CD74HC259MG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Control
• Characteristics: High-Speed, 8-Bit Addressable Latch/Shift Register
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The CD74HC259MG4 is a versatile integrated circuit that combines the functionality of an 8-bit addressable latch and a shift register. It is designed to store and control data in various applications.
• Packaging/Quantity: The CD74HC259MG4 is typically available in reels or tubes, with a quantity of 250 or 2000 units per reel/tube.

Specifications

The CD74HC259MG4 has the following specifications:

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 3.15V (minimum), 6V (maximum)
• Low-Level Input Voltage: 0.35V (maximum)
• High-Level Output Current: -5.2mA (maximum)
• Low-Level Output Current: 5.2mA (maximum)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CD74HC259MG4 has a total of 16 pins, which are assigned specific functions as follows:

1. GND (Ground)
2. A0 (Address Input 0)
3. A1 (Address Input 1)
4. A2 (Address Input 2)
5. A3 (Address Input 3)
6. A4 (Address Input 4)
7. A5 (Address Input 5)
8. MR (Master Reset)
9. OE (Output Enable)
10. SER (Serial Data Input)
11. CLK (Clock Input)
12. Q0 (Parallel Output 0)
13. Q1 (Parallel Output 1)
14. Q2 (Parallel Output 2)
15. Q3 (Parallel Output 3)
16. VCC (Supply Voltage)

Functional Features

The CD74HC259MG4 offers the following functional features:

• Addressable Latch: The IC can store data at a specific address location, allowing for easy retrieval and control.
• Shift Register: It can shift data from one stage to another, enabling serial-to-parallel or parallel-to-serial data conversion.
• Master Reset: The MR pin allows for resetting the latch and register to their initial state.
• Output Enable: The OE pin enables or disables the outputs, providing flexibility in controlling data flow.
• High-Speed Operation: The CD74HC259MG4 operates at high speeds, making it suitable for time-critical applications.

Advantages and Disadvantages

Advantages of the CD74HC259MG4 include:

• Versatility: Combines latch and shift register functionality in a single IC.
• Compact Design: The SOIC package ensures a small footprint, saving space on PCBs.
• Wide Operating Voltage Range: Can be used with a variety of power supply voltages.
• High-Speed Operation: Enables efficient data storage and control in time-sensitive applications.

Disadvantages of the CD74HC259MG4 include:

• Limited Data Storage: The IC can store up to 8 bits of data, which may not be sufficient for certain applications requiring larger data storage capacity.
• Lack of Built-in Error Detection: The IC does not have built-in error detection or correction mechanisms, which may be necessary in some applications.

Working Principles

The CD74HC259MG4 operates based on the principles of latch and shift register circuits. When the clock input (CLK) receives a pulse, the data at the serial input (SER) is shifted into the first stage of the shift register. The data in each stage is then transferred to the next stage upon receiving subsequent clock pulses.

The latch functionality allows the data to be stored at specific address locations determined by the address inputs (A0-A5). The stored data can be accessed and outputted in parallel through the Q0-Q3 pins.

Detailed Application Field Plans

The CD74HC259MG4 finds applications in various fields, including:

1. Data Storage Systems: Used in memory modules, where it enables efficient data storage and retrieval.
2. Control Systems: Employed in control units for addressing and controlling multiple devices or components.
3. Communication Systems: Facilitates serial-to-parallel or parallel-to-serial data conversion in communication protocols.
4. Display Systems: Enables addressing and control of display panels or segments in electronic displays.
5. Industrial Automation: Utilized in automation systems for data processing and control operations.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD74HC259MG4 include:

1. 74HC595: An 8-bit shift register with output latches, commonly used in LED matrix displays.
2. CD