SN74LVC543ADWG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-voltage, octal D-type flip-flop with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit) package
• Essence: Logic level shifting and data storage
• Packaging/Quantity: Tape and reel packaging, quantity varies based on customer requirements

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 200MHz
• Number of Flip-Flops: 8

Detailed Pin Configuration

The SN74LVC543ADWG4 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Output enable control input
2. CP (Clock Pulse) - Clock input for flip-flop operation
3. D0-D7 (Data Inputs) - Data inputs for each flip-flop
4. Q0-Q7 (Outputs) - Outputs for each flip-flop
5. GND (Ground) - Ground reference
6. VCC (Supply Voltage) - Positive supply voltage

Functional Features

• Octal D-type flip-flop with 3-state outputs
• Provides logic level shifting between different voltage domains
• Allows bidirectional data flow between systems operating at different voltage levels
• High-speed operation with a maximum frequency of 200MHz
• Low-voltage operation, suitable for battery-powered devices
• 3-state outputs allow multiple devices to share a common bus

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low-voltage operation reduces power consumption - 3-state outputs facilitate bus sharing among multiple devices

Disadvantages: - Limited number of flip-flops (8 in this case) - May require additional components for voltage level translation in complex systems

Working Principles

The SN74LVC543ADWG4 is designed to shift logic levels between different voltage domains. It uses D-type flip-flops to store and transfer data. The clock pulse (CP) input controls the timing of the flip-flop operation. When the output enable (OE) input is high, the outputs (Q0-Q7) are in a high-impedance state, allowing other devices to drive the shared bus. When OE is low, the inputs (D0-D7) are latched and transferred to the outputs.

Detailed Application Field Plans

The SN74LVC543ADWG4 is commonly used in various applications, including:

1. Microcontroller interfacing: It allows communication between microcontrollers operating at different voltage levels.
2. Level shifting in communication protocols: It facilitates data exchange between devices using different logic voltage standards, such as TTL and CMOS.
3. Bus sharing in multiprocessor systems: It enables multiple processors to share a common bus while operating at different voltage levels.
4. Battery-powered devices: Its low-voltage operation makes it suitable for portable electronics, where power efficiency is crucial.

Detailed and Complete Alternative Models

1. SN74LVC541A: Octal buffer/line driver with 3-state outputs
2. SN74LVC573A: Octal transparent latch with 3-state outputs
3. SN74LVC244A: Octal buffer/line driver with 3-state outputs and voltage translation capabilities

These alternative models offer similar functionality to the SN74LVC543ADWG4 and can be used as replacements based on specific application requirements.

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