Encyclopedia Entry: 74LVT574SJX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Level Shifter
• Characteristics: High-speed, low-voltage, octal D-type flip-flop with 3-state outputs
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: The 74LVT574SJX is a versatile IC that facilitates the conversion of logic levels in digital circuits.
• Packaging/Quantity: Available in reels or tubes, typically containing 250 units.

Specifications

• Supply Voltage: 2.7V to 3.6V
• Logic Family: LVT (Low-Voltage TTL)
• Number of Flip-Flops: 8
• Output Type: 3-state
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5 ns (max)
• Input Capacitance: 4 pF (typ)
• Output Capacitance: 6 pF (typ)

Detailed Pin Configuration

The 74LVT574SJX has a total of 20 pins, which are assigned 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. CP (Clock Pulse)
12. MR (Master Reset)
13. Q0 (Flip-Flop Output 0)
14. Q1 (Flip-Flop Output 1)
15. Q2 (Flip-Flop Output 2)
16. Q3 (Flip-Flop Output 3)
17. Q4 (Flip-Flop Output 4)
18. Q5 (Flip-Flop Output 5)
19. Q6 (Flip-Flop Output 6)
20. VCC (Supply Voltage)

Functional Features

• High-speed operation allows for efficient data transfer.
• Low-voltage compatibility makes it suitable for modern digital systems.
• 3-state outputs enable bus sharing and reduce contention issues.
• Master Reset (MR) input allows for synchronous reset of all flip-flops.
• Output Enable (OE) input controls the tri-state outputs.

Advantages and Disadvantages

Advantages: - Fast propagation delay ensures quick response in digital circuits. - Low-voltage operation reduces power consumption. - 3-state outputs facilitate bus sharing and improve system efficiency.

Disadvantages: - Limited voltage range (2.7V to 3.6V) restricts its use in certain applications. - Not suitable for high-power or high-current applications.

Working Principles

The 74LVT574SJX operates as an octal D-type flip-flop with 3-state outputs. It receives data inputs (D0-D7) and a clock pulse (CP) to latch the input values into the flip-flops. The master reset (MR) input allows for synchronous reset of all flip-flops, while the output enable (OE) input controls the tri-state outputs. The IC converts logic levels between different sections of a digital circuit, ensuring proper signal compatibility.

Detailed Application Field Plans

The 74LVT574SJX finds application in various digital systems, including: - Microprocessors and microcontrollers - Data communication systems - Memory modules - Industrial automation equipment - Consumer electronics

Alternative Models

• 74LVTH574: Similar functionality with higher speed and lower power consumption.
• 74HCT574: Compatible with a wider voltage range but operates at slower speeds.
• 74ACT574: Faster operation but requires a higher supply voltage.

In conclusion, the 74LVT574SJX is a versatile integrated circuit used for logic level shifting in digital circuits. Its high-speed operation, low-voltage compatibility, and 3-state outputs make it suitable for various applications. However, its limited voltage range and unsuitability for high-power applications should be considered when selecting alternative models.