SN74LV245ATDW

Product Overview

Category

SN74LV245ATDW belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for level shifting and voltage translation applications.

Characteristics

• Low-voltage operation: The SN74LV245ATDW operates at a low voltage range, typically between 1.65V and 5.5V.
• Bidirectional data transfer: It allows bidirectional data flow between two voltage domains.
• High-speed performance: The IC offers fast switching speeds, making it suitable for high-frequency applications.
• ESD protection: It provides built-in electrostatic discharge (ESD) protection, ensuring reliability in harsh environments.

Package

The SN74LV245ATDW comes in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of SN74LV245ATDW lies in its ability to facilitate voltage level shifting, enabling seamless communication between devices operating at different voltage levels.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Family: LV (Low Voltage)
• Number of Channels: 8
• Input/Output Type: Tri-State
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.3 ns (max)
• Output Current: ±12 mA

Detailed Pin Configuration

The SN74LV245ATDW has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Bidirectional data transfer: The SN74LV245ATDW allows data to be transferred bidirectionally between two voltage domains.
• Tri-State outputs: It features tri-state outputs, enabling easy control of data flow.
• ESD protection: The IC provides built-in electrostatic discharge (ESD) protection, safeguarding against damage caused by static electricity.

Advantages and Disadvantages

Advantages

• Low-voltage operation makes it compatible with a wide range of devices.
• Fast switching speeds enable high-frequency applications.
• Built-in ESD protection ensures reliability in harsh environments.

Disadvantages

• Limited number of channels (8) may not be sufficient for certain applications requiring more channels.
• The TSSOP package may pose challenges during soldering or PCB assembly.

Working Principles

The SN74LV245ATDW operates based on the principles of voltage level shifting. It uses a combination of transistors and logic gates to convert signals from one voltage domain to another. By controlling the direction and enabling/disabling the outputs, it allows bidirectional data transfer between devices operating at different voltage levels.

Detailed Application Field Plans

The SN74LV245ATDW finds applications in various fields, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Sensor networks: The IC enables voltage translation between sensors and microcontrollers in sensor networks.
3. Industrial automation: It can be used for level shifting in industrial automation systems, connecting devices with varying voltage requirements.
4. Communication systems: The SN74LV245ATDW aids in voltage translation between different components of communication systems, ensuring seamless data transfer.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar to SN74LV245ATDW, but operates at a wider voltage range (1.2V to 3.6V).
2. SN74HCT245: A higher-voltage alternative, suitable for applications requiring voltage translation between 5V and 3.3V domains.
3. SN74LVCH245A: Offers lower power consumption compared to SN74LV245ATDW,