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CD4021BCMX
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Shift Register
- Characteristics: Serial to Parallel Conversion, 8-Bit Data Storage, Cascadable
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Efficient data transfer and storage solution
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 3V to 18V
- Input Voltage Range: 0V to VDD
- Output Voltage Range: 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 CD4021BCMX IC has a total of 16 pins. The pin configuration is as follows:
| Pin No. | Pin Name | Description | |---------|----------|-------------| | 1 | CLK | Clock Input | | 2 | SER | Serial Data Input | | 3 | QH' | Serial Data Output | | 4 | QH | Serial Data Output | | 5 | DS | Serial Data Input | | 6 | OE | Output Enable | | 7-14 | Q0-Q7 | Parallel Data Outputs | | 15 | GND | Ground | | 16 | VDD | Supply Voltage |
Functional Features
- Serial to parallel conversion
- 8-bit data storage
- Cascadable for expanding the number of outputs
- Output enable control for easy interfacing with other devices
- Wide supply voltage range for flexibility in different applications
Advantages and Disadvantages
Advantages
- Compact size and low power consumption
- Easy to use and integrate into various electronic systems
- High-speed data transfer capability
- Cascadable for expanding the number of outputs
Disadvantages
- Limited output current capacity
- Requires an external clock signal for operation
Working Principles
The CD4021BCMX is a shift register IC that performs serial to parallel conversion. It receives data serially through the SER pin and shifts it into its internal storage registers on each clock pulse received at the CLK pin. The stored data can then be accessed in parallel from the Q0-Q7 pins. The OE pin controls the output enable, allowing the user to disable the outputs when necessary.
Detailed Application Field Plans
The CD4021BCMX is widely used in various applications, including: - Data communication systems - Industrial automation - Consumer electronics - Automotive electronics - Robotics - Instrumentation
Detailed and Complete Alternative Models
Some alternative models to the CD4021BCMX are: - SN74HC165N - CD74HC4094E - 74HC595D - CD4015BE - SN74LS164N
These alternative models offer similar functionality and can be used as replacements depending on specific requirements.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de CD4021BCMX em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of CD4021BCMX in technical solutions:
Q1: What is CD4021BCMX? A1: CD4021BCMX is a CMOS 8-stage static shift register commonly used in digital applications.
Q2: What is the purpose of CD4021BCMX? A2: CD4021BCMX is used to expand the number of input/output pins of microcontrollers or other digital devices.
Q3: How many input/output pins does CD4021BCMX have? A3: CD4021BCMX has 8 input/output pins.
Q4: Can CD4021BCMX be cascaded to increase the number of input/output pins? A4: Yes, CD4021BCMX can be cascaded to expand the number of input/output pins by connecting the output of one CD4021BCMX to the input of another.
Q5: What is the maximum number of CD4021BCMX that can be cascaded? A5: The maximum number of CD4021BCMX that can be cascaded depends on the specific application and the limitations of the microcontroller or digital device being used.
Q6: What is the power supply voltage range for CD4021BCMX? A6: CD4021BCMX operates with a power supply voltage range of 3V to 18V.
Q7: What is the maximum clock frequency for CD4021BCMX? A7: The maximum clock frequency for CD4021BCMX is typically around 5 MHz.
Q8: Does CD4021BCMX have any built-in debounce circuitry? A8: No, CD4021BCMX does not have any built-in debounce circuitry. External debounce circuitry may be required depending on the application.
Q9: Can CD4021BCMX be used for both input and output operations? A9: Yes, CD4021BCMX can be used for both input and output operations. It can be configured as an input shift register or an output shift register.
Q10: What are some common applications of CD4021BCMX? A10: CD4021BCMX is commonly used in applications such as keypad scanning, LED matrix control, data acquisition systems, and general-purpose input/output expansion.
Please note that these answers are general and may vary depending on the specific requirements and implementation of the technical solution.