TXS0102 - 2-Bit Bidirectional Voltage-Level Shifter for Open-Drain and Push-Pull Application

This two-bit non-inverting translator is a bidirectional voltage-level translator and canbe used to establish digital switching compatibility between mixed-voltage systems. It uses twoseparate configurable power-supply rails, with the A ports supporting operating voltages from 1.65V to 3.6 V while it tracks the V_CCA supply, and the B ports supportingoperating voltages from 2.3 V to 5.5 V while it tracks the V_CCB supply. Thisallows the support of both lower and higher logic signal levels while providing bidirectionaltranslation capabilities between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

When the output-enable (OE) input is low, all I/Os are placed in the high-impedancestate, which significantly reduces the power-supply quiescent current consumption.

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.

• No Direction-Control Signal Needed
• Maximum Data Rates
  • 24 Mbps (Push Pull)
  • 2 Mbps (Open Drain)
• Available in the Texas Instruments NanoStar™ Package
• 1.65 V to 3.6 V on A Port and 2.3 V to 5.5 V on B Port (V_CCA  ≤ V_CCB)
• V_CC Isolation Feature: If Either V_CC Input Is at GND, Both Ports Are in the High-Impedance State
• No Power-Supply Sequencing Required: Either V_CCA or V_CCB Can Be Ramped First
• 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)
    • 250-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)
  • B Port:
    • 8-kV Human-Body Model (A114-B)
    • 250-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)

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