SN74ABTH245DWG4

Product Overview

• Category: Integrated Circuit
• Use: Bus Transceiver
• Characteristics: High-speed, bidirectional, voltage-level translation
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between two bidirectional bus systems with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 20
• Logic Family: ABT (Advanced BiCMOS Technology)

Detailed Pin Configuration

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

Functional Features

• Bidirectional voltage-level translation between two bus systems
• High-speed operation for efficient data transfer
• Output enable control for disabling the outputs
• Direction control for selecting the direction of data flow
• Compatible with various logic families

Advantages and Disadvantages

Advantages: - Enables communication between bus systems with different voltage levels - Supports high-speed data transfer - Provides flexibility with output enable and direction control features

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

Working Principles

The SN74ABTH245DWG4 is a bidirectional bus transceiver that facilitates data transfer between two bus systems operating at different voltage levels. It utilizes advanced BiCMOS technology to achieve high-speed operation and efficient voltage-level translation.

The direction of data flow is controlled by the DIR pin, allowing the user to select whether data is transferred from Bus A to Bus B or vice versa. The OE pin enables or disables the outputs, providing additional control over the data transfer process.

When enabled, the transceiver actively translates the voltage levels of the input signals from one bus system to match the voltage requirements of the other bus system. This ensures seamless communication between the two systems while maintaining signal integrity.

Detailed Application Field Plans

1. Microcontroller Interfacing: The SN74ABTH245DWG4 can be used to interface microcontrollers operating at different voltage levels, enabling communication between them.
2. Industrial Automation: It can facilitate data exchange between various industrial automation devices, such as sensors, actuators, and controllers, operating at different voltage levels.
3. Communication Systems: The transceiver can be employed in communication systems to connect different modules or subsystems with varying voltage requirements.

Detailed and Complete Alternative Models

1. SN74LVC245A: Low Voltage CMOS Octal Bus Transceiver
2. SN74HCT245: High-Speed CMOS Octal Bus Transceiver
3. SN74LVCH245A: Low Voltage CMOS Octal Bus Transceiver with 3-State Outputs

These alternative models offer similar functionality and can be considered as alternatives to the SN74ABTH245DWG4 based on specific application requirements.

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