CD4020BNSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Binary Counter
• Characteristics: High-speed operation, low power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 14-stage ripple-carry binary counter/divider
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3V to 18V
• Maximum Clock Frequency: 30 MHz
• Number of Stages: 14
• Output Current: ±4mA
• Operating Temperature Range: -55°C to +125°C

Detailed Pin Configuration

The CD4020BNSR has a total of 16 pins. The pin configuration is as follows:

1. Q5
2. Q4
3. Q3
4. Q2
5. Q1
6. Q0
7. MR (Master Reset)
8. CP (Clock Pulse)
9. Q6
10. Q7
11. Q8
12. Q9
13. Q10
14. Q11
15. VDD (Supply Voltage)
16. VSS (Ground)

Functional Features

• High-speed operation allows for efficient counting/dividing.
• Low power consumption makes it suitable for battery-powered devices.
• Master Reset (MR) pin allows for resetting the counter to its initial state.
• Clock Pulse (CP) pin triggers the counting operation.

Advantages and Disadvantages

Advantages

• High-speed operation enables quick counting operations.
• Low power consumption prolongs battery life in portable devices.
• Compact SOIC package saves space on circuit boards.
• Wide supply voltage range provides flexibility in various applications.

Disadvantages

• Limited number of stages (14) may not be sufficient for complex counting tasks.
• Lack of built-in carry-out functionality may require additional circuitry for certain applications.

Working Principles

The CD4020BNSR is a ripple-carry binary counter/divider. It operates by counting the rising edges of clock pulses applied to the CP pin. Each clock pulse increments the counter by one, and the output pins (Q0-Q11) represent the binary value of the count. The counter can be reset to its initial state using the Master Reset (MR) pin.

Detailed Application Field Plans

The CD4020BNSR finds applications in various fields, including:

1. Digital frequency division: The counter can be used to divide an input frequency by powers of 2, enabling frequency scaling in digital systems.
2. Timekeeping: By connecting an appropriate clock source, the counter can be utilized as a timekeeping device for interval measurements or event timing.
3. Industrial automation: The CD4020BNSR can be employed in industrial control systems for counting and monitoring processes.

Detailed and Complete Alternative Models

• CD4040BNSR: Similar to CD4020BNSR but with 12 stages instead of 14.
• CD4060BNSR: Enhanced version with built-in oscillator and more stages (16).

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