SN74ABT646DWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver and Register
• Characteristics: High-speed, low-power, bidirectional transceiver with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit) package
• Essence: The SN74ABT646DWR is a versatile IC that allows bidirectional data transfer between two buses of different voltage levels. It can also be used as a register for storing data.
• Packaging/Quantity: Available in reels of 2500 pieces

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
• Maximum Data Rate: 100MHz

Detailed Pin Configuration

The SN74ABT646DWR has a total of 24 pins. Here is the detailed pin configuration:

1. OE (Output Enable) - Output enable control pin
2. A1-A3 (Bus A Inputs) - Input pins for bus A
3. B1-B3 (Bus B Inputs) - Input pins for bus B
4. DIR (Direction Control) - Direction control pin
5. GND (Ground) - Ground reference pin
6. B4-B6 (Bus B Outputs) - Output pins for bus B
7. B7-B9 (Bus B Inputs) - Input pins for bus B
8. VCC (Supply Voltage) - Positive supply voltage pin
9. A4-A6 (Bus A Outputs) - Output pins for bus A
10. A7-A9 (Bus A Inputs) - Input pins for bus A
11. NC (No Connection) - No connection pin
12. B10-B12 (Bus B Outputs) - Output pins for bus B
13. B13-B15 (Bus B Inputs) - Input pins for bus B
14. GND (Ground) - Ground reference pin
15. A10-A12 (Bus A Outputs) - Output pins for bus A
16. A13-A15 (Bus A Inputs) - Input pins for bus A
17. VCC (Supply Voltage) - Positive supply voltage pin
18. DIR (Direction Control) - Direction control pin
19. OE (Output Enable) - Output enable control pin
20. NC (No Connection) - No connection pin
21. GND (Ground) - Ground reference pin
22. B16-B18 (Bus B Outputs) - Output pins for bus B
23. B19-B21 (Bus B Inputs) - Input pins for bus B
24. VCC (Supply Voltage) - Positive supply voltage pin

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• 3-state outputs allow multiple devices to share the same bus without interference
• High-speed operation enables efficient data transmission
• Low-power consumption for energy-efficient applications
• Robust design ensures reliable performance in various environments

Advantages and Disadvantages

Advantages: - Versatile IC suitable for various bus transceiver and register applications - High-speed operation allows for efficient data transfer - Low-power consumption for energy-efficient designs - 3-state outputs enable multiple devices to share the same bus

Disadvantages: - Limited maximum data rate of 100MHz - Requires careful consideration of voltage compatibility between buses

Working Principles

The SN74ABT646DWR operates by controlling the direction of data flow between two buses, referred to as Bus A and Bus B. The DIR pin determines the direction of data transfer, while the OE pin enables or disables the outputs. When the DIR pin is set to a specific logic level, data can be transferred bidirectionally between the two buses. The 3-state outputs allow multiple devices to share the same bus without interference.

Detailed Application Field Plans

The SN74ABT646DWR finds applications in various fields, including:

1. Communication Systems: Used for interfacing different voltage level buses in communication systems, such as UART (Universal Asynchronous Receiver-Transmitter) interfaces.
2. Industrial Automation: Enables data exchange between different subsystems in industrial automation equipment, such as PLCs (Programmable Logic Controllers).
3. Automotive Electronics: Facilitates communication between different electronic modules in automotive systems, such as infotainment and control units.
4. Computer Peripherals: Allows data transfer between different peripherals, such as USB (Universal Serial Bus) devices and microcontrollers.
5. Consumer Electronics: Used in devices like smartphones, tablets, and gaming consoles for efficient data transfer between components.

Detailed and Complete Alternative Models

1. SN74ABT646ADW: Similar to SN74ABT646DWR but available