TXB0108PWR

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 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 3.5 V. This allows for universal low- voltage bidirectional translation between any of the 1.2- V, 1.5- V, 1.8- V, 2.5- V, 3.3- V, and 5- V 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.

Applications

• Handset
• Smartphone
• Tablet
• Desktop PC

Key features

• 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V 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, 4- μA Max ICC
• Ioff Supports Partial- Power- Down Mode Operation
• Latch- Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
• A Port
• 2000- V Human- Body Model (A114- B)
• 1000- V Charged- Device Model (C101)
• B Port
• ±15- kV Human- Body Model (A114- B)
• ±8- kV Human- Body Model (A114- B) (YZP Package Only)
• 1000- V Charged- Device Model (C101)