MC74HC4020ADR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Binary Counter
• Characteristics: High-speed operation, low power consumption
• Package: SOIC-16
• Essence: 14-stage binary ripple counter with a built-in oscillator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 25 MHz
• Number of Stages: 14
• Output Type: CMOS
• Input Type: CMOS
• Propagation Delay: 15 ns
• Power Dissipation: 500 mW

Detailed Pin Configuration

1. VCC: Positive supply voltage
2. GND: Ground
3. MR: Master Reset input
4. CP: Clock Pulse input
5. Q12-Q1: Outputs of the 14 stages
6. QH: Output of the highest stage
7. QH*: Complementary output of the highest stage
8. NC: No Connection
9. Q13-Q14: Additional outputs for cascading multiple counters
10. QH**: Complementary output of the highest stage for cascading 11-16. NC: No Connection

Functional Features

• Built-in oscillator eliminates the need for an external clock source
• Asynchronous master reset allows resetting the counter at any time
• Cascadable feature enables the connection of multiple counters for higher bit counts
• High-speed operation allows for efficient counting in various applications
• Low power consumption makes it suitable for battery-powered devices

Advantages

• Compact package size saves board space
• Wide supply voltage range provides flexibility in different applications
• High-speed operation enables quick counting in time-critical applications
• Low power consumption extends battery life in portable devices

Disadvantages

• Limited number of stages may not be suitable for applications requiring higher bit counts
• Propagation delay may affect timing accuracy in certain applications
• CMOS output type may have limitations in driving certain loads

Working Principles

The MC74HC4020ADR2G is a 14-stage binary ripple counter with a built-in oscillator. It operates by counting the rising edges of the clock pulse input (CP) and incrementing the count value on the outputs. The counter can be reset to zero using the master reset input (MR). The built-in oscillator generates the clock signal, eliminating the need for an external clock source.

Detailed Application Field Plans

1. Frequency Division: The MC74HC4020ADR2G can be used to divide the frequency of an input signal by a factor of 2^14, allowing for frequency reduction in various electronic systems.
2. Timekeeping: The counter can be utilized in digital clocks or timers to keep track of time intervals accurately.
3. Event Counting: It can be employed in event counting applications where the number of occurrences needs to be monitored.
4. Data Encoding: The counter can be used as part of a data encoding system to convert parallel data into serial data.

Detailed and Complete Alternative Models

1. CD4020BE: Similar 14-stage binary ripple counter with a wider supply voltage range (3V to 18V).
2. SN74HC4040N: 12-stage binary ripple counter with a higher maximum clock frequency (50 MHz).

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