CD4021BPWRG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: Serial to Parallel Conversion, 8-Bit Data Storage, Cascadable
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The CD4021BPWRG4 is a CMOS 8-stage static shift register that converts serial input data into parallel output format.
• 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 CD4021BPWRG4 has a total of 16 pins. The pin configuration is as follows:

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

Functional Features

• Serial to Parallel Conversion: The CD4021BPWRG4 can convert serial input data into parallel output format, allowing for efficient data processing.
• 8-Bit Data Storage: It has the capability to store 8 bits of data, providing flexibility in various applications.
• Cascadable: Multiple CD4021BPWRG4 ICs can be cascaded together to increase the number of parallel outputs.

Advantages and Disadvantages

Advantages: - Low power consumption due to CMOS technology - Wide operating voltage range - Compact TSSOP package for space-constrained designs

Disadvantages: - Limited clock frequency compared to some other shift registers - Lack of built-in output latches may require additional circuitry for certain applications

Working Principles

The CD4021BPWRG4 operates based on the principle of serial to parallel conversion. The serial data input (SER) receives a stream of data bits, which are then shifted into the shift register on each rising edge of the clock input (CLK). The stored data can be accessed in parallel format through the parallel data outputs (Q0-Q7). The master reset (MR) pin allows for clearing the register, while the output enable (OE) pin controls the activation of the parallel outputs.

Detailed Application Field Plans

The CD4021BPWRG4 finds application in various fields, including: 1. Industrial Automation: Used for data acquisition and control systems. 2. Consumer Electronics: Integrated into remote controls, keypads, and digital displays. 3. Automotive: Employed in dashboard instrumentation and lighting control circuits. 4. Communication Systems: Utilized for signal processing and data transmission. 5. Robotics: Integrated into robot control circuits for sensor interfacing and data storage.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD4021BPWRG4 include: 1. SN74HC165N: 8-Bit Parallel-In/Serial-Out Shift Register 2. CD4094BE: 8-Stage Shift-and-Store Bus Register 3. 74HC595: 8-Bit Serial-In/Serial or Parallel-Out Shift Register

These alternative models can be considered based on specific project requirements and availability.

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