1 Features

? 1.2V to 3.6V on A port and 1.65V to 5.5V on B port

(VCCA ≤ VCCB)

? VCC isolation feature: if either VCC input ss at GND,

all outputs are in the high-impedance state

? Output enable (OE) input circuit referenced to

VCCA

? Low power consumption, 5μA maximum ICC

? I OFF supports partial power-down mode operation

? Latch-up Performance Exceeds 100mA Per JESD

78, Class II

? ESD Protection Exceeds JESD 22

– A Port:

? 2500V Human-Body Model (A114-B)

? 1500V Charged-Device Model (C101)

– B Port:

? ±15kV Human-Body Model (A114-B)

? 1500V Charged-Device Model (C101)

2 Applications

? Headsets

? Smartphones

? Tablets

? Desktop PC

3 Description

This TXB0104 4-bit noninverting translator uses two

separate configurable power-supply rails. The A port

is designed to track VCCA. VCCA accepts any supply

voltage from 1.2V to 3.6V. The B port is designed

to track VCCB. VCCB accepts any supply voltage from

1.65V to 5.5V. This allows for universal low-voltage

bidirectional translation between any of the 1.2V, 1.5V,

1.8V, 2.5V, 3.3V, and 5V voltage nodes. VCCA must

not exceed VCCB.

When the OE input is low, all outputs are placed in the

high-impedance state. To ensure the high-impedance

state during power up or power down, OE must

be tied to GND through a pulldown resistor The

current sourcing capability of the driver determines

the minimum value of the resistor.

The TXB0104 device is designed so the OE input

circuit is supplied by VCCA.

This device is fully specified for partial powerdown

applications using I OFF. The I OFF circuitry

disables the outputs, which prevents damaging

current backflow through the device when the device

is powered down.