SN74LVTH245ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, and low-power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Bi-directional voltage level translator
• 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 Compatibility: TTL, CMOS
• Number of Channels: 8
• Maximum Data Rate: 400Mbps
• Propagation Delay: 2.5ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH245ADWR has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Bi-directional voltage level translation between different logic families
• Allows interfacing between systems operating at different voltage levels
• Provides bidirectional data flow with direction control
• Supports high-speed data transmission up to 400Mbps
• Low power consumption and wide operating temperature range

Advantages

• Wide supply voltage range allows compatibility with various systems
• High-speed operation enables efficient data transfer
• Low-voltage operation reduces power consumption
• Bi-directional functionality simplifies system design
• Compact SOIC package offers space-saving integration

Disadvantages

• Limited number of channels (8) may not be suitable for applications requiring more channels
• Propagation delay of 2.5ns may introduce timing issues in certain high-speed applications

Working Principles

The SN74LVTH245ADWR is a voltage level translator that facilitates communication between systems operating at different voltage levels. It uses a combination of CMOS and TTL logic to achieve bidirectional data flow. The direction of data transmission is controlled by the DIR pin. When DIR is set to logic high, data flows from A to B, and when DIR is set to logic low, data flows from B to A.

The IC operates within a specified supply voltage range and translates logic voltage levels between 1.65V and 3.6V. It provides reliable and efficient data transfer while consuming minimal power.

Detailed Application Field Plans

The SN74LVTH245ADWR is widely used in various applications where voltage level translation is required. Some common application fields include:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels, allowing seamless integration of multiple devices.
2. Communication Systems: It facilitates data transfer between different communication protocols, such as UART, SPI, and I2C, which may operate at different voltage levels.
3. Industrial Automation: It is used in industrial control systems to interface between sensors, actuators, and control units operating at different voltage levels.
4. Automotive Electronics: It enables communication between various automotive components, such as ECUs (Electronic Control Units), sensors, and displays, which may have different voltage requirements.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar functionality with lower power consumption and wider supply voltage range (1.65V to 5.5V).
2. SN74HCT245: Compatible with higher voltage levels (up to 5.5V) but operates at slower speeds compared to the LVTH series.
3. SN74LVXC3245: Offers 32 channels for applications requiring a higher number of data lines.

These alternative models provide similar voltage level translation capabilities but may have different specifications and package options to suit specific application requirements.

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