SN74LVT244BDW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low Voltage, High-Speed, Octal Bus Transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic Level Shifter
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 200MHz
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Propagation Delay Time: 3.9ns (Max)

Detailed Pin Configuration

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Data Input/Output
3. B1 - Data Input/Output
4. GND - Ground
5. B2 - Data Input/Output
6. A2 - Data Input/Output
7. B3 - Data Input/Output
8. A3 - Data Input/Output
9. VCC - Power Supply
10. B4 - Data Input/Output
11. A4 - Data Input/Output
12. B5 - Data Input/Output
13. A5 - Data Input/Output
14. B6 - Data Input/Output
15. A6 - Data Input/Output
16. B7 - Data Input/Output
17. A7 - Data Input/Output
18. GND - Ground
19. A8 - Data Input/Output
20. B8 - Data Input/Output
21. OE (Output Enable) - Active Low Output Enable
22. Y1 - Data Input/Output
23. Y2 - Data Input/Output
24. GND - Ground
25. Y3 - Data Input/Output
26. Y4 - Data Input/Output
27. Y5 - Data Input/Output
28. Y6 - Data Input/Output
29. VCC - Power Supply
30. Y7 - Data Input/Output
31. Y8 - Data Input/Output

Functional Features

• Bidirectional Data Flow
• Non-Inverting Logic Level Shifting
• 3-State Outputs for Bus Sharing
• High-Speed Operation
• Low Power Consumption
• ESD Protection on Inputs and Outputs

Advantages

• Wide supply voltage range allows compatibility with various systems
• High-speed operation enables efficient data transfer
• 3-state outputs facilitate bus sharing and reduce conflicts
• ESD protection ensures reliability in harsh environments
• Low power consumption contributes to energy efficiency

Disadvantages

• Limited maximum operating frequency compared to some alternative models
• Non-inverting nature may not be suitable for certain applications requiring inverted signals

Working Principles

The SN74LVT244BDW is an octal bus transceiver that facilitates bidirectional data transfer between two buses operating at different voltage levels. It employs non-inverting logic level shifting, allowing seamless communication between systems with varying voltage requirements. The device features 3-state outputs, enabling multiple devices to share a common bus without causing conflicts. It operates at high speeds while consuming low power, making it suitable for various applications.

Detailed Application Field Plans

The SN74LVT244BDW finds applications in a wide range of fields, including:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Data Communication Systems: It facilitates data transfer between devices with varying voltage requirements, such as UART, SPI, and I2C interfaces.
3. Industrial Automation: The device is used in control systems to interface between different voltage domains.
4. Automotive Electronics: It enables communication between various electronic modules within a vehicle, ensuring compatibility between different voltage systems.
5. Consumer Electronics: The IC is utilized in devices like smartphones, tablets, and gaming consoles for level shifting purposes.

Detailed and Complete Alternative Models

1. SN74LVC244A: Similar octal bus transceiver with 3-state outputs, but operates at a lower voltage range (1.65V to 3.6V).
2. SN74LVTH244A: Octal bus transceiver with 3-state outputs and higher maximum operating frequency (250MHz), suitable for high-speed applications.
3. SN74AVC4T245: Quad bus transceiver with 3-state