1 Features

• 1.65 V to 3.6 V single-supply operation

• Isolation in power-down mode, VCC = 0

• Low-capacitance switches, 21.5 pF (typical)

• Bandwidth up to 240 MHz for high-speed

rail-to-rail signal handling

• Crosstalk and OFF isolation of –62 dB

• 1.8 V logic compatible control inputs

• 3.6 V tolerant control inputs

• Latch-up performance exceeds 100 mA per JESD

78, Class II

• ESD performance tested per JESD 22

– 2500-V human-body model (A114-B, Class II)

– 1500-V charged-device model (C101)

• ESD performance: NC/NO ports

– ±6-kV contact discharge (IEC 61000-4-2)

• 24-WQFN (4.00 mm × 4.00 mm) and 24-TSSOP

(7.90 mm × 6.60 mm) packages

2 Applications

• SD-SDIO and MMC two-port MUX

• PC VGA video MUX-video systems

• Audio and video signal routing

3 Description

The TS3A27518E is a bidirectional, 6-channel,

1:2 multiplexer-demultiplexer designed to operate

from 1.65 V to 3.6 V. This device can handle both

digital and analog signals, and can transmit signals

up to VCC in either direction. The TS3A27518E 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 1.8 V logic thresholds and are

backward compatible with 2.5 V and 3.3 V logic

thresholds.

The TS3A27518E 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 will support other 6-bit interfaces

such a qSPI. The TS3A27518E 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.