SN74LVTH245ADWRE4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: Low Voltage, High-Speed, 8-bit Bidirectional Transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between two different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Logic Voltage Levels: 1.65V to 3.6V
• Input/Output Voltage Range: 0V to VCC
• Maximum Data Rate: 400Mbps
• Number of Channels: 8
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH245ADWRE4 has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Bidirectional data transfer between two voltage domains
• Supports voltage level shifting from 1.65V to 3.6V
• High-speed operation with a maximum data rate of 400Mbps
• Output enable control for disabling the outputs
• 3-state outputs for easy bus sharing

Advantages and Disadvantages

Advantages: - Low voltage operation allows compatibility with various systems - High-speed data transfer enables efficient communication - Bidirectional functionality simplifies design and reduces component count - Output enable control provides flexibility in managing the outputs

Disadvantages: - Limited to 8-bit data transfer - Requires careful consideration of voltage levels to avoid signal degradation

Working Principles

The SN74LVTH245ADWRE4 is a bidirectional level shifter/transceiver that facilitates data transfer between two voltage domains. It operates by converting input signals from one voltage level to another, allowing seamless communication between devices operating at different voltage levels.

The device utilizes a combination of CMOS and TTL technologies to achieve low voltage operation and high-speed performance. The output enable control allows the user to disable the outputs when not needed, reducing power consumption and preventing conflicts on shared buses.

Detailed Application Field Plans

The SN74LVTH245ADWRE4 finds applications in various fields where data transfer between different voltage domains is required. Some of the common application areas include:

1. Microcontroller interfacing: The transceiver can be used to interface microcontrollers operating at different voltage levels, enabling communication between them.
2. Communication systems: It can be employed in communication systems to facilitate data exchange between devices operating at different voltage levels, such as UART, SPI, or I2C interfaces.
3. Industrial automation: The level shifter/transceiver can be utilized in industrial automation systems to connect sensors and actuators operating at different voltage levels.
4. Consumer electronics: It finds applications in consumer electronic devices where different components operate at varying voltage levels, such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. SN74LVC245ADW: Similar 8-bit bidirectional transceiver with a lower supply voltage range of 1.65V to 3.6V.
2. SN74LVTH16245ADGGR: 16-bit bidirectional transceiver with similar characteristics but a wider data bus width.
3. SN74AVC4T245PW: 4-bit bidirectional level shifter/transceiver with a smaller package size for space-constrained applications.

These alternative models provide options with varying specifications and features to suit different design requirements.

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