CD4021BCM

Product Overview

Category

CD4021BCM belongs to the category of integrated circuits (ICs).

Use

It is commonly used for parallel-to-serial data conversion.

Characteristics

• CD4021BCM is a CMOS 8-stage static shift register.
• It operates at a wide voltage range, typically between 3V and 18V.
• The IC has a high-speed clock input and serial data output.
• It offers asynchronous reset functionality.
• CD4021BCM is known for its low power consumption.

Package

The CD4021BCM is available in a standard 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of CD4021BCM lies in its ability to convert parallel data into serial data, making it suitable for various applications requiring data transmission and storage.

Packaging/Quantity

The CD4021BCM is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 3V - 18V
• Input Clock Frequency: Up to 5 MHz
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±10mA
• Power Dissipation: 500mW

Detailed Pin Configuration

1. Serial Data Input (DS)
2. Clock Input (CP)
3. Parallel Data Output (QH')
4. Asynchronous Reset (MR)
5. Serial Data Output (QH)
6. Serial Data Output Enable (OE)
7. Ground (GND)
8. Parallel Data Inputs (D0-D7)
9. VDD (Positive Power Supply)

Functional Features

• CD4021BCM can be cascaded to increase the number of parallel inputs.
• It provides a synchronous parallel load capability.
• The IC offers a wide operating voltage range, making it compatible with various systems.
• CD4021BCM has an asynchronous reset input for clearing the register to its initial state.

Advantages and Disadvantages

Advantages

• Low power consumption
• Wide operating voltage range
• Synchronous parallel load capability
• Compact size and easy integration

Disadvantages

• Limited number of parallel inputs
• Relatively low clock frequency compared to some other shift registers

Working Principles

CD4021BCM operates by shifting data from its parallel inputs to the serial output. The clock input (CP) controls the shifting process. On each clock pulse, the data is shifted one stage to the right. The parallel data inputs (D0-D7) are loaded into the register when the parallel load enable (PL) signal is active. The asynchronous reset (MR) input clears the register to its initial state when triggered.

Detailed Application Field Plans

CD4021BCM finds applications in various fields, including:

1. Data communication systems
2. Serial-to-parallel data conversion
3. Industrial automation
4. Robotics
5. LED matrix displays
6. Sensor interfacing
7. Keypad scanning
8. Digital counters

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to CD4021BCM include:

1. SN74HC165N
2. CD74HC4094E
3. 74HC595
4. CD4015BE
5. CD4094BE

These models offer similar functionality and can be used as replacements depending on specific requirements.

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