74F543SC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, octal transceiver with tri-state outputs
• Package: 20-pin small outline integrated circuit (SOIC)
• Essence: Facilitates bidirectional data transfer between two buses
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: 74F
• Number of Pins: 20
• Operating Voltage: 4.5V to 5.5V
• Input/Output Compatibility: TTL-compatible
• Propagation Delay: 6 ns (typical)
• Output Drive Capability: ±24 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74F543SC has a total of 20 pins, which are assigned specific functions as follows:

1. Pin 1: Output Enable (OE) for Port A
2. Pin 2: Data Input/Output (I/O) for Port A, Bit 0
3. Pin 3: I/O for Port A, Bit 1
4. Pin 4: I/O for Port A, Bit 2
5. Pin 5: I/O for Port A, Bit 3
6. Pin 6: I/O for Port A, Bit 4
7. Pin 7: I/O for Port A, Bit 5
8. Pin 8: I/O for Port A, Bit 6
9. Pin 9: I/O for Port A, Bit 7
10. Pin 10: Ground (GND)
11. Pin 11: Output Enable (OE) for Port B
12. Pin 12: I/O for Port B, Bit 0
13. Pin 13: I/O for Port B, Bit 1
14. Pin 14: I/O for Port B, Bit 2
15. Pin 15: I/O for Port B, Bit 3
16. Pin 16: I/O for Port B, Bit 4
17. Pin 17: I/O for Port B, Bit 5
18. Pin 18: I/O for Port B, Bit 6
19. Pin 19: I/O for Port B, Bit 7
20. Pin 20: VCC (+5V)

Functional Features

• Bidirectional data transfer between two buses (Port A and Port B)
• Tri-state outputs allow multiple devices to share the same bus without interference
• Output Enable (OE) pins control the direction of data flow
• TTL-compatible inputs and outputs ensure compatibility with other digital logic circuits
• High-speed operation with low propagation delay

Advantages and Disadvantages

Advantages

• Enables efficient bidirectional data transfer in digital systems
• Tri-state outputs facilitate bus sharing and reduce conflicts
• High-speed operation allows for quick data transmission
• Wide operating temperature range (-40°C to +85°C) ensures reliability in various environments

Disadvantages

• Limited number of input/output pins (8 per port)
• Requires external pull-up or pull-down resistors for proper bus operation
• Not suitable for applications requiring higher voltage levels

Working Principles

The 74F543SC is an octal transceiver that enables bidirectional data transfer between two buses, Port A and Port B. The direction of data flow is controlled by the Output Enable (OE) pins. When OE is high, data can be transmitted from Port A to Port B, and when OE is low, data can be transmitted from Port B to Port A.

The tri-state outputs of the 74F543SC allow multiple devices to share the same bus without interference. When the OE pin is high, the outputs are in a high-impedance state, effectively disconnecting the device from the bus.

The inputs and outputs of the 74F543SC are TTL-compatible, ensuring compatibility with other digital logic circuits. The IC operates at high speeds with low propagation delay, making it suitable for applications that require quick data transmission.

Detailed Application Field Plans

The 74F543SC can be used in various digital systems where bidirectional data transfer between two buses is required. Some potential application fields include:

1. Microprocessor-based systems
2. Data communication equipment
3. Industrial control systems
4. Automotive electronics
5. Test and measurement instruments

Alternative Models

There are several alternative models available that offer similar functionality to the 74F543SC. Some notable alternatives include:

1. SN74ALS543: Octal bus transceiver with tri-state outputs
2. CD54HC543: High-speed CMOS octal bus transceiver
3. MC