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Texas Instruments TXB0104DG4 — Interface & Transceivers

TXB0104DG4 Voltage Level Translator, 100 Mbps, 14-SOIC

MPNTXB0104DG4
End of Life

Texas Instruments TXB0104DG4, 4-channel bidirectional voltage-level translator, 100 Mbps data rate, auto-direction sensing, dual supply 1.2 V to 5.5 V, tri-state non-inverted outputs, 14-SOIC package, -40°C to 85°C.

$4.9500Ref. price · indicative, final on quote
Texas Instruments TXB0104DG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TXB0104DG4 specifications
ParameterValue
Output typeTri-State, Non-Inverted
Channel typeBidirectional
MountingSurface Mount
Translator typeVoltage Level
Voltage - VCCA1.2 V ~ 3.6 V
Voltage - VCCB1.65 V ~ 5.5 V
Operating temperature-40°C~85°C(TA)
PackageTube
FeaturesAuto-Direction Sensing
Data rate100Mbps
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits1
Channels per circuit4

Product details

100 Mbps bidirectional level shifting — no direction pin needed

Its auto-direction sensing feature eliminates the need for a dedicated direction-control GPIO, which simplifies firmware and frees up a pin on the host controller.

The 14-SOIC package with surface-mount footprint is a standard layout that fits most two-layer boards without requiring fine-pitch assembly.

The single-circuit design with four channels per circuit packs four independent translation paths into one SOIC-14 package, keeping the board area tight.

For reel quantities, the TXB0104DGV4 variant is the tape-and-reel counterpart.

Frequently asked questions

Does TXB0104DG4 support I2C?

The TXB0104DG4 is a general-purpose bidirectional level translator rated for data rates up to 100 Mbps. I2C typically runs at 100 kHz or 400 kHz, well within this part's speed capability. However, I2C uses open-drain signaling with pull-up resistors, and the TXB0104's auto-direction sensing works with open-drain buses. For pure I2C applications, TI also offers dedicated I2C translators like the TCA9406 or PCA9306, which include integrated pull-up current sources and better handle the I2C bus capacitance.

What is the difference between TXB0104 and TXB0108?

The TXB0104 provides four bidirectional channels in a 14-SOIC package, while the TXB0108 offers eight channels in a 20-SOIC or 20-TSSOP package. Both share the same 100 Mbps data rate, auto-direction sensing, and dual-supply range. The choice is purely channel count versus board area — the TXB0104 fits when four lines are enough, saving space and cost over the eight-channel variant.