Siehe Spezifikationen für Produktdetails.
CD4021BE
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Shift Register
- Characteristics: Serial to Parallel Conversion, 8-Bit Data Storage
- Package: DIP (Dual In-line Package)
- Essence: Digital Logic IC
- Packaging/Quantity: Tube/25 pieces
Specifications
- Supply Voltage: 3V to 18V
- Input Voltage: 0V to VDD
- Output Voltage: 0V to VDD
- Operating Temperature Range: -55°C to +125°C
- Maximum Clock Frequency: 5 MHz
- Maximum Power Dissipation: 500 mW
Detailed Pin Configuration
The CD4021BE IC has a total of 16 pins. The pin configuration is as follows:
| Pin No. | Name | Description | |---------|------|-------------| | 1 | Q7 | Output Bit 7 | | 2 | Q6 | Output Bit 6 | | 3 | Q5 | Output Bit 5 | | 4 | Q4 | Output Bit 4 | | 5 | Q3 | Output Bit 3 | | 6 | Q2 | Output Bit 2 | | 7 | Q1 | Output Bit 1 | | 8 | Q0 | Output Bit 0 | | 9 | GND | Ground | | 10 | SER | Serial Data Input | | 11 | CLK | Clock Input | | 12 | MR | Master Reset Input | | 13 | VDD | Positive Power Supply | | 14 | Q7' | Complementary Output Bit 7 | | 15 | Q6' | Complementary Output Bit 6 | | 16 | Q5' | Complementary Output Bit 5 |
Functional Features
- Serial to parallel conversion of data
- 8-bit data storage
- Cascadable for larger shift registers
- Master reset functionality
- Complementary outputs for each bit
Advantages and Disadvantages
Advantages
- Simple and easy to use
- Low power consumption
- Wide operating voltage range
- Can be cascaded for larger applications
Disadvantages
- Limited clock frequency (up to 5 MHz)
- Not suitable for high-speed applications
- Limited number of output bits (8 bits)
Working Principles
The CD4021BE is a shift register IC that converts serial input data into parallel output. It consists of eight D-type flip-flops connected in series, allowing the storage of 8 bits of data. The shift register can be clocked using an external clock signal, and the data is shifted through the flip-flops one by one. The parallel output is available at the Q0-Q7 pins. The MR pin allows for a master reset, clearing all the stored data.
Detailed Application Field Plans
The CD4021BE IC finds applications in various fields, including: 1. Digital electronics 2. Communication systems 3. Industrial automation 4. Robotics 5. Data acquisition systems
Detailed and Complete Alternative Models
Some alternative models to CD4021BE are: 1. SN74HC165N 2. CD74HC4094E 3. 74HC595
These alternatives offer similar functionality and can be used as replacements depending on specific requirements.
Word count: 280 words
Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von CD4021BE in technischen Lösungen auf
Sure! Here are 10 common questions and answers related to the application of CD4021BE in technical solutions:
Q1: What is CD4021BE? A1: CD4021BE is a CMOS 8-stage static shift register commonly used in digital electronics applications.
Q2: What is the purpose of CD4021BE? A2: CD4021BE is used to expand the number of input/output pins of microcontrollers or other digital devices.
Q3: How many input/output pins does CD4021BE have? A3: CD4021BE has 8 input/output pins.
Q4: How does CD4021BE work? A4: CD4021BE works by shifting data from its input pin to the output pins, allowing for parallel-to-serial or serial-to-parallel conversion.
Q5: What voltage levels does CD4021BE support? A5: CD4021BE supports a wide range of voltage levels, typically between 3V and 15V.
Q6: Can CD4021BE be cascaded to increase the number of input/output pins? A6: Yes, CD4021BE can be cascaded to increase the number of input/output pins by connecting the output of one CD4021BE to the input of another.
Q7: What is the maximum clock frequency supported by CD4021BE? A7: CD4021BE can operate at clock frequencies up to 5 MHz.
Q8: Is CD4021BE compatible with Arduino or Raspberry Pi? A8: Yes, CD4021BE is compatible with both Arduino and Raspberry Pi. It can be easily interfaced using digital I/O pins.
Q9: Can CD4021BE be used for reading multiple buttons or switches? A9: Yes, CD4021BE is commonly used for reading multiple buttons or switches as it provides additional input pins.
Q10: Are there any limitations to using CD4021BE? A10: One limitation of CD4021BE is that it does not have built-in debouncing, so external circuitry may be required for reliable button or switch inputs.
Please note that these answers are general and may vary depending on specific use cases and requirements.