Encyclopedia Entry: 74VHC574MX

Product Overview

Category

The 74VHC574MX belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This IC is commonly used in digital electronics for storing and transferring data. It serves as an octal D-type flip-flop with a transparent latch.

Characteristics

• High-speed operation: The 74VHC574MX offers fast data transfer rates, making it suitable for applications requiring quick data processing.
• Low power consumption: This IC is designed to operate efficiently while consuming minimal power.
• Wide voltage range: It can function within a broad voltage range, typically between 2V and 5.5V.
• Compatibility: The 74VHC574MX is compatible with various logic families, including TTL, CMOS, and LSTTL.

Package and Quantity

The 74VHC574MX is available in a small outline integrated circuit (SOIC) package. It consists of 20 pins and is supplied in tape and reel packaging. Each reel typically contains 2500 units.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 200MHz
• Propagation Delay Time: 4.3ns (typical)

Pin Configuration

The 74VHC574MX has a total of 20 pins, which are assigned specific functions. The pin configuration is 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. OE (Output Enable)
11. Q0 (Flip-Flop Output 0)
12. Q1 (Flip-Flop Output 1)
13. Q2 (Flip-Flop Output 2)
14. Q3 (Flip-Flop Output 3)
15. Q4 (Flip-Flop Output 4)
16. Q5 (Flip-Flop Output 5)
17. Q6 (Flip-Flop Output 6)
18. Q7 (Flip-Flop Output 7)
19. VCC (Positive Power Supply)
20. GND (Ground)

Functional Features

The 74VHC574MX offers the following functional features:

• Transparent latch: The IC has a transparent latch that allows data to be transferred to the outputs when the latch enable (OE) input is high.
• Octal flip-flop: It consists of eight individual D-type flip-flops, each capable of storing one bit of data.
• Edge-triggered operation: The flip-flops are triggered by the rising edge of the clock signal, ensuring synchronized data transfer.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing.
• Low power consumption makes it suitable for battery-powered devices.
• Wide voltage range allows compatibility with various logic families.
• Compact SOIC package facilitates easy integration into circuit designs.

Disadvantages

• Limited number of flip-flops (eight in total) may restrict its use in applications requiring a higher number of storage elements.
• Not suitable for applications requiring extremely high clock frequencies beyond 200MHz.

Working Principles

The 74VHC574MX operates based on the principles of flip-flops and latch enable signals. When the latch enable (OE) input is high, the data inputs (D0-D7) are transferred to the corresponding flip-flop outputs (Q0-Q7) on the rising edge of the clock signal. The transparent latch allows continuous data transfer as long as the OE input remains high.

Application Field Plans

The 74VHC574MX finds applications in various digital systems, including but not limited to: - Microcontrollers - Data storage devices - Communication equipment - Industrial automation systems - Consumer electronics

Alternative Models

For users seeking alternative options, the following ICs can be considered: - 74HC574: Similar functionality, but operates at a lower voltage range (2V to 6V). - 74LS574: Compatible with TTL logic family, but has slower speed compared to the VHC series. - SN74LV574A: Low-voltage version with similar characteristics, suitable for battery-powered applications.

These alternatives provide similar functionalities to the 74VHC574MX while offering slight variations in voltage range, speed, or compatibility with different logic families.

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