? A: No, SN74HC165D is designed to work with digital signals only.
Q: What is the maximum clock frequency supported by SN74HC165D? A: The maximum clock frequency supported by SN74HC165D is typically around 100 MHz.
Q: Can SN74HC165D be used in both input and output modes? A: No, SN74HC165D is primarily used as an input device to read multiple digital inputs. It is not designed for output purposes.
Q: How do I connect SN74HC165D to a microcontroller? A: SN74HC165D requires connections to power (VCC and GND), clock (CLK), data input (SER), and output enable (OE) pins. Consult the datasheet for the specific pinout details.
Q: Can SN74HC165D be used in both 3.3V and 5V systems? A: Yes, SN74HC165D is compatible with both 3.3V and 5V systems, as it has a wide operating voltage range.
Q: Are there any limitations or considerations when using SN74HC165D? A: Some considerations include the need for external pull-up resistors on the input pins, proper timing and synchronization with the clock signal, and ensuring that the maximum ratings of the IC are not exceeded.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult the manufacturer's guidelines for accurate information.