HEF4020BT,653

Basic Information Overview

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

Specifications

• Supply Voltage Range: 3V to 15V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 30MHz
• Number of Stages: 14
• Reset Function: Active Low

Detailed Pin Configuration

1. VDD: Positive Power Supply
2. Q12: Output Stage 12
3. Q13: Output Stage 13
4. Q14: Output Stage 14
5. MR: Master Reset (Active Low)
6. CP: Clock Pulse Input
7. GND: Ground
8. Q11: Output Stage 11
9. Q10: Output Stage 10
10. Q9: Output Stage 9
11. Q8: Output Stage 8
12. Q7: Output Stage 7
13. Q6: Output Stage 6
14. Q5: Output Stage 5

Functional Features

• Internal oscillator eliminates the need for an external clock source
• High-speed operation allows for quick counting
• Low power consumption ensures energy efficiency
• Master reset function enables easy initialization of the counter

Advantages and Disadvantages

Advantages

• Compact size due to integration of multiple stages in a single IC
• Internal oscillator simplifies circuit design
• Wide supply voltage range provides flexibility in various applications

Disadvantages

• Limited number of stages (14) may not be sufficient for certain complex applications
• Lack of built-in output decoding requires additional circuitry for specific applications

Working Principles

The HEF4020BT,653 is a binary ripple counter that counts the number of clock pulses applied to its CP pin. It consists of 14 flip-flops connected in a ripple fashion, where each flip-flop divides the frequency by 2. The internal oscillator generates clock pulses, eliminating the need for an external clock source. The counter can be reset to zero using the master reset (MR) pin.

Detailed Application Field Plans

The HEF4020BT,653 can be used in various applications, including: 1. Frequency division: Dividing the input clock frequency by a factor of 2^14 (16384). 2. Time delay generation: Utilizing the counter's internal oscillator to generate precise time delays. 3. Event counting: Keeping track of the number of occurrences of a specific event.

Detailed and Complete Alternative Models

Some alternative models to the HEF4020BT,653 include: - CD4020BE: Similar 14-stage binary ripple counter with a wider supply voltage range. - MC14020B: Dual 4-bit binary counter with separate clock inputs. - SN74HC4040: 12-stage binary ripple counter with a higher maximum clock frequency.

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