Encyclopedia Entry: 74VHC595MX

Product Overview

Category

The 74VHC595MX belongs to the category of integrated circuits (ICs) and specifically falls under the family of shift registers.

Use

This IC is primarily used for serial-in, parallel-out data shifting and storage applications. It allows for efficient control and manipulation of digital signals in various electronic systems.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with both CMOS and TTL logic levels
• Output capability suitable for driving LEDs and other low-power devices

Package

The 74VHC595MX is available in a small outline integrated circuit (SOIC) package. This package offers compactness and ease of integration into electronic circuits.

Essence

The essence of the 74VHC595MX lies in its ability to efficiently handle serial data transfer and parallel output generation, making it an essential component in many digital systems.

Packaging/Quantity

The 74VHC595MX is typically sold in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 33 MHz
• Number of Shift Register Stages: 8
• Output Current: ±6 mA

Detailed Pin Configuration

The 74VHC595MX has a total of 16 pins, each serving a specific function:

1. Serial Data Input (DS)
2. Serial Data Output (QH')
3. Serial Clock Input (SHCP)
4. Storage Register Clock Input (STCP)
5. Master Reset Input (MR)
6. Output Enable Input (OE')
7. Q0 Output
8. Q1 Output
9. Q2 Output
10. Q3 Output
11. Q4 Output
12. Q5 Output
13. Q6 Output
14. Q7 Output
15. Ground (GND)
16. Positive Supply Voltage (VCC)

Functional Features

The 74VHC595MX offers the following functional features:

• Serial-to-parallel data conversion
• Parallel output generation
• Shift register with storage capability
• Master reset for clearing the shift register
• Output enable for controlling the output state
• Compatibility with various logic levels

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer
• Low power consumption contributes to energy efficiency
• Wide operating voltage range enhances versatility
• Compatibility with both CMOS and TTL logic levels simplifies integration
• Output capability suitable for driving LEDs and low-power devices

Disadvantages

• Limited number of shift register stages (8 in this case)
• May require additional components for more complex applications

Working Principles

The 74VHC595MX operates based on the principle of serial-in, parallel-out shifting. It receives serial data through the DS pin and shifts it through the internal shift register upon each rising edge of the serial clock input (SHCP). The parallel output is generated at the Q0-Q7 pins based on the stored data in the shift register. The storage register clock input (STCP) latches the shifted data into the storage register, allowing it to be held until a new set of data is received.

Detailed Application Field Plans

The 74VHC595MX finds extensive application in various electronic systems, including but not limited to:

1. LED Matrix Displays: Controlling multiple LEDs efficiently using serial data transfer and parallel output generation.
2. Data Communication Systems: Serial-to-parallel conversion for transmitting and receiving data.
3. Industrial Automation: Shift register functionality for controlling and monitoring multiple devices.
4. Robotics: Efficient control of multiple actuators and sensors through parallel output generation.

Detailed and Complete Alternative Models

1. 74HC595: Similar to the 74VHC595MX, but operates at a slightly higher voltage range (2.0V to 6.0V).
2. SN74HC595: A shift register IC from Texas Instruments, offering similar functionality to the 74VHC595MX.
3. CD4094: A different type of shift register IC with similar features, manufactured by various suppliers.

These alternative models provide similar functionality to the 74VHC595MX and can be considered as alternatives based on specific requirements.

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