Six-bit, dual-supply high-speed bidirectional voltage-level translator

The TXB0606 is an 6-bit non-inverting

auto-bidirectional translator that uses two separate configurable power-supply

rails. This voltage translator/ line redriver can be used to remedy voltage domain

mismatches in addition to signal boosting in long-cabling transmission

applications.

The TXB0606 leverages a patented design to achieve high data throughput for

memory-intensive interfaces like Quad-SPI between BMC and Flash devices without

signal integrity losses associated with excessive output parasitic capacitance.

The A port is designed to track VCCA. VCCA accepts any supply

voltage from 0.9V to 2V. The B port is designed to track VCCB.

VCCB accepts any supply voltage from 1.65V to 3.6V.

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 TXB0606 device is designed so the OE input circuit is supplied by

VCCA.

This device is fully specified for

partial power-down 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.