CD74HC165ME4
Product Overview
- Category: Integrated Circuit
- Use: Shift Register
- Characteristics: High-Speed, Serial-In Parallel-Out (SIPO), 8-Bit
- Package: SOIC-16
- Essence: Efficient data storage and transfer
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Logic Family: HC
- Number of Bits: 8
- Input Voltage: 2V to 6V
- Output Voltage: 0V to Vcc
- Operating Temperature: -40°C to +85°C
- Propagation Delay: 13 ns (typical)
- Supply Current: 4µA (typical)
Detailed Pin Configuration
The CD74HC165ME4 has a total of 16 pins. The pin configuration is as follows:
- SER (Serial Data Input)
- QH' (Serial Output)
- QH (Serial Output)
- GND (Ground)
- D7 (Parallel Data Input)
- D6 (Parallel Data Input)
- D5 (Parallel Data Input)
- D4 (Parallel Data Input)
- D3 (Parallel Data Input)
- D2 (Parallel Data Input)
- D1 (Parallel Data Input)
- D0 (Parallel Data Input)
- CLK (Clock Input)
- MR (Master Reset)
- SH/LD (Shift/Load Input)
- Vcc (Power Supply)
Functional Features
- High-speed data transfer with minimal delay
- Serial-in parallel-out operation for efficient data storage
- Easy integration into digital systems
- Wide operating voltage range for compatibility
- Low power consumption
Advantages
- Fast and reliable data transfer
- Compact and space-saving package
- Versatile integration options
- Suitable for various digital applications
- Low power consumption extends battery life
Disadvantages
- Limited number of bits (8-bit)
- Requires external clock signal for operation
- Not suitable for high-frequency applications
Working Principles
The CD74HC165ME4 is a shift register integrated circuit that allows serial data to be converted into parallel data. It operates based on the clock input and shift/load control signals. When the shift/load input is low, the device shifts the data in from the serial input pin with each clock pulse. On the rising edge of the clock signal, the shifted data is latched into the parallel output pins. The master reset pin can be used to clear the register and start fresh.
Detailed Application Field Plans
The CD74HC165ME4 is widely used in various digital systems and applications, including:
- Data acquisition systems
- Serial-to-parallel conversion circuits
- Industrial automation
- Communication devices
- LED matrix displays
- Keypad scanning circuits
- Robotics and control systems
- Automotive electronics
- Gaming consoles
- Instrumentation and measurement equipment
Alternative Models
- SN74HC165N - DIP-16 package, same functionality as CD74HC165ME4
- MC74HC165AN - PDIP-16 package, similar specifications to CD74HC165ME4
- 74HCT165 - CMOS logic family, compatible pin configuration
These alternative models offer similar functionality and can be used as replacements for the CD74HC165ME4 in various applications.
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기술 솔루션에 CD74HC165ME4 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of CD74HC165ME4 in technical solutions:
Q: What is CD74HC165ME4? A: CD74HC165ME4 is a 8-bit parallel-in/serial-out shift register integrated circuit (IC) commonly used for data input applications.
Q: What is the purpose of CD74HC165ME4? A: The purpose of CD74HC165ME4 is to convert parallel data inputs into serial data output, making it useful for expanding the number of input pins on microcontrollers or other digital devices.
Q: How many parallel inputs does CD74HC165ME4 have? A: CD74HC165ME4 has 8 parallel inputs, allowing you to connect up to 8 different input signals.
Q: Can CD74HC165ME4 be cascaded to increase the number of inputs? A: Yes, CD74HC165ME4 can be cascaded by connecting the serial output of one IC to the serial input of another, allowing you to expand the number of inputs as needed.
Q: What is the maximum clock frequency supported by CD74HC165ME4? A: CD74HC165ME4 supports clock frequencies up to 25 MHz, making it suitable for high-speed data transfer applications.
Q: Does CD74HC165ME4 require external pull-up resistors for its inputs? A: No, CD74HC165ME4 has internal pull-up resistors on its parallel inputs, eliminating the need for external pull-ups in most cases.
Q: What is the voltage supply range for CD74HC165ME4? A: CD74HC165ME4 operates with a voltage supply range of 2V to 6V, making it compatible with a wide range of digital systems.
Q: Can CD74HC165ME4 be used with both CMOS and TTL logic levels? A: Yes, CD74HC165ME4 is compatible with both CMOS and TTL logic levels, allowing it to interface with various types of digital devices.
Q: Does CD74HC165ME4 have any built-in error detection or correction features? A: No, CD74HC165ME4 does not have any built-in error detection or correction features. It simply transfers the input data to the output.
Q: Are there any specific application examples for CD74HC165ME4? A: Yes, CD74HC165ME4 can be used in applications such as keypad scanning, data acquisition systems, LED matrix control, and parallel-to-serial data conversion.
I hope these questions and answers provide you with a good understanding of CD74HC165ME4 and its applications!