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MM74HC259M

MM74HC259M

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Storage and Control
  • Characteristics: High-Speed, 8-Bit Addressable Latch/Shift Register
  • Package: DIP (Dual In-line Package)
  • Essence: The MM74HC259M is a versatile IC that combines the functionality of an 8-bit latch and a shift register. It can store and control data in various applications.
  • Packaging/Quantity: The MM74HC259M is typically sold in reels or tubes, with a quantity of 25 units per reel/tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Latch Enable Setup Time: 20 ns
  • Data Input Setup Time: 20 ns
  • Data Output Hold Time: 10 ns
  • Maximum Clock Frequency: 33 MHz

Detailed Pin Configuration

The MM74HC259M has a total of 16 pins, which are arranged as follows:

  1. GND (Ground)
  2. D0 (Data Input 0)
  3. D1 (Data Input 1)
  4. D2 (Data Input 2)
  5. D3 (Data Input 3)
  6. D4 (Data Input 4)
  7. D5 (Data Input 5)
  8. D6 (Data Input 6)
  9. D7 (Data Input 7)
  10. LE (Latch Enable)
  11. CLK (Clock)
  12. Q0 (Output 0)
  13. Q1 (Output 1)
  14. Q2 (Output 2)
  15. Q3 (Output 3)
  16. VCC (Power Supply)

Functional Features

  • The MM74HC259M can operate as an 8-bit latch or a shift register, depending on the control signals applied.
  • It has a latch enable input (LE) that allows data to be stored in the internal latches.
  • The clock input (CLK) controls the shifting of data through the shift register.
  • The outputs (Q0-Q3) provide the stored or shifted data.
  • The IC is designed for high-speed operation and can handle frequencies up to 33 MHz.

Advantages and Disadvantages

Advantages: - Versatile functionality as both a latch and a shift register. - High-speed operation. - Wide operating voltage range. - Compact DIP package for easy integration.

Disadvantages: - Limited number of outputs (4 bits). - Requires external control signals for proper operation.

Working Principles

The MM74HC259M operates based on the principles of latch and shift register circuits. When the latch enable (LE) signal is high, the data inputs (D0-D7) are stored in the internal latches. On the rising edge of the clock (CLK) signal, the stored data is shifted through the shift register. The shifted data appears at the outputs (Q0-Q3). The IC can be controlled to function either as a latch or a shift register by manipulating the control signals.

Detailed Application Field Plans

The MM74HC259M finds applications in various fields where data storage and control are required. Some specific application areas include:

  1. Digital Communication Systems
  2. Data Processing Units
  3. Industrial Automation
  4. Robotics
  5. Automotive Electronics

In digital communication systems, the MM74HC259M can be used for address decoding, data buffering, and control signal generation. In data processing units, it can assist in data manipulation and control logic implementation. In industrial automation and robotics, the IC can be utilized for controlling actuators, sensors, and data acquisition. Automotive electronics can benefit from the MM74HC259M in applications such as dashboard control, lighting systems, and sensor interfacing.

Detailed and Complete Alternative Models

  1. 74HC595: 8-Bit Serial-In/Parallel-Out Shift Register
  2. CD4015: Dual 4-Stage Static Shift Register
  3. SN74LS164: 8-Bit Serial-In/Parallel-Out Shift Register
  4. CD4094: 8-Stage Shift-and-Store Bus Register
  5. 74HCT164: 8-Bit Serial-In/Parallel-Out Shift Register

These alternative models offer similar functionality to the MM74HC259M and can be used as substitutes depending on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MM74HC259M v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MM74HC259M in technical solutions:

  1. Q: What is MM74HC259M? A: MM74HC259M is a 8-bit addressable latch with 3-state outputs, commonly used in digital systems.

  2. Q: What is the purpose of MM74HC259M? A: MM74HC259M is used to store and control the flow of data in digital circuits, allowing for efficient data manipulation.

  3. Q: How does MM74HC259M work? A: MM74HC259M has an 8-bit input that stores data when the latch enable (LE) pin is high. The stored data can be outputted on the 8-bit output pins when the output enable (OE) pin is low.

  4. Q: What voltage levels does MM74HC259M support? A: MM74HC259M supports a wide range of voltage levels, typically from 2V to 6V.

  5. Q: Can MM74HC259M handle high-speed data transfers? A: Yes, MM74HC259M is designed to operate at high speeds, making it suitable for applications requiring fast data transfers.

  6. Q: Can I cascade multiple MM74HC259M chips together? A: Yes, MM74HC259M can be cascaded to increase the number of addressable bits, allowing for larger data storage and control.

  7. Q: Does MM74HC259M have any built-in protection features? A: MM74HC259M has built-in ESD protection, which helps safeguard the chip against electrostatic discharge.

  8. Q: Can MM74HC259M be used in both parallel and serial data transfer modes? A: MM74HC259M is primarily used for parallel data transfer, but it can also be used in serial mode by connecting the outputs to the inputs of subsequent chips.

  9. Q: What are some common applications of MM74HC259M? A: MM74HC259M is commonly used in address decoding, memory interfacing, data multiplexing, and general-purpose digital systems.

  10. Q: Where can I find more information about MM74HC259M? A: You can refer to the datasheet provided by the manufacturer or visit their official website for detailed information on MM74HC259M's specifications and application notes.

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