1FEATURES

• 6-to-12 Demultiplexer/Multiplexer Allows SDIO

Port Expansion

• Built-in Level Translator Eliminates Voltage

Mismatch Between Baseband and SD Card or

SDIO Peripheral

• VCCA, VCCB0, and VCCB1 Each Operate Over Full

1.1-V to 3.6-V Range

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Performance A Port

– 2000-V Human-Body Model (A114-B)

– 100-V Machine Model (A115-A)

– 1500-V Charged-Device Model (C101)

• ±8-kV Contact Discharge IEC 61000-4-2 ESD

Performance (B Port)

DESCRIPTION/ORDERING INFORMATION

The TXS02612 is designed to interface the cell phone baseband with external SDIO peripherals. The device

includes a 6-channel SPDT switch with voltage-level translation capability. This allows a single SDIO port to be

interfaced with two SDIO peripherals. The TXS02612 has three separate supply rails that operate over the full

range of 1.1 V to 3.6 V. This allows the baseband and SDIO peripherals to operate at different supply voltages if

required.

The select (SEL) input is used to choose between the B0 port and B1 port. When SEL = Low, B0 port is

selected; when SEL = High, B1 port is selected. SEL is referenced to VCCA. For the unselected B port, the clock

output is held low, whereas the data and command I/Os are pulled high to their respective VCCB through a 70-kΩ

resistor (±30% tolerance).