SN74LVC245ADBR

Product Overview

Category

SN74LVC245ADBR belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional voltage-level translator and signal buffer.

Characteristics

• Bidirectional voltage-level translation between different logic levels
• High-speed operation
• Low power consumption
• Wide operating voltage range
• ESD protection for robustness

Package

SN74LVC245ADBR is available in a small-outline integrated circuit (SOIC) package.

Essence

The essence of SN74LVC245ADBR lies in its ability to facilitate seamless communication between devices operating at different voltage levels.

Packaging/Quantity

SN74LVC245ADBR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Logic Voltage Levels: 1.8V, 2.5V, 3.3V, and 5V
• Input/Output Compatibility: TTL, CMOS
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.3ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

SN74LVC245ADBR has a total of 20 pins, which are arranged as follows:

+-------------------+ OE |1 20| VCC A1 |2 19| B1 A2 |3 18| B2 A3 |4 17| B3 A4 |5 SN74LVC245A 16| B4 A5 |6 15| B5 A6 |7 14| B6 A7 |8 13| B7 GND |9 12| B8 DIR |10 11| OE# +-------------------+

Functional Features

• Bidirectional voltage-level translation: Allows seamless communication between devices operating at different voltage levels.
• Direction control (DIR) input: Determines the direction of data flow.
• Output enable (OE) input: Enables or disables the outputs.
• ESD protection: Provides robustness against electrostatic discharge.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer.
• Low power consumption helps conserve energy.
• Wide operating voltage range provides flexibility in various applications.
• ESD protection ensures reliability and durability.

Disadvantages

• Limited number of bidirectional channels (8 channels in SN74LVC245ADBR).
• May not be suitable for applications requiring a higher number of bidirectional channels.

Working Principles

SN74LVC245ADBR operates by receiving input signals from one logic level and translating them to another logic level. The direction control (DIR) input determines the direction of data flow, while the output enable (OE) input enables or disables the outputs. The integrated circuit uses internal circuitry to perform the voltage-level translation, allowing for seamless communication between devices with different voltage requirements.

Detailed Application Field Plans

SN74LVC245ADBR finds applications in various fields, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It enables connectivity between sensors and microcontrollers with varying voltage requirements.
3. Industrial automation: It can be used in industrial control systems to interface between different components operating at different voltage levels.
4. Communication systems: It aids in voltage-level translation between different communication modules, such as UART, SPI, or I2C.

Detailed and Complete Alternative Models

1. SN74LVC245APWR: Similar to SN74LVC245ADBR but packaged in a smaller TSSOP package.
2. SN74LVC245ARGYR: RoHS-compliant version of SN74LVC245ADBR with enhanced reliability.
3. SN74LVC245ANSR: Surface-mount version of SN74LVC245ADBR with extended temperature range.

These alternative models offer similar functionality and characteristics, providing options for different packaging preferences or specific application requirements.

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