74LVQ573SJ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop / Latch
• Characteristics: Low-voltage, Quad D-type transparent latch with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74LVQ573SJ is a latch IC that can store and control data in digital circuits.
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V (minimum), Vcc + 0.5V (maximum)
• Low-Level Input Voltage: -0.5V (minimum), 0.8V (maximum)
• High-Level Output Voltage: Vcc - 0.6V (minimum), Vcc (maximum)
• Low-Level Output Voltage: 0.4V (minimum), 0.1V (maximum)
• Maximum Operating Frequency: 200MHz

Detailed Pin Configuration

The 74LVQ573SJ has a total of 20 pins, which are arranged as follows:

+-----+--+-----+ D0 -|1 +--+ 20|- Vcc D1 -|2 |- GND D2 -|3 |- Q0 D3 -|4 |- Q1 D4 -|5 |- Q2 D5 -|6 |- Q3 D6 -|7 |- LE (Latch Enable) D7 -|8 |- OE (Output Enable) GND -|9 |- CP (Clock Pulse) Q0 -|10 |- D7 Q1 -|11 |- D6 Q2 -|12 |- D5 Q3 -|13 |- D4 GND -|14 |- D3 D0 -|15 |- D2 D1 -|16 |- D1 Vcc -|17 |- D0 +-------------+

Functional Features

• Quad D-type transparent latch: The IC can store and control four separate data inputs (D0-D3) using the latch functionality.
• 3-state outputs: The outputs (Q0-Q3) can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.
• Latch Enable (LE): The LE pin controls when the data inputs are latched and stored in the IC.
• Output Enable (OE): The OE pin enables or disables the outputs, allowing for easy control of the data flow.

Advantages and Disadvantages

Advantages: - Low-voltage operation allows for compatibility with a wide range of digital systems. - 3-state outputs enable efficient bus sharing between multiple devices. - Compact SOIC package offers space-saving integration.

Disadvantages: - Limited maximum operating frequency compared to some other ICs. - Lack of additional features such as edge-triggered functionality.

Working Principles

The 74LVQ573SJ operates based on the principles of digital logic. When the Latch Enable (LE) input is high, the data inputs (D0-D3) are latched and stored internally. The stored data can then be accessed through the output pins (Q0-Q3). The Output Enable (OE) input controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The 74LVQ573SJ is commonly used in various digital systems where data storage and control are required. Some application fields include: - Microcontrollers and microprocessors - Data communication systems - Memory modules - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

• 74HC573: Similar latch IC with higher operating frequency but higher power consumption.
• 74HCT573: Latch IC with increased noise immunity and compatibility with both 5V and 3.3V systems.
• SN74LV573A: Low-voltage octal transparent latch with similar features.

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