TXB0108 8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect | TI.com

TXB0108 (ACTIVE) 8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect

 

Description

This 8-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB 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. VCCA should not exceed VCCB.

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

The TXB0108 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.

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.

Features

  • 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on
    B Port (VCCA ≤ VCCB)
  • 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, 4-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
    • A Port
      • 2000-V Human-Body Model (A114-B)
      • 1000-V Charged-Device Model (C101)
    • B Port
      • ±15-kV Human-Body Model (A114-B)
      • ±8-kV Human-Body Model (A114-B)
        (YZP Package Only)
      • 1000-V Charged-Device Model (C101)

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Parametrics

Compare all products in Auto bidirectional voltage translation Email Download to Excel
Part number Order Technology Family Application Bits (#) High input voltage (Min) (Vih) High input voltage (Max) (Vih) Output voltage (Max) (V) Output voltage (Min) (V) IOH (Max) (mA) IOL (Max) (mA) Package Group Rating
TXB0108 Order now TXB       8     0.78     5.5     5.5     1.2     -0.02     0.02     BGA MICROSTAR JUNIOR | 20
DSBGA | 20
TSSOP | 20
USON | 20
VQFN | 20    
Catalog    
SN74AVC8T245 Order now AVC       8     0.78     3.6     3.6     1.2     -12     12     TSSOP | 24
TVSOP | 24
VQFN | 24    
Catalog    
SN74AVC8T245-Q1 Order now AVC       8     0.78     3.6     3.6     1.2     -12     12     TSSOP | 24
VQFN | 24    
Automotive    
SN74LVC8T245 Order now LVC     RGMII     8     1.08     5.5     5.5     1.65     -32     32     SOIC | 24
SO | 24
SSOP | 24
SSOP | 24
TSSOP | 24
TVSOP | 24
VQFN | 24    
Catalog    
TXS0108E Order now TXS       8     1     5.5     5.5     1.2     0     0     BGA MICROSTAR JUNIOR | 20
TSSOP | 20
VQFN | 20    
Catalog