TXB0106 - 6-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and +/-15-kV ESD Protect

This 6-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage from 1.65 V to 5.5 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. V_CCA should not exceed V_CCB.

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

The TXB0106 is designed so that the OE input circuit is supplied by V_CCA.

This device is fully specified for partial-power-down applications using I_off. The I_off 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.

• 1.2 V to 3.6 V on A Port and 1.65 to 5.5 V on
  B Port (V_CCA≤ V_CCB)
• V_CC Isolation Feature – If Either V_CC Input Is at
  GND, All Outputs Are in the High-Impedance
  State
• OE Input Circuit Referenced to V_CCA
• Low-Power Consumption, 4 µA Max I_CC
• I_off Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 100 mA Per
  JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • A Port
    • 2500 V Human Body Model (A114-B)
    • 150 V Machine Model (A115-A)
    • 1500 V Charged-Device Model (C101)
  • B Port
    • ±15 kV Human Body Model (A114-B)
    • 150 V Machine Model (A115-A)
    • 1500 V Charged-Device Model (C101)