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CD74HC190PWT
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CD74HC190PWT

Product Overview

Category

CD74HC190PWT 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
  • Wide operating voltage range
  • Low power consumption
  • Schmitt trigger inputs for noise immunity
  • Compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels

Package

CD74HC190PWT is available in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of CD74HC190PWT lies in its ability to perform counting and arithmetic functions in digital circuits efficiently and accurately.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel or 90 units per tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 25 MHz
  • Number of Pins: 16
  • Logic Family: HC (High-Speed CMOS)

Detailed Pin Configuration

  1. MR (Master Reset)
  2. CP (Clock Pulse)
  3. D (Data Input)
  4. Q0 (Output Bit 0)
  5. Q1 (Output Bit 1)
  6. Q2 (Output Bit 2)
  7. Q3 (Output Bit 3)
  8. Q4 (Output Bit 4)
  9. Q5 (Output Bit 5)
  10. Q6 (Output Bit 6)
  11. Q7 (Output Bit 7)
  12. GND (Ground)
  13. Q8 (Output Bit 8)
  14. Q9 (Output Bit 9)
  15. VCC (Supply Voltage)
  16. TC (Terminal Count)

Functional Features

  • Up/Down Counting: CD74HC190PWT 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 applications.
  • Carry Output: A carry output signal is generated when the maximum count value is reached.

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient counting and arithmetic functions.
  • Wide operating voltage range provides flexibility in various digital circuits.
  • Low power consumption helps in reducing overall power requirements.
  • Schmitt trigger inputs ensure noise immunity, enhancing reliability.

Disadvantages

  • Limited maximum clock frequency may restrict its use in high-frequency applications.
  • Availability in a specific package (TSSOP) might not be suitable for all circuit designs.

Working Principles

CD74HC190PWT operates based on the principles of synchronous digital logic. It utilizes flip-flops and combinational logic to perform counting and arithmetic functions. The clock pulse synchronizes the internal operations, while the input signals control the direction and mode of counting.

Detailed Application Field Plans

CD74HC190PWT finds applications in various fields, including: 1. Digital frequency dividers 2. Industrial automation systems 3. Electronic counters 4. Arithmetic units in microcontrollers 5. Communication equipment 6. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD74HC190PWT are: 1. CD74HC191E 2. SN74HC191N 3. MC74HC191N 4. 74HC191D

These alternatives can be considered based on specific requirements, availability, and pricing considerations.

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10個與CD74HC190PWT在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of CD74HC190PWT in technical solutions:

  1. Q: What is CD74HC190PWT? A: CD74HC190PWT is a high-speed CMOS integrated circuit that functions as a synchronous up/down decade counter.

  2. Q: What is the maximum clock frequency supported by CD74HC190PWT? A: CD74HC190PWT can operate at a maximum clock frequency of 25 MHz.

  3. Q: Can CD74HC190PWT be used as a binary counter? A: Yes, CD74HC190PWT can be configured as a binary counter by connecting the appropriate inputs.

  4. Q: How many bits does CD74HC190PWT support? A: CD74HC190PWT is a 4-bit counter, meaning it can count from 0 to 15 (in decimal).

  5. Q: What is the power supply voltage range for CD74HC190PWT? A: CD74HC190PWT operates with a power supply voltage range of 2V to 6V.

  6. Q: Can CD74HC190PWT handle both asynchronous and synchronous inputs? A: Yes, CD74HC190PWT supports both asynchronous preset and clear inputs, as well as synchronous up/down counting.

  7. Q: What is the typical propagation delay of CD74HC190PWT? A: The typical propagation delay of CD74HC190PWT is around 13 ns.

  8. Q: Can CD74HC190PWT be cascaded to create larger counters? A: Yes, multiple CD74HC190PWT chips can be cascaded together to create larger counters with more bits.

  9. Q: Does CD74HC190PWT have any built-in error detection or correction features? A: No, CD74HC190PWT does not have any built-in error detection or correction features.

  10. Q: What are some common applications of CD74HC190PWT? A: CD74HC190PWT is commonly used in applications such as frequency division, event counting, and general-purpose counting circuits.

Please note that these answers are general and may vary depending on the specific requirements and use cases.