Texas Instruments SN74LVC2G241DCUR Transceptor de bus doble, SOT-23-8 ?C Lógica de bajo voltaje

SN74LVC2G241DCUR Low-Voltage Dual Bus Transceiver Overview

The SN74LVC2G241DCUR from Texas Instruments is a compact, high-performance dual-channel (2-channel) bus transceiver designed for bidirectional data transfer in low-voltage electronic systems. Its tri-state outputs enable safe isolation of buses, preventing signal conflicts when two devices share communication paths. This makes it ideal for IoT sensors, consumer electronics, and industrial interfaces where reliable dual-path, bidirectional communication is critical. Fabricante de CI ofrece este componente lógico esencial como parte de su cartera de semiconductores de bajo consumo, de confianza por su rendimiento en diseños con limitaciones de espacio.

Technical Parameters of SN74LVC2G241DCUR

Características de funcionamiento

Ventajas sobre los transceptores de bus alternativos

The SN74LVC2G241DCUR outperforms conventional solutions in dual-channel bidirectional systems, starting with its integrated design. Unlike using two single-channel transceivers, it reduces component count by 50%, slashing PCB space and assembly costs??critical for devices like IoT sensor hubs with paired temperature and humidity sensors. This integration also ensures matched propagation delays across both channels, avoiding timing mismatches in coordinated systems. “We cut our sensor hub component count by 10% using this dual transceiver instead of two discrete devices,” notes a senior engineer at a leading IoT module manufacturer.

Compared to unidirectional buffers, its bidirectional functionality with a single direction control pin (DIR) simplifies design in systems requiring two-way communication (e.g., microcontrollers exchanging data with sensors and actuators). This eliminates the need for separate transmit and receive paths, reducing PCB complexity by 30% in typical compact designs.

Su rango de tensión de 1,65 V a C3,6 V soporta mejor los estándares modernos de bajo consumo (microcontroladores de 1,8 V, sensores de 3,3 V) que las familias lógicas más antiguas (por ejemplo, 74HC), que requieren tensiones más altas. Esta versatilidad permite a los fabricantes estandarizar un componente en todas las líneas de productos, lo que simplifica el inventario. Con una corriente de reposo de 1,5 A, también equilibra la eficiencia energética con la funcionalidad de doble canal, superando a las soluciones discretas en 40% en consumo de energía en espera.

El encapsulado SOT-23-8 (3,0 mm??3,0 mm) se adapta a dispositivos con limitaciones de espacio en los que encapsulados más grandes (por ejemplo, SOIC-14) no funcionan, como auriculares inalámbricos o wearables médicos. Su diseño de montaje en superficie permite el ensamblaje automatizado, lo que mejora la uniformidad de la fabricación, fundamental para la producción de grandes volúmenes.

Typical Applications of SN74LVC2G241DCUR

The SN74LVC2G241DCUR excels in dual-channel, bidirectional systems requiring reliable data transfer. Key use cases include:

• IoT sensor nodes (managing bidirectional data between 2 sensors and a microcontroller)
• Wearable electronics (smartwatch communication between biometric sensors and processing units)
• Consumer electronics (smartphone peripheral interfaces with dual data paths, e.g., charging and audio)
• Industrial automation (small-scale sensor arrays with 2 independent bidirectional links)
• Medical devices (portable monitors with 2 sensor inputs requiring two-way data flow)

Texas Instruments Experiencia en diseño lógico

As a Texas Instruments product, the SN74LVC2G241DCUR leverages TI??s decades of innovation in low-voltage logic. TI??s LVC series is renowned for balancing bidirectional communication, speed, and reliability??critical for modern electronics. Each unit undergoes rigorous testing to withstand -40??C to +85??C temperatures and voltage fluctuations, ensuring performance in harsh environments. This commitment has made TI a trusted partner for brands like Bosch and Apple, who rely on components like the SN74LVC2G241DCUR for consistent performance in high-volume production.

Preguntas más frecuentes (FAQ)

What is a dual bus transceiver, and how does it differ from a buffer?

A dual bus transceiver includes 2 independent bidirectional circuits in one package, enabling data transfer in both directions (A to B or B to A) via a direction control pin. This differs from unidirectional buffers, which only amplify signals in one direction. In IoT systems, this bidirectionality simplifies communication between microcontrollers and paired sensors, reducing the need for separate transmit and receive paths.

¿Por qué es importante una corriente de salida de 32 mA por canal para la integridad de la señal?

32mA output current allows each channel to drive signals over long PCB traces (up to 20cm) or multiple loads without degradation??critical in systems where components are spread across a board, such as industrial sensor arrays or consumer electronics. This prevents voltage drops that could corrupt data, unlike lower-current transceivers that may suffer from signal loss in extended layouts.

¿Qué ventajas aporta el encapsulado SOT-23-8 al diseño de dispositivos compactos?

The SOT-23-8 package??s small footprint (3.0mm??3.0mm) fits in ultra-slim devices like wireless earbuds or glucose monitors, where space is limited by other components (e.g., batteries, displays). Its low profile (1.1mm) supports slim enclosures, while surface-mount technology enables automated assembly??key for high-volume production of consumer and medical devices where miniaturization is critical.

¿Qué hace que el rango de tensión 1,65V?C3,6V sea adecuado para sistemas de tensión mixta?

This range covers the most common low-voltage standards in modern electronics: 1.8V (microcontrollers), 2.5V (DSPs), and 3.3V (sensors). Unlike fixed-voltage transceivers, it works across these standards, eliminating the need for multiple components in mixed-voltage designs??such as a 3.3V microcontroller communicating with a 2.5V sensor. This simplifies engineering and reduces costs for manufacturers.

¿Por qué es importante una baja corriente de reposo (1??A) en los dispositivos alimentados por batería?

At 1??A max, the SN74LVC2G241DCUR uses minimal power when idle, directly extending battery life in portables. For example, a wireless sensor node using this transceiver might operate for 20 months on a coin cell, vs. 15 months with two single-channel transceivers drawing 1??A each. This is especially valuable in remote devices (e.g., agricultural sensors) where frequent battery replacement is impractical.