Encyclopedia Entry: 74VHC594TTR

Product Overview

Category

The 74VHC594TTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of shift registers.

Use

This IC is commonly used for serial-in, parallel-out (SIPO) data shifting applications. It allows for the conversion of serial data into parallel format, making it suitable for various digital systems and communication protocols.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with both TTL and CMOS logic levels
• Output capability to drive standard TTL loads
• Schmitt-trigger action on all inputs

Package

The 74VHC594TTR is available in a small-outline transistor (SOT) package. This package type ensures easy integration into circuit boards and provides protection against environmental factors such as moisture and dust.

Essence

The essence of the 74VHC594TTR lies in its ability to efficiently convert serial data to parallel format, enabling seamless data transfer and synchronization within digital systems.

Packaging/Quantity

The 74VHC594TTR is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 100MHz
• Number of Shift Register Stages: 8
• Output Type: Tri-State

Detailed Pin Configuration

The 74VHC594TTR consists of 16 pins, each serving a specific function:

1. Serial Data Input (DS)
2. Serial Data Output (QH')
3. Clock Input (CP)
4. Output Enable (OE)
5. Serial Data Input (DS)
6. Serial Data Output (QH')
7. Clock Input (CP)
8. Output Enable (OE)
9. Ground (GND)
10. Serial Data Input (DS)
11. Serial Data Output (QH')
12. Clock Input (CP)
13. Output Enable (OE)
14. Serial Data Input (DS)
15. Serial Data Output (QH')
16. Supply Voltage (VCC)

Functional Features

• Serial-to-parallel data conversion
• Tri-state outputs for easy bus sharing
• Schmitt-trigger action for noise immunity
• Wide operating voltage range for compatibility with various systems
• High-speed operation for efficient data transfer

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick data processing.
• Low power consumption makes it suitable for battery-powered devices.
• Compatibility with both TTL and CMOS logic levels ensures versatility in system integration.
• Tri-state outputs enable easy bus sharing among multiple devices.

Disadvantages

• Limited number of shift register stages (8) may not be sufficient for certain applications requiring larger data storage.
• Lack of built-in error detection or correction mechanisms.

Working Principles

The 74VHC594TTR operates based on the principle of serial-in, parallel-out shifting. It receives serial data through the DS input pin and shifts it internally based on the clock signal provided at the CP input pin. The shifted data is then available in parallel format at the QH' output pins. The OE pin controls the tri-state outputs, allowing for bus sharing and efficient data transfer.

Detailed Application Field Plans

The 74VHC594TTR finds application in various fields, including but not limited to:

1. Communication Systems: Used for data serialization and deserialization in communication protocols such as UART, SPI, and I2C.
2. Display Systems: Enables control of multiple display segments or pixels in LED matrices or LCD panels.
3. Data Storage: Utilized for temporary storage and retrieval of data in microcontrollers and digital signal processors.
4. Industrial Automation: Facilitates control and synchronization of sensors, actuators, and other peripheral devices in automation systems.

Detailed and Complete Alternative Models

1. 74HC595: Similar to the 74VHC594TTR, but operates at a lower voltage range (2.0V to 6.0V).
2. CD4094: Offers similar functionality with a wider operating voltage range (3.0V to 18.0V).
3. SN74LS164: Provides comparable serial-in, parallel-out shifting capabilities with compatibility for TTL logic levels.

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

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