MC74HC4020ADTR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Binary Counter
• Characteristics: High-Speed, CMOS Logic, 14-Stage Ripple Carry Binary Counter/Divider and Oscillator
• Package: TSSOP-16
• Essence: The MC74HC4020ADTR2 is a high-speed CMOS logic IC that functions as a 14-stage ripple carry binary counter/divider and oscillator.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Stages: 14
• Maximum Clock Frequency: 25 MHz
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±5.2mA
• Propagation Delay: 15 ns
• Input Capacitance: 3.5 pF
• Output Capacitance: 8 pF

Pin Configuration

The MC74HC4020ADTR2 has a total of 16 pins arranged in a TSSOP package. The pin configuration is as follows:

1. Q12
2. Q13
3. Q14
4. GND
5. Q11
6. Q10
7. Q9
8. VCC
9. Q8
10. Q7
11. Q6
12. Q5
13. Q4
14. Q3
15. Q2
16. Q1

Functional Features

• High-speed operation allows for efficient counting and dividing.
• CMOS logic ensures low power consumption and compatibility with various digital systems.
• Ripple carry output enables cascading multiple counters for extended counting range.
• Oscillator functionality allows for generating clock signals.

Advantages and Disadvantages

Advantages: - High-speed operation enables quick counting and dividing. - CMOS logic ensures low power consumption. - Ripple carry output facilitates cascading multiple counters. - Compact TSSOP package saves board space.

Disadvantages: - Limited maximum clock frequency of 25 MHz. - Not suitable for applications requiring very high counting ranges.

Working Principles

The MC74HC4020ADTR2 operates as a ripple carry binary counter/divider. It counts input clock pulses and divides them by powers of 2, depending on the selected output stage. The counter can be reset to zero using the reset pin. Additionally, it can function as an oscillator by connecting an external resistor and capacitor to the oscillator pins.

Detailed Application Field Plans

The MC74HC4020ADTR2 finds applications in various fields, including:

1. Frequency Division: The counter can be used to divide the frequency of an input signal by powers of 2, allowing for frequency scaling in digital systems.
2. Timekeeping: The IC can be utilized in timekeeping circuits where precise timing intervals are required.
3. Event Counting: It can be employed to count events or pulses in applications such as industrial automation or electronic instrumentation.
4. Clock Generation: By utilizing the oscillator functionality, the IC can generate clock signals for synchronous digital systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MC74HC4020ADTR2 include:

1. CD4020BE: A 14-stage ripple carry binary counter/divider with similar specifications, available in a DIP package.
2. SN74HC4020N: Another 14-stage ripple carry binary counter/divider with comparable characteristics, offered in a DIP package.
3. HEF4020BP: A CMOS 14-stage binary counter/divider with similar features, available in a DIP package.

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

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