Product Descriptions

This 8-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 should not exceed VCCB.

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state.

The TXB0108 is designed so that the OE input circuit is supplied by VCCA.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

To ensure the high-impedance state during power-up or power-down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

Product 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 Is at GND, All Outputs Are in the High-Impedance State

• OE Input Circuit Referenced to VCCA

• Low Power Consumption, 4μA Max ICC

• Ioff Supports Partial-Power-Down Mode Operation

• Latch-Up Performance Exceeds 100mA Per JESD 78, Class II

• ESD Protection Exceeds JESD 22

– A Port

• 2000V Human-Body Model (A114-B)

• 1000V Charged-Device Model (C101)

– B Port

• ±15kV Human-Body Model (A114-B)

• ±8kV Human-Body Model (A114-B) (YZP Package Only)

• 1000V Charged-Device Model (C101)

Product Applications

• Handset

• Smartphone

• Tablet

• Desktop PC

Specifications

Actual product photos

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