CD4021BNSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: Serial to Parallel Conversion, 8-Bit Data Storage, Cascadable
• Package: SOIC-16
• Essence: The CD4021BNSR is a CMOS 8-stage static shift register that converts serial input data into parallel output format. It is commonly used in digital electronics for various applications.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 3V to 18V
• Operating Temperature Range: -55°C to +125°C
• Input Voltage High Level: 2/3 VDD
• Input Voltage Low Level: 1/3 VDD
• Output Voltage High Level: VDD - 0.5V
• Output Voltage Low Level: 0.5V

Detailed Pin Configuration

The CD4021BNSR has a total of 16 pins, which are as follows:

1. Clock (CLK)
2. Serial Data Input (SER)
3. Parallel Data Output Q0
4. Parallel Data Output Q1
5. Parallel Data Output Q2
6. Parallel Data Output Q3
7. Parallel Data Output Q4
8. Parallel Data Output Q5
9. Parallel Data Output Q6
10. Parallel Data Output Q7
11. Master Reset (MR)
12. Enable (EN)
13. Serial Data Output (Q7')
14. Ground (GND)
15. Supply Voltage (VDD)
16. Serial Data Input (SER)

Functional Features

• Converts serial input data into parallel output format
• 8-bit data storage capability
• Cascadable for expanding the number of stages
• Low power consumption due to CMOS technology
• Wide operating voltage range

Advantages and Disadvantages

Advantages

• Compact size and easy integration into electronic circuits
• High-speed data transfer capability
• Low power consumption
• Cascadable for expanding functionality

Disadvantages

• Limited number of output stages (8-bit)
• Requires external clock signal for operation

Working Principles

The CD4021BNSR operates by shifting the input data bits through its internal registers using a clock signal. The serial data is converted into parallel format and stored in the 8-bit storage register. The parallel data can then be accessed from the output pins.

Detailed Application Field Plans

The CD4021BNSR finds applications in various fields, including:

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

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD4021BNSR are:

1. SN74HC165N
2. CD4094BE
3. 74HC595N
4. CD4015BE
5. CD4511BE

These models can be considered as alternatives based on specific requirements and compatibility with the existing circuit design.

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