SN74LVT245BDBRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: SSOP (Shrink Small Outline Package)
• Essence: Voltage level shifting and signal transmission between different logic levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Logic Family: LVT (Low-Voltage TTL)
• Number of Channels: 8
• Input Voltage Range: 1.2V to 3.6V
• Output Voltage Range: 1.2V to 3.6V
• Propagation Delay: 3.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVT245BDBRE4 has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Bidirectional voltage level translation between two logic levels
• High-speed operation with low propagation delay
• Supports voltage translation from 1.2V to 3.6V
• Enables interfacing between different logic families
• Provides direction control for data transmission

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low-power consumption for energy-efficient applications - Wide input/output voltage range enables compatibility with various devices - Bidirectional functionality simplifies circuit design

Disadvantages: - Limited number of channels (8) may not be sufficient for complex systems - Requires careful consideration of voltage compatibility to prevent damage

Working Principles

The SN74LVT245BDBRE4 is a bidirectional level shifter/transceiver that facilitates the translation of voltage levels between two logic families. It operates by receiving data inputs from one logic level and translating them to the corresponding voltage level of the other logic level. The direction control pin (DIR) determines the direction of data transmission, allowing for both input and output functionality.

The device utilizes a combination of MOSFETs and CMOS technology to achieve high-speed operation with minimal power consumption. It is designed to provide reliable and efficient voltage level shifting while maintaining signal integrity.

Detailed Application Field Plans

The SN74LVT245BDBRE4 finds applications in various fields where voltage level translation is required. Some potential application areas include:

1. Microcontroller Interfacing: Facilitating communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: Enabling data exchange between sensors and microcontrollers with varying logic levels.
3. Communication Systems: Supporting voltage level translation in communication interfaces such as UART, SPI, and I2C.
4. Industrial Automation: Integrating different control systems with varying logic levels for seamless operation.

Detailed and Complete Alternative Models

1. SN74LVC245APW: Similar functionality with a different package (TSSOP)
2. SN74LVCH245ADGVR: Bi-directional level shifter with 3-state outputs
3. SN74AVC4T245PWR: Quad-bit level shifter with configurable voltage translation

These alternative models offer similar voltage level shifting capabilities but may differ in terms of package type, number of channels, or additional features. It is important to consider the specific requirements of the application when selecting an alternative model.

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