Texas Instruments
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CD40194BE
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CD40194BE

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Shift Register
  • Characteristics: Serial-In, Parallel-Out (SIPO) shift register with asynchronous reset
  • Package: DIP-16 (Dual In-line Package with 16 pins)
  • Essence: The CD40194BE is a versatile shift register IC that can be used in various applications requiring serial-to-parallel data conversion.
  • Packaging/Quantity: Available in tubes of 25 or reels of 1000 units.

Specifications

The CD40194BE has the following specifications:

  • Supply Voltage: 3V to 18V
  • Input Voltage: -0.5V to VDD + 0.5V
  • Output Voltage: -0.5V to VDD + 0.5V
  • Operating Temperature Range: -55°C to +125°C
  • Maximum Clock Frequency: 10 MHz
  • Maximum Power Dissipation: 500 mW

Pin Configuration

The CD40194BE has a total of 16 pins arranged as follows:

  1. Serial Data Input (DS)
  2. Clock Input (CP)
  3. Asynchronous Reset Input (MR)
  4. Parallel Data Output Q0
  5. Parallel Data Output Q1
  6. Parallel Data Output Q2
  7. Parallel Data Output Q3
  8. Parallel Data Output Q4
  9. Parallel Data Output Q5
  10. Parallel Data Output Q6
  11. Parallel Data Output Q7
  12. Serial Data Output (Q7')
  13. Clock Enable Input (CE)
  14. Clock Inhibit Input (CI)
  15. Ground (GND)
  16. Positive Supply Voltage (VDD)

Functional Features

The CD40194BE offers the following functional features:

  • Serial-in, parallel-out data shifting
  • Asynchronous reset for clearing the shift register
  • Clock enable and clock inhibit inputs for controlling data transfer
  • Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages of using CD40194BE:

  • Versatile shift register suitable for a wide range of applications
  • Simple interface and control signals
  • Wide operating voltage range allows compatibility with different power supply levels

Disadvantages of using CD40194BE:

  • Limited maximum clock frequency compared to some other shift register ICs
  • DIP package may not be suitable for space-constrained designs

Working Principles

The CD40194BE operates based on the principle of serial-to-parallel data conversion. It receives data serially through the Serial Data Input (DS) pin and shifts it into its internal register on each rising edge of the Clock Input (CP) signal. The shifted data can then be accessed in parallel through the Parallel Data Output pins (Q0-Q7). The Asynchronous Reset Input (MR) allows clearing the shift register to its initial state.

Detailed Application Field Plans

The CD40194BE can be used in various applications, including:

  1. Data communication systems
  2. Serial-to-parallel data conversion in microcontrollers
  3. LED matrix control
  4. Digital displays
  5. Industrial automation systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD40194BE are:

  1. SN74HC595 - 8-bit serial-in, parallel-out shift register
  2. CD4094 - 8-stage shift-and-store bus register
  3. 74HC164 - 8-bit serial-in, parallel-out shift register

These alternative models can be considered based on specific requirements and availability.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af CD40194BE i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of CD40194BE in technical solutions:

  1. Q: What is CD40194BE? A: CD40194BE is a 4-bit bidirectional universal shift register IC (integrated circuit) commonly used in digital electronics.

  2. Q: What is the purpose of CD40194BE? A: CD40194BE is used for serial-to-parallel or parallel-to-serial data conversion, as well as for data storage and shifting operations.

  3. Q: How many bits can CD40194BE handle? A: CD40194BE is a 4-bit shift register, meaning it can handle up to 4 bits of data at a time.

  4. Q: Can CD40194BE be cascaded to handle more than 4 bits? A: Yes, multiple CD40194BE ICs can be cascaded together to handle larger numbers of bits, allowing for greater data storage and manipulation.

  5. Q: What is the maximum clock frequency supported by CD40194BE? A: The maximum clock frequency supported by CD40194BE is typically around 10 MHz, but it may vary depending on the specific manufacturer's specifications.

  6. Q: Does CD40194BE require external power supply? A: Yes, CD40194BE requires an external power supply typically ranging from 3V to 15V, depending on the specific variant of the IC.

  7. Q: Can CD40194BE operate at different voltage levels? A: Yes, CD40194BE is compatible with a wide range of voltage levels, making it suitable for use in various digital systems.

  8. Q: What are the input and output voltage levels of CD40194BE? A: CD40194BE typically operates with CMOS (Complementary Metal-Oxide-Semiconductor) logic levels, where a high input voltage is around VDD and a low input voltage is close to ground (GND).

  9. Q: Can CD40194BE be used in both synchronous and asynchronous modes? A: Yes, CD40194BE can be used in both synchronous and asynchronous modes of operation, depending on the specific requirements of the application.

  10. Q: What are some common applications of CD40194BE? A: CD40194BE is commonly used in applications such as data storage, serial-to-parallel or parallel-to-serial data conversion, shift registers, LED displays, and various digital control systems.

Please note that these answers are general and may vary based on the specific datasheet and manufacturer's specifications for CD40194BE.