SN74ABT543ADBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, Bi-directional, 8-bit transceiver
• Package: SSOP (Shrink Small Outline Package)
• Essence: Transfers data between two bidirectional buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.5ns (typical)
• Output Current: ±12mA
• Input Capacitance: 4pF (typical)

Detailed Pin Configuration

The SN74ABT543ADBR has a total of 24 pins. The pin configuration is as follows:

1. OE (Output Enable) A
2. A1 (Data Bus A Bit 1)
3. A2 (Data Bus A Bit 2)
4. A3 (Data Bus A Bit 3)
5. A4 (Data Bus A Bit 4)
6. A5 (Data Bus A Bit 5)
7. A6 (Data Bus A Bit 6)
8. A7 (Data Bus A Bit 7)
9. A8 (Data Bus A Bit 8)
10. GND (Ground)
11. B8 (Data Bus B Bit 8)
12. B7 (Data Bus B Bit 7)
13. B6 (Data Bus B Bit 6)
14. B5 (Data Bus B Bit 5)
15. B4 (Data Bus B Bit 4)
16. B3 (Data Bus B Bit 3)
17. B2 (Data Bus B Bit 2)
18. B1 (Data Bus B Bit 1)
19. OE (Output Enable) B
20. VCC (Supply Voltage)
21. DIR (Direction Control)
22. GND (Ground)
23. NC (No Connection)
24. NC (No Connection)

Functional Features

• Bi-directional data transfer between two buses with different voltage levels
• High-speed operation for efficient data transmission
• Output enable control for disabling the outputs when not in use
• Direction control for selecting the direction of data flow

Advantages and Disadvantages

Advantages: - Allows interfacing between buses operating at different voltage levels - Supports bidirectional data transfer - High-speed operation for quick data transmission

Disadvantages: - Limited to 8-bit data transfer - Requires careful consideration of voltage compatibility between buses

Working Principles

The SN74ABT543ADBR is a bus transceiver that enables bidirectional data transfer between two buses with different voltage levels. It operates by controlling the direction of data flow using the DIR pin. When the DIR pin is set to logic high, data flows from Bus A to Bus B, and when it is set to logic low, data flows from Bus B to Bus A.

The transceiver also features output enable pins (OE A and OE B) that allow the user to disable the outputs when not in use. This feature helps conserve power and prevents unwanted data transfer.

Detailed Application Field Plans

The SN74ABT543ADBR is commonly used in various applications where bidirectional data transfer between buses with different voltage levels is required. Some of the typical application fields include:

1. Microcontroller Interfacing: The transceiver facilitates communication between microcontrollers operating at different voltage levels, enabling seamless data exchange.

2. Networking Equipment: It is used in networking devices such as routers and switches to interface between different bus architectures, ensuring efficient data transfer.

3. Industrial Automation: The transceiver finds applications in industrial automation systems where multiple devices with varying voltage levels need to exchange data.

4. Automotive Electronics: It is utilized in automotive electronics for connecting various subsystems that operate at different voltage levels, enabling reliable communication.

Detailed and Complete Alternative Models

1. SN74ABT543ADB: Similar to SN74ABT543ADBR but available in a different package (SSOP)
2. SN74ABT543APWR: Same functionality but offered in a different package (TSSOP)
3. SN74ABT543ADW: Similar features but provided in a wider SOIC package
4. SN74ABT543ADGVR: Equivalent functionality with additional ESD protection features

These alternative models offer similar functionality to the SN74ABT543ADBR but may vary in package type or additional features.

In conclusion, the SN74ABT543ADBR is a high-speed, bi-directional bus transceiver designed to facilitate data transfer between