CD74HCT393ME4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-Speed CMOS Logic, Dual 4-Bit Binary Ripple Counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Counter and Divider
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 3.15V (minimum), 5.25V (maximum)
• Low-Level Input Voltage: 0.35V (maximum)
• High-Level Output Voltage: 4.4V (minimum), 5.25V (typical)
• Low-Level Output Voltage: 0.55V (maximum)
• Maximum Clock Frequency: 50MHz

Detailed Pin Configuration

The CD74HCT393ME4 has a total of 14 pins:

1. Pin 1: Clock Input A
2. Pin 2: Clock Input B
3. Pin 3: Reset Input
4. Pin 4: Data Input A
5. Pin 5: Data Input B
6. Pin 6: Carry Output
7. Pin 7: Q0 Output
8. Pin 8: Q1 Output
9. Pin 9: Q2 Output
10. Pin 10: Q3 Output
11. Pin 11: GND (Ground)
12. Pin 12: Q3' Output
13. Pin 13: Q2' Output
14. Pin 14: VCC (Supply Voltage)

Functional Features

• Dual 4-bit binary ripple counter with asynchronous reset
• Synchronous counting on both rising and falling edges of the clock signal
• Carry output for cascading multiple counters
• High-speed operation with low power consumption
• Wide supply voltage range for versatile applications

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in various applications - Dual counter design provides flexibility in circuit design - Asynchronous reset enables easy initialization of the counter - Low power consumption ensures energy efficiency

Disadvantages: - Limited maximum clock frequency may restrict its use in high-frequency applications - Only supports binary counting, not suitable for other counting systems

Working Principles

The CD74HCT393ME4 is a dual 4-bit binary ripple counter. It counts from 0 to 15 (in binary) based on the clock input signals. The counter can be reset asynchronously using the reset input. Synchronous counting occurs on both rising and falling edges of the clock signal.

The carry output pin allows cascading multiple counters to achieve higher counting ranges. The counter operates at high speed while consuming low power, making it suitable for various digital logic applications.

Detailed Application Field Plans

The CD74HCT393ME4 is commonly used in the following applications:

1. Frequency Division: The counter can divide an input clock signal by a factor of 16, allowing for frequency division in electronic circuits.
2. Event Counting: It can be used to count events or pulses in digital systems, such as in industrial automation or electronic instrumentation.
3. Time Delay Generation: By utilizing the counter's clock input and carry output, precise time delays can be generated in applications like timers or sequential logic circuits.

Detailed and Complete Alternative Models

1. SN74HCT393: Similar to CD74HCT393ME4, but available in different package options (DIP, SOP, TSSOP).
2. MC74HCT393: Another alternative with similar functionality, offered by a different manufacturer (Motorola).

These alternative models provide similar features and can be used as replacements for the CD74HCT393ME4 in various applications.

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