TXB0102 - 2-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect

The TXB0102 device is a 2-bit noninverting translator that uses two separate configurablepower-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 designedto track V_CCB. V_CCB accepts any supply voltage from1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. V_CCA must notexceed 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 whenthe device is powered down. This inhibits current backflow into the device which prevents damage tothe device.

OE must be tied to GND through a pulldown resistor to assure the high-impedance stateduring power up or power down; the minimum value of the resistor is determined by thecurrent-sourcing capability of the driver.

NanoFree™ technology is a major breakthrough in IC packaging concepts, using the die asthe package.

• Available in the Texas Instruments NanoFree™ Packages
• 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, 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)
    • 200-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)
  • B Port
    • 15-kV Human-Body Model (A114-B)
    • 200-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)

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