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TXB0606

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Six-bit, dual-supply high-speed bidirectional voltage-level translator

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Data sheet

TXB0606

ACTIVE
Data sheet Order now

Product details

Bits (#) 6 Data rate (max) (Mbps) 345 Topology Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.9 Vin (max) (V) 2 Vout (min) (V) 1.65 Vout (max) (V) 3.6 Applications I2S, JTAG, SPI, UART Features Edge rate accelerator, Output enable, Vcc isolation Prop delay (ns) 8.5 Technology family TXB Supply current (max) (mA) 37 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 6 Data rate (max) (Mbps) 345 Topology Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.9 Vin (max) (V) 2 Vout (min) (V) 1.65 Vout (max) (V) 3.6 Applications I2S, JTAG, SPI, UART Features Edge rate accelerator, Output enable, Vcc isolation Prop delay (ns) 8.5 Technology family TXB Supply current (max) (mA) 37 Rating Catalog Operating temperature range (°C) -40 to 125
SOT-23-THN (DYY) 16 8.4 mm² 4.2 x 2 TSSOP (PW) 16 32 mm² 5 x 6.4 WQFN (BQB) 16 8.75 mm² 3.5 x 2.5
  • 0.9V to 2V on A port and 1.65V to 3.6V on B port
  • Minimum data rates:
    • >130 Mbps (15pF load, 1.8V to 3.3V)
    • >100 Mbps (100pF load, 1.8V to 3.3V)
  • Supports high-speed interfaces such as QSPI, OSPI, eSPI
  • VCCA <, =, > VCCB is acceptable
  • No direction control signal needed
  • VCC isolation feature: if either VCC input is at GND, all outputs are in the high-impedance state
  • Schmitt-trigger inputs allow for slow or noisy inputs
  • Output enable (OE) input circuit referenced to VCCA
  • I OFF supports partial power-down mode operation
  • Latch-up Performance Exceeds 100mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • A Port:
      • 2000V Human-Body Model (A114-B)
      • 1000V Charged-Device Model (C101)
    • B Port:
      • 2000V Human-Body Model (A114-B)
      • 1000V Charged-Device Model (C101)
  • 0.9V to 2V on A port and 1.65V to 3.6V on B port
  • Minimum data rates:
    • >130 Mbps (15pF load, 1.8V to 3.3V)
    • >100 Mbps (100pF load, 1.8V to 3.3V)
  • Supports high-speed interfaces such as QSPI, OSPI, eSPI
  • VCCA <, =, > VCCB is acceptable
  • No direction control signal needed
  • VCC isolation feature: if either VCC input is at GND, all outputs are in the high-impedance state
  • Schmitt-trigger inputs allow for slow or noisy inputs
  • Output enable (OE) input circuit referenced to VCCA
  • I OFF supports partial power-down mode operation
  • Latch-up Performance Exceeds 100mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • A Port:
      • 2000V Human-Body Model (A114-B)
      • 1000V Charged-Device Model (C101)
    • B Port:
      • 2000V Human-Body Model (A114-B)
      • 1000V Charged-Device Model (C101)

The TXB0606 is an 6-bit non-inverting auto-bidirectional translator that uses two separate configurable power-supply rails. This voltage translator/ line redriver can be used to remedy voltage domain mismatches in addition to signal boosting in long-cabling transmission applications.

The TXB0606 leverages a patented design to achieve high data throughput for memory-intensive interfaces like Quad-SPI between BMC and Flash devices without signal integrity losses associated with excessive output parasitic capacitance.

The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9V to 2V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 3.6V.

When the 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 must be tied to GND through a pulldown resistor. The current sourcing capability of the driver determines the minimum value of the resistor. The TXB0606 device is designed so the OE input circuit is supplied by VCCA.

This device is fully specified for partial power-down applications using I OFF. The I OFF circuitry disables the outputs, which prevents damaging current backflow through the device when the device is powered down.

The TXB0606 is an 6-bit non-inverting auto-bidirectional translator that uses two separate configurable power-supply rails. This voltage translator/ line redriver can be used to remedy voltage domain mismatches in addition to signal boosting in long-cabling transmission applications.

The TXB0606 leverages a patented design to achieve high data throughput for memory-intensive interfaces like Quad-SPI between BMC and Flash devices without signal integrity losses associated with excessive output parasitic capacitance.

The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9V to 2V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 3.6V.

When the 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 must be tied to GND through a pulldown resistor. The current sourcing capability of the driver determines the minimum value of the resistor. The TXB0606 device is designed so the OE input circuit is supplied by VCCA.

This device is fully specified for partial power-down applications using I OFF. The I OFF circuitry disables the outputs, which prevents damaging current backflow through the device when the device is powered down.
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Technical documentation

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* Data sheet TXB0606 Auto-Bidirectional Level Translator for High-Speed Interfaces datasheet PDF | HTML 06 May 2026
Application note From Bottleneck to Breakthrough: QSPI Optimization in Data Centers with TXB0604/TXB0606 PDF | HTML 09 Apr 2026

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Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DYY) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
WQFN (BQB) 16 Ultra Librarian
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