SN74F543DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Buffer/Line Driver
• Characteristics: High-speed, non-inverting, 8-bit bus interface
• Package: SSOP (Shrink Small Outline Package)
• Essence: Provides bidirectional buffering and line driving capabilities for digital signals
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Logic Family: F series
• Number of Bits: 8
• Supply Voltage Range: 4.5V to 5.5V
• Input/Output Type: Tri-State
• Output Current: ±24mA
• Propagation Delay Time: 6ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74F543DBR has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) 1
2. A1 (Data Input/Output) 1
3. B1 (Data Input/Output) 1
4. GND (Ground)
5. B2 (Data Input/Output) 2
6. A2 (Data Input/Output) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. D1 (Data Input/Output) 1
10. D2 (Data Input/Output) 2
11. C1 (Data Input/Output) 1
12. C2 (Data Input/Output) 2
13. DIR (Direction Control)
14. LE (Latch Enable)
15. CLK (Clock Input)
16. GND (Ground)
17. Q1 (Data Output) 1
18. Q2 (Data Output) 2
19. Q3 (Data Output) 3
20. Q4 (Data Output) 4

Functional Features

• Bidirectional buffering: Allows data to be transmitted in both directions on the bus.
• Line driving capabilities: Provides strong output current to drive long or heavily loaded lines.
• Tri-State outputs: Enables multiple devices to share a common bus without interference.
• Latch Enable (LE) and Clock (CLK) inputs: Facilitates synchronous operation.

Advantages and Disadvantages

Advantages: - High-speed operation - Non-inverting buffer - Tri-State outputs for bus sharing - Suitable for bidirectional communication

Disadvantages: - Limited supply voltage range - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74F543DBR is designed to buffer and drive digital signals on an 8-bit bus. It operates by receiving input data from one side of the bus and transmitting it to the other side, while also providing strong output current to drive the bus lines. The direction of data flow is controlled by the DIR input. The latch enable (LE) and clock (CLK) inputs allow for synchronous operation.

Detailed Application Field Plans

The SN74F543DBR is commonly used in various applications that require bidirectional buffering and line driving capabilities. Some of its typical application fields include:

1. Microprocessor systems
2. Data communication networks
3. Industrial automation
4. Instrumentation and measurement equipment
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74F244DBR: Octal Buffer/Line Driver with Tri-State Outputs
2. SN74F541DBR: Octal Buffer/Line Driver with 3-State Outputs
3. SN74F573DBR: Octal D-Type Transparent Latch with 3-State Outputs
4. SN74F373DBR: Octal Transparent D-Type Latch with 3-State Outputs
5. SN74F541DW: Octal Buffer/Line Driver with 3-State Outputs (SOIC package)

These alternative models offer similar functionality and can be used as substitutes for the SN74F543DBR in various applications.

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