Encyclopedia Entry: 74LVC543AD,118

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: Low Voltage CMOS Octal D-Type Flip-Flop with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74LVC543AD,118 is a versatile logic level shifter IC that allows bidirectional voltage translation between different logic levels.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 100 MHz
• Number of Pins: 20

Detailed Pin Configuration

The 74LVC543AD,118 IC has a total of 20 pins, which are assigned specific functions as follows:

1. OE (Output Enable) - Active low output enable input
2. CP (Clock Pulse) - Clock input for flip-flop operation
3. D0-D7 (Data Inputs) - Eight data inputs for the flip-flops
4. Q0-Q7 (Outputs) - Eight outputs from the flip-flops
5. GND (Ground) - Ground reference
6. VCC (Supply Voltage) - Positive supply voltage
7. DIR (Direction Control) - Direction control input for data flow
8. LE (Latch Enable) - Latch enable input for storing data

Functional Features

• Bidirectional Voltage Translation: The 74LVC543AD,118 allows for seamless translation of logic levels between different voltage domains.
• 3-State Outputs: The IC features 3-state outputs, enabling the connection of multiple devices without bus contention.
• High-Speed Operation: With a maximum operating frequency of 100 MHz, it is suitable for high-speed applications.
• Low Power Consumption: The IC operates at low power levels, making it energy-efficient.

Advantages and Disadvantages

Advantages: - Versatile logic level shifting capabilities - 3-state outputs for bus sharing - High-speed operation - Low power consumption

Disadvantages: - Limited voltage range (1.65V to 5.5V) - Requires careful consideration of input/output voltage compatibility

Working Principles

The 74LVC543AD,118 utilizes flip-flops and level-shifting circuitry to achieve bidirectional voltage translation. It operates based on clock signals and data inputs, allowing for the transfer of information between different logic levels.

Detailed Application Field Plans

The 74LVC543AD,118 finds applications in various fields, including: 1. Microcontroller interfacing 2. Data communication systems 3. Industrial automation 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LVC543AD,118 include: - SN74LVC543A - MC74LVC543A - CD74LVC543A - 74HC543

These alternatives can be considered based on specific requirements and availability.

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