Product
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TXB0302
  • TXB0302

TXB0302

ACTIVE

2-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

Texas Instruments TXB0302 Product Info

1 April 2026 2

Parameters

Bits (#)

2

Data rate (max) (Mbps)

140

Topology

Push-Pull

Direction control (typ)

Auto-direction

Vin (min) (V)

0.9

Vin (max) (V)

3.6

Vout (min) (V)

0.9

Vout (max) (V)

3.6

Features

Edge rate accelerator, Integrated pullup resistors, Output enable, Partial power down (Ioff), Vcc isolation

Technology family

TXB

Supply current (max) (mA)

0.01

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

X2SON (DQM)-8-2.16 mm² 1.8 x 1.2

Features

  • Fully Symmetric Supply Voltages.
    0.9 V to 3.6 V on A Port and 0.9 V to 3.6 V
  • 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, 5-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
    • 4000-V Human-Body Model (A114-B)
    • 1000-V Charged-Device Model (C101)

  • Fully Symmetric Supply Voltages.
    0.9 V to 3.6 V on A Port and 0.9 V to 3.6 V
  • 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, 5-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
    • 4000-V Human-Body Model (A114-B)
    • 1000-V Charged-Device Model (C101)

Description

This 2-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage bidirectional translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V voltage nodes. For the TXB0302, when the output-enable (OE) input is low, all outputs are placed in the high-impedance state. 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. The TXB0302 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.

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