Encyclopedia Entry: 74LVT574WM

Product Overview

Category

The 74LVT574WM belongs to the category of integrated circuits (ICs), specifically, it falls under the category of flip-flops.

Use

This product is commonly used in digital electronics for storing and transferring binary data. It is primarily utilized in applications where sequential logic is required, such as in microprocessors, memory systems, and communication devices.

Characteristics

• The 74LVT574WM is a high-speed octal D-type flip-flop with a transparent latch.
• It operates on a wide voltage range, typically between 2.7V and 3.6V.
• This IC offers low power consumption and high noise immunity.
• It has a compact size and is designed for surface mount technology (SMT) applications.

Package and Quantity

The 74LVT574WM is available in a small outline integrated circuit (SOIC) package. It consists of 20 pins and is designed for easy soldering onto printed circuit boards (PCBs). It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• High-Level Input Voltage: 2.0V (minimum), 3.85V (maximum)
• Low-Level Input Voltage: 0.8V (minimum), 1.15V (maximum)
• High-Level Output Voltage: 2.4V (minimum), VCC (maximum)
• Low-Level Output Voltage: GND (minimum), 0.4V (maximum)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 74LVT574WM has a total of 20 pins, each serving a specific function. Here is the detailed pin configuration:

1. Pin 1: Output Q0
2. Pin 2: Output Q1
3. Pin 3: Output Q2
4. Pin 4: Output Q3
5. Pin 5: Output Q4
6. Pin 6: Output Q5
7. Pin 7: Output Q6
8. Pin 8: Output Q7
9. Pin 9: GND (Ground)
10. Pin 10: Data Input D0
11. Pin 11: Data Input D1
12. Pin 12: Data Input D2
13. Pin 13: Data Input D3
14. Pin 14: Data Input D4
15. Pin 15: Data Input D5
16. Pin 16: Data Input D6
17. Pin 17: Data Input D7
18. Pin 18: Clock Input (CLK)
19. Pin 19: Clock Enable (CE)
20. Pin 20: Power Supply VCC

Functional Features

• The 74LVT574WM operates as an octal D-type flip-flop with a transparent latch.
• It has separate clock (CLK) and clock enable (CE) inputs for controlling the data transfer.
• The transparent latch allows the input data to be transferred to the outputs when the latch enable (LE) input is high.
• It offers edge-triggered functionality, where the data is captured on the rising edge of the clock signal.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Low power consumption makes it suitable for battery-powered devices. - Compact size and surface mount package facilitate easy integration into PCB designs. - Wide voltage range allows compatibility with various systems.

Disadvantages: - Limited output current capacity may restrict its use in certain applications. - Sensitivity to electrostatic discharge (ESD) requires proper handling during assembly and usage.

Working Principles

The 74LVT574WM operates based on the principles of sequential logic. When the clock enable (CE) input is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7) on the rising edge of the clock signal (CLK). The transparent latch enables the transfer of data when the latch enable (LE) input is high.

Application Field Plans

The 74LVT574WM finds extensive application in various digital systems, including: - Microprocessors and microcontrollers - Memory systems (RAM, ROM) - Communication devices (routers, switches) - Data storage systems - Industrial automation equipment

Alternative Models

For those seeking alternative options, here are some detailed and complete alternative models to the 74LVT574WM: 1. SN74LVC574A: Octal D-type flip-flop with 3-state outputs 2. CD74HCT574: High-speed CMOS octal D-type flip-flop 3. MC74VHC574: Octal D-type flip-flop with