1 Features

• Compatible with high-speed I3C signals

• VDD range: 2.5 V to 4.3 V

• High performance switch characteristics:

– Bandwidth (–3 dB): 6.5 GHz

– RON (typical): 5.5 Ω

– CON (typical): 1.3 pF

• Current consumption: 28 μA (typical)

• Integrated pull down resistor on logic pins

• Special features:

– IOFF protection prevents current leakage in

powered-down state (VDD = 0 V)

– 1.8-V compatible control inputs (SEL)

– Overvoltage tolerance (OVT) on all I/O pins up

to 5.5 V without external components

• ESD performance:

– 2-kV Human-Body Model (A114B, Class II)

– 1-kV Charged-Device Model (C101)

• Package:

– 12-Pin VQFN package (1.8-mm × 1.8-mm,

0.5-mm pitch)

2 Applications

• I3C (SenseWire)

• I3C and I2C peripheral switching

• Servers

• Handset: smart phone

• Notebook PC

• Tablet: multimedia

• Electronic point-of-sale

• Field instrumentation

• Portable monitor

3 Description

The TMUX131 device is a high performance

bidirectional 2-channel, 3:1 multiplexer that supports

both differential and single ended signals. The

TMUX131 is an analog passive multiplexer which

features power-off protection forcing all I/O pins to be

in high-impedance mode when power is not present

on the VDD pin. The select pins of the TMUX131 are

compatible with 1.8 V and 3.3 V control logic, allowing

them to be directly interfaced with the general

purpose I/O (GPIO) from low voltage processors.

This, along with the low on-resistance and low oncapacitance

of the device, make the TMUX131 an

excellent device for supporting switching a wide range

of analog signals and digital communication protocol

standards, including high-speed standards such as

I3C.

The TMUX131 comes in a small 12-pin VQFN

package with only 1.8 mm × 1.8 mm in size, which

makes it useful when PCB area is limited.