Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
CD74HC670MT
Zobrazit detail DataSheets

CD74HC670MT

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Counter/Shift Register
  • Characteristics: High-speed, CMOS logic, 4-bit parallel access
  • Package: TSSOP-16
  • Essence: A versatile IC that combines the functionality of a counter and a shift register
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: HC (High-Speed CMOS)
  • Number of Bits: 4
  • Clock Frequency: Up to 25 MHz
  • Output Current: ±6 mA
  • Propagation Delay: 15 ns (typical)

Pin Configuration

The CD74HC670MT has a total of 16 pins. The pin configuration is as follows:

  1. QA (Output)
  2. QB (Output)
  3. QC (Output)
  4. QD (Output)
  5. MR (Master Reset)
  6. CP (Clock Pulse)
  7. CE (Chip Enable)
  8. P0 (Parallel Data Input)
  9. P1 (Parallel Data Input)
  10. P2 (Parallel Data Input)
  11. P3 (Parallel Data Input)
  12. DS (Serial Data Input)
  13. SH (Shift Register Clock)
  14. PL (Parallel Load)
  15. GND (Ground)
  16. VCC (Supply Voltage)

Functional Features

  • Combination of counter and shift register functionality
  • Parallel or serial data input options
  • Master reset for clearing the counter
  • High-speed operation up to 25 MHz
  • Low power consumption due to CMOS technology
  • Easy integration with other digital circuits

Advantages and Disadvantages

Advantages: - Versatile functionality combining counter and shift register - High-speed operation allows for quick data processing - Low power consumption makes it suitable for battery-powered devices - Easy integration with other digital circuits simplifies system design

Disadvantages: - Limited to 4-bit parallel access, may not be suitable for applications requiring larger data sizes - Propagation delay of 15 ns may introduce timing issues in certain high-speed applications

Working Principles

The CD74HC670MT operates based on the principles of digital logic. It consists of a 4-bit counter and a shift register. The counter can be loaded with parallel data or shifted serially depending on the mode selected. Clock pulses control the shifting or counting operation. The chip enable (CE) and master reset (MR) inputs provide additional control over the functionality.

Detailed Application Field Plans

The CD74HC670MT finds applications in various fields where counting and shifting operations are required. Some potential application areas include:

  1. Industrial Automation: Used in conveyor belt systems, production line control, and inventory management.
  2. Communication Systems: Employed in data transmission protocols, error detection, and correction mechanisms.
  3. Automotive Electronics: Integrated into vehicle control units, dashboard displays, and sensor data processing.
  4. Consumer Electronics: Utilized in remote controls, digital cameras, and gaming consoles for input/output operations.
  5. Medical Devices: Incorporated in patient monitoring systems, laboratory equipment, and diagnostic instruments.

Detailed and Complete Alternative Models

  1. SN74HC670N: Similar functionality and specifications, available in DIP-16 package.
  2. CD4017BE: Decade counter with 10 outputs, available in DIP-16 package.
  3. 74HC595: 8-bit shift register with output latches, available in SOIC-16 package.
  4. CD4020B: 14-stage binary counter, available in DIP-16 package.

These alternative models offer similar functionality to the CD74HC670MT and can be considered based on specific application requirements.

Word count: 489 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací CD74HC670MT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of CD74HC670MT in technical solutions:

  1. Q: What is CD74HC670MT? A: CD74HC670MT is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) counter with parallel outputs, commonly used in digital circuits.

  2. Q: What is the maximum operating voltage for CD74HC670MT? A: The maximum operating voltage for CD74HC670MT is typically 6 volts.

  3. Q: How many bits does CD74HC670MT have? A: CD74HC670MT is a 4-bit counter, meaning it can count up to 16 different states.

  4. Q: Can CD74HC670MT be cascaded to increase the number of bits? A: Yes, CD74HC670MT can be cascaded to increase the number of bits and achieve higher counting ranges.

  5. Q: What is the typical clock frequency range for CD74HC670MT? A: The typical clock frequency range for CD74HC670MT is between 2 MHz and 25 MHz.

  6. Q: Does CD74HC670MT have any built-in error detection or correction features? A: No, CD74HC670MT does not have any built-in error detection or correction features. It is a simple counter circuit.

  7. Q: Can CD74HC670MT be used in both synchronous and asynchronous modes? A: Yes, CD74HC670MT can be used in both synchronous and asynchronous modes, depending on the application requirements.

  8. Q: What are the typical applications of CD74HC670MT? A: CD74HC670MT is commonly used in applications such as frequency division, event counting, digital clocks, and general-purpose counting circuits.

  9. Q: What is the power supply voltage range for CD74HC670MT? A: The power supply voltage range for CD74HC670MT is typically between 2 volts and 6 volts.

  10. Q: Does CD74HC670MT have any special power-saving features? A: No, CD74HC670MT does not have any special power-saving features. It operates at standard power consumption levels for CMOS logic circuits.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for CD74HC670MT.