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CD74HC190EG4
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CD74HC190EG4

Product Overview

Category

CD74HC190EG4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as counters, frequency dividers, and arithmetic operations.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
  • Compatible with TTL and CMOS logic levels

Package

CD74HC190EG4 is available in a 16-pin dual in-line package (DIP) or a surface mount package (SMD).

Essence

The essence of CD74HC190EG4 lies in its ability to perform counting and arithmetic operations efficiently and accurately in digital circuits.

Packaging/Quantity

CD74HC190EG4 is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact quantity may vary depending on the manufacturer.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 25 MHz
  • Number of Counting Stages: 4
  • Output Current: ±5.2 mA
  • Propagation Delay: 13 ns (typical)

Detailed Pin Configuration

  1. MR (Master Reset)
  2. CP (Clock Pulse)
  3. D0 (Data Input 0)
  4. D1 (Data Input 1)
  5. D2 (Data Input 2)
  6. D3 (Data Input 3)
  7. Q0 (Output 0)
  8. Q1 (Output 1)
  9. Q2 (Output 2)
  10. Q3 (Output 3)
  11. RC (Ripple Carry Output)
  12. TC (Terminal Count Output)
  13. GND (Ground)
  14. VCC (Supply Voltage)
  15. CE (Count Enable)
  16. PE (Parallel Enable)

Functional Features

  • Up/Down Counting: CD74HC190EG4 can count up or down based on the input signals.
  • Synchronous Operation: The counting and arithmetic operations are synchronized with the clock pulse.
  • Parallel Load: The IC allows loading of initial values in parallel for specific counting sequences.
  • Carry Output: The ripple carry output provides a signal indicating when the maximum count value is reached.

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient counting and arithmetic operations.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide operating voltage range allows compatibility with various systems.
  • Schmitt-trigger inputs provide noise immunity, ensuring reliable operation.
  • Compatibility with TTL and CMOS logic levels simplifies integration into existing circuits.

Disadvantages

  • Limited number of counting stages (4 in this case) may not be sufficient for complex applications requiring higher counts.
  • Propagation delay of 13 ns may introduce timing constraints in certain high-speed applications.

Working Principles

CD74HC190EG4 operates based on the principles of synchronous digital counters. It utilizes flip-flops and combinational logic to perform counting and arithmetic operations. The clock pulse synchronizes the internal circuitry, enabling accurate counting and control over the outputs.

Detailed Application Field Plans

CD74HC190EG4 finds applications in various fields, including: 1. Digital frequency dividers 2. Industrial automation 3. Communication systems 4. Automotive electronics 5. Consumer electronics 6. Embedded systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD74HC190EG4 include: 1. SN74HC190N 2. MC74HC190N 3. CD40192BE 4. HEF40192BP 5. 74HCT190N

These alternatives can be considered based on specific requirements, availability, and compatibility with existing systems.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af CD74HC190EG4 i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of CD74HC190EG4 in technical solutions:

  1. Q: What is CD74HC190EG4? A: CD74HC190EG4 is a high-speed CMOS counter IC (integrated circuit) with presettable synchronous up/down counters.

  2. Q: What is the maximum clock frequency supported by CD74HC190EG4? A: CD74HC190EG4 can operate at a maximum clock frequency of 25 MHz.

  3. Q: Can CD74HC190EG4 be used as a binary or BCD (binary-coded decimal) counter? A: Yes, CD74HC190EG4 can function as both a binary and BCD counter.

  4. Q: How many bits does CD74HC190EG4 have? A: CD74HC190EG4 is a 4-bit counter, meaning it can count from 0 to 15 (in binary) or 0 to 9 (in BCD).

  5. Q: Does CD74HC190EG4 have asynchronous reset capability? A: No, CD74HC190EG4 does not have an asynchronous reset feature. It only supports synchronous reset.

  6. Q: What is the power supply voltage range for CD74HC190EG4? A: CD74HC190EG4 operates within a power supply voltage range of 2V to 6V.

  7. Q: Can CD74HC190EG4 be cascaded to create larger counters? A: Yes, multiple CD74HC190EG4 ICs can be cascaded together to create larger counters with more bits.

  8. Q: What is the typical propagation delay of CD74HC190EG4? A: The typical propagation delay of CD74HC190EG4 is around 13 ns.

  9. Q: Does CD74HC190EG4 have any built-in decoding capabilities? A: No, CD74HC190EG4 does not have any built-in decoding features. It is a simple counter IC.

  10. Q: What are some common applications of CD74HC190EG4? A: CD74HC190EG4 is commonly used in applications such as frequency dividers, event counters, digital clocks, and general-purpose counting circuits.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.