TMUXL27518

The TMUXL27518 is a bidirectional, 6-channel, 1:2 multiplexer-demultiplexer designed to operate from 1.08V to 1.95V. This device can handle both digital and analog signals, and can transmit signals up to VCC in either direction. The TMUXL27518 has two control pins, each controlling three 1:2 muxes at the same time, and an enable pin that put all outputs in high-impedance mode. The control pins are compatible with 1.2V logic thresholds across supply voltage range of the device eliminating the need of external logic translation.

Powered-off Protection up to 1.95V on the signal path of the TMUXL27518 provides isolation when the supply voltage is removed (VDD = 0V). Without this protection feature, switches can back-power the supply rail through an internal ESD diode and cause potential damage to the system.

The TMUXL27518 allows any SD, SDIO, and multimedia card host controllers to expand out to multiple cards or peripherals because the SDIO interface consists of 6-bits: CMD, CLK, and Data[0:3] signals. This device supports upto 6-bit interfaces such a qSPI eSPI and SPI muxing. The TMUXL27518 has two control pins that give additional flexibility to the user. For example, the ability to mux two different audio-video signals in equipment such as an LCD television, an LCD monitor, or a notebook docking station.