SN74BCT245NSR

Product Overview

• Category: Integrated Circuit
• Use: Bus Transceiver
• Characteristics: High-speed, Bi-directional, Non-inverting
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between two bidirectional bus systems
• 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: 6ns (typical)
• Output Drive Capability: ±24mA

Pin Configuration

The SN74BCT245NSR has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Data Input/Output for Port A
3. B1 - Data Input/Output for Port B
4. A2 - Data Input/Output for Port A
5. B2 - Data Input/Output for Port B
6. A3 - Data Input/Output for Port A
7. B3 - Data Input/Output for Port B
8. A4 - Data Input/Output for Port A
9. B4 - Data Input/Output for Port B
10. GND (Ground) - Ground Reference
11. B5 - Data Input/Output for Port B
12. A5 - Data Input/Output for Port A
13. B6 - Data Input/Output for Port B
14. A6 - Data Input/Output for Port A
15. B7 - Data Input/Output for Port B
16. A7 - Data Input/Output for Port A
17. VCC - Positive Power Supply
18. DIR (Direction Control) - Direction Control Input
19. B8 - Data Input/Output for Port B
20. A8 - Data Input/Output for Port A

Functional Features

• Bi-directional data transfer between two bus systems
• Non-inverting logic ensures compatibility with various systems
• High-speed operation for efficient data transmission
• Output enable control for flexible usage

Advantages and Disadvantages

Advantages: - Allows bidirectional communication between different bus systems - Non-inverting logic simplifies interfacing with other devices - High-speed operation enables quick data transfer

Disadvantages: - Requires careful handling due to sensitivity to voltage fluctuations - Limited output drive capability may restrict use in certain applications

Working Principles

The SN74BCT245NSR is a bus transceiver that facilitates the bidirectional transfer of data between two bus systems. It operates by receiving data from one bus and transmitting it to the other, while also allowing data flow in the opposite direction. The non-inverting logic ensures compatibility with various systems, making it suitable for diverse applications.

Detailed Application Field Plans

The SN74BCT245NSR finds application in various fields where bidirectional data transfer between different bus systems is required. Some specific areas of use include:

1. Industrial Automation: Used in PLCs (Programmable Logic Controllers) for communication between different modules.
2. Automotive Electronics: Facilitates data exchange between various vehicle subsystems, such as engine control units and infotainment systems.
3. Telecommunications: Enables data transfer between different network interfaces, such as Ethernet and RS-232.
4. Computer Peripherals: Used in printers, scanners, and external storage devices for data communication with the host computer.

Detailed and Complete Alternative Models

1. SN74LVC245A: Low Voltage CMOS Bus Transceiver with 3.3V compatibility.
2. SN74HCT245: High-Speed CMOS Bus Transceiver with TTL compatibility.
3. SN74LVTH245A: Low Voltage CMOS Bus Transceiver with 3.3V compatibility and enhanced ESD protection.

These alternative models offer similar functionality to the SN74BCT245NSR but may have different voltage compatibility, speed, or additional features.

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