TXB0101 - 1-Bit Bidirectional Voltage-Level Shifter With Auto Direction Sensing and +/-15-kV ESD Protect

This 1-bit noninverting translatoruses two separate configurable power-supply rails. The A port is designed to trackV_CCA. V_CCA accepts any supply voltage from 1.2 V to3.6 V. The B port is designed to track V_CCB. V_CCBaccepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltagebidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltagenodes. V_CCA should not exceed V_CCB.

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

This device is fully specified for partial-power-down applications usingI_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 toGND through a pulldown resistor; the minimum value of the resistor is determined by thecurrent-sourcing capability of the driver.

NanoFree™ package technology is a majorbreakthrough in IC packaging concepts, using the die as the package.

• Available in the Texas Instruments NanoFree™ Package
• 1.2 V to 3.6 V on A Port and
  1.65 V 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, 5 µA Maximum 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
    • 2000 V Human Body Model (A114-B)
    • 250 V Machine Model (A115-A)
    • 1500 V Charged-Device Model (C101)
  • B Port
    • 15 kV Human Body Model (A114-B)
    • 250 V Machine Model (A115-A)
    • 1500 V Charged-Device Model (C101)

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