Texas Instruments
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CD74HCT93E
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CD74HCT93E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Counter
  • Characteristics: High-Speed CMOS Logic, 4-Bit Binary Ripple Counter
  • Package: 14-Pin DIP (Dual In-Line Package)
  • Essence: The CD74HCT93E is a counter IC that can count up to 15 in binary form.
  • Packaging/Quantity: Available in tubes of 25 pieces or reels of 2,000 pieces.

Specifications

  • Supply Voltage: 2V - 6V
  • Logic Family: HCT
  • Number of Pins: 14
  • Operating Temperature Range: -55°C to +125°C
  • Propagation Delay: 13 ns (typical)
  • Maximum Clock Frequency: 50 MHz

Detailed Pin Configuration

The CD74HCT93E has the following pin configuration:

  1. CLK (Clock Input)
  2. RCO (Ripple Carry Output)
  3. Q0 (Least Significant Bit Output)
  4. Q1 (Second Bit Output)
  5. Q2 (Third Bit Output)
  6. Q3 (Most Significant Bit Output)
  7. GND (Ground)
  8. Q3 (Most Significant Bit Output)
  9. Q2 (Third Bit Output)
  10. Q1 (Second Bit Output)
  11. Q0 (Least Significant Bit Output)
  12. RCO (Ripple Carry Output)
  13. CLK (Clock Input)
  14. VCC (Power Supply)

Functional Features

  • Counts from 0 to 15 in binary form
  • Asynchronous reset capability
  • Outputs are buffered for increased driving capability
  • Schmitt-trigger inputs for noise immunity
  • High-speed operation

Advantages and Disadvantages

Advantages

  • Wide operating voltage range
  • High-speed operation
  • Asynchronous reset capability allows for easy initialization
  • Buffered outputs provide increased driving capability
  • Schmitt-trigger inputs ensure noise immunity

Disadvantages

  • Limited count range (0 to 15)
  • Only available in a 14-pin DIP package

Working Principles

The CD74HCT93E is a ripple counter that counts from 0 to 15 in binary form. It uses flip-flops and logic gates to achieve the counting functionality. The CLK input provides the clock signal, which increments the counter on each rising edge. The RCO output generates a carry signal when the counter reaches its maximum value (15) and rolls over to 0.

Detailed Application Field Plans

The CD74HCT93E can be used in various applications that require counting functionality. Some potential application fields include:

  1. Digital frequency dividers
  2. Event counters
  3. Time delay circuits
  4. Industrial automation systems
  5. Electronic games and toys

Detailed and Complete Alternative Models

  1. SN74HC93 - 4-Bit Binary Ripple Counter with Asynchronous Reset
  2. CD4017 - Decade Counter/Divider with 10 Decoded Outputs
  3. MC14553B - Programmable Timer Counter

These alternative models offer similar counting capabilities and can be used as substitutes for the CD74HCT93E in different applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de CD74HCT93E en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of CD74HCT93E in technical solutions:

  1. Q: What is CD74HCT93E? A: CD74HCT93E is a high-speed CMOS logic IC, specifically a 4-bit binary ripple counter. It can be used for various applications requiring counting or division of clock signals.

  2. Q: What is the operating voltage range of CD74HCT93E? A: CD74HCT93E operates within a voltage range of 2V to 6V.

  3. Q: How many flip-flops are there in CD74HCT93E? A: CD74HCT93E consists of four flip-flops, which allows it to count up to 16 different states.

  4. Q: Can CD74HCT93E be cascaded to create larger counters? A: Yes, CD74HCT93E can be cascaded with other counters to create larger counters by connecting the carry output of one counter to the clock input of the next.

  5. Q: What is the maximum clock frequency supported by CD74HCT93E? A: CD74HCT93E can operate at a maximum clock frequency of 25 MHz.

  6. Q: Does CD74HCT93E have any asynchronous inputs? A: No, CD74HCT93E does not have any asynchronous inputs. All inputs are synchronous to the clock signal.

  7. Q: What is the power supply current consumption of CD74HCT93E? A: The typical power supply current consumption of CD74HCT93E is around 8 mA.

  8. Q: Can CD74HCT93E be used in both digital and analog circuits? A: CD74HCT93E is primarily designed for digital circuits and is not suitable for analog applications.

  9. Q: What is the package type of CD74HCT93E? A: CD74HCT93E is available in various package types, including DIP (Dual Inline Package) and SOIC (Small Outline Integrated Circuit).

  10. Q: Are there any specific precautions to consider when using CD74HCT93E? A: It is important to ensure that the power supply voltage does not exceed the specified range (2V to 6V) to prevent damage to the IC. Additionally, proper decoupling capacitors should be used near the power supply pins to minimize noise and voltage fluctuations.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for CD74HCT93E.