SN74BCT543DWRG4

Product Overview

Category: Integrated Circuit (IC)

Use: The SN74BCT543DWRG4 is a high-speed octal bus transceiver with 3-state outputs. It is designed to interface between TTL and CMOS voltage levels, making it suitable for various applications in digital systems.

Characteristics: - High-speed operation - TTL-to-CMOS voltage level conversion - 3-state outputs for bus sharing - Octal configuration for efficient data transfer - Wide operating voltage range - Low power consumption

Package: The SN74BCT543DWRG4 is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package. This package offers compactness and ease of integration into electronic circuits.

Essence: The essence of the SN74BCT543DWRG4 lies in its ability to provide seamless communication between TTL and CMOS devices, enabling efficient data transfer across different voltage levels.

Packaging/Quantity: The SN74BCT543DWRG4 is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range:
  • High-Level (VIH): 2V to VCC + 0.5V
  • Low-Level (VIL): -0.5V to 0.8V
• Output Voltage Range:
  • High-Level (VOH): 2.4V (min)
  • Low-Level (VOL): 0.4V (max)
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay Time: 6ns (typical)
• Output Current: ±24mA

Pin Configuration

The SN74BCT543DWRG4 has a total of 20 pins. The pin configuration is as follows:

+---+--+---+ OE1 |1 +--+ 20| VCC A1 |2 19| OE2 B1 |3 18| B2 A2 |4 17| A3 B3 |5 16| B4 A4 |6 15| A5 B5 |7 14| B6 A6 |8 13| A7 B7 |9 12| B8 GND |10 11| OE3 +----------+

Functional Features

• Bidirectional data flow: The SN74BCT543DWRG4 allows data to be transmitted in both directions, enabling efficient communication between different parts of a digital system.
• 3-state outputs: The 3-state outputs enable bus sharing, allowing multiple devices to connect to the same bus without interfering with each other.
• Voltage level conversion: The IC converts TTL voltage levels to CMOS voltage levels and vice versa, ensuring compatibility between different types of devices.
• High-speed operation: The SN74BCT543DWRG4 operates at high speeds, making it suitable for applications that require fast data transfer.

Advantages and Disadvantages

Advantages: - Seamless interface between TTL and CMOS devices - Efficient bus sharing capability - Wide operating voltage range - Low power consumption - High-speed operation

Disadvantages: - Limited number of input/output pins (8 in each direction) - May require additional components for certain applications

Working Principles

The SN74BCT543DWRG4 operates by receiving data from one side and transmitting it to the other side bidirectionally. It converts the voltage levels of the input signals to ensure compatibility between TTL and CMOS devices. The 3-state outputs allow multiple devices to share the same bus without causing conflicts.

Detailed Application Field Plans

The SN74BCT543DWRG4 can be used in various applications, including: - Data communication systems - Microprocessor interfacing - Memory address decoding - Bus arbitration - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74BCT543DWRG4 include: - SN74ACT543: Advanced CMOS octal bus transceiver - SN74HCT543: High-speed CMOS octal bus transceiver - SN74LS543: Low-power Schottky TTL octal bus transceiver

These alternative models provide options with different characteristics and specifications, allowing designers to choose the most suitable IC for their specific requirements.

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