SN74ABT651DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, low-power, bidirectional data communication
• Package: SSOP (Shrink Small Outline Package)
• Essence: Transfers data between two 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
• Data Rate: Up to 100 Mbps
• Number of Channels: 8

Detailed Pin Configuration

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

Functional Features

• Bidirectional data transfer between two buses
• Supports voltage level translation between 3.3V and 5V systems
• High-speed operation with minimal propagation delay
• Output enable control for bus isolation

Advantages and Disadvantages

Advantages: - Enables communication between buses with different voltage levels - Supports high-speed data transfer - Low power consumption - Compact package size

Disadvantages: - Limited number of channels (8 in this case) - Requires careful consideration of voltage compatibility

Working Principles

The SN74ABT651DBR is a bus transceiver IC that facilitates bidirectional data transfer between two buses. It operates by translating the voltage levels of the input data from one bus to match the voltage levels of the other bus. This allows seamless communication between buses operating at different voltage levels.

The IC uses an output enable pin to control the direction of data flow. When the output enable pin is active, the IC transfers data from Bus A to Bus B. Conversely, when the output enable pin is inactive, the IC transfers data from Bus B to Bus A. This bidirectional functionality makes it suitable for various applications where data needs to be exchanged between different systems or subsystems.

Detailed Application Field Plans

The SN74ABT651DBR is commonly used in the following application fields:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels, facilitating data exchange between different parts of a system.
2. Industrial Automation: It can be used in industrial automation systems to connect sensors, actuators, and control units operating at different voltage levels.
3. Communication Systems: It is suitable for use in communication systems where data needs to be transferred between different modules or devices with varying voltage requirements.
4. Automotive Electronics: It finds applications in automotive electronics, allowing data transfer between different components of a vehicle's electrical system.

Detailed and Complete Alternative Models

1. SN74ABT652DBR: Similar to SN74ABT651DBR but with 16 channels instead of 8.
2. SN74ABT653DBR: Similar to SN74ABT651DBR but with 24 channels instead of 8.
3. SN74ABT654DBR: Similar to SN74ABT651DBR but with 32 channels instead of 8.

These alternative models offer increased channel count, providing more flexibility in connecting multiple buses.

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