El conmutador analógico 2:1 de 2 canales TMUX121 de Texas Instrument es un conmutador bidireccional de 2 canales y 2:1 (SPDT) de alto rendimiento que admite señales diferenciales y de terminación única. El TMUX121 es un interruptor analógico pasivo con protección contra el desligamiento, forzando todos los pines de E/S a estar en modo de alta impedancia cuando la alimentación no está en el pino VDD. Los pines de selección y habilitación del TMUX121 son compatibles con la tensión de control de 1,8 V y 3,3 V, lo que permite que tengan una interfaz directa con E/S de uso general (GPIO) de procesadores de baja tensión. Este recurso y la baja resistencia y baja capacidad del dispositivo hacen el TMUX121 son una excelente elección para soportar la conmutación de una amplia gama de padrones de protocolo de comunicación de señales digitales y analógicas, incluidos padrones de alta velocidad como I3C. El Texas Instruments TMUX121 tiene un pequeño paquete UQFN de 10 pines con apenas 1,8 mm × 1,4 mm, lo que resulta útil cuando el área de PCB es limitada.

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