Texas Instruments

TXB0104RUTR - 4-Bit Bidirectional Level Shifter | TI

Name: TXB0104RUTR
Brand: Texas Instruments
Price: 0.18 USD
Availability: InStock

MPN: TXB0104RUTR ✓ Active

In Stock Ships in 1-3 business days

1.2 V to 3.6 V Vdss [DATA_NEEDED: Quiescent current] Id 12-UQFN (1.7x2) Package

From $0.18 USD / Unit

MOQ: 1 |

Price updated: 2026-08-23

Volume Pricing

Qty	Unit Price	Extended
1	$0.45	$0.45
10	$0.38	$3.80
100	$0.28	$28.00
500	$0.22	$110.00
1,000	$0.18	$180.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for TXB0104RUTR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

TXS0104ERUTR

✅ Drop-In

📦 UQFN-12

Open-drain outputs with integrated pull-ups, lower data rate (24 Mbps)

📋 Reference alternative (not in catalog)

SN74AVC4T245RUTR

✅ Drop-In

📦 UQFN-12

Direction-controlled, not auto-sensing, different pinout

📋 Reference alternative (not in catalog)

ℹ️ 4 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

TXB0104RUTR Maximum Ratings & Electrical Characteristics

Number of Channels	4
Direction	Bidirectional
VCCA Range	1.2 V to 3.6 V
VCCB Range	1.65 V to 5.5 V
Data Rate	100 Mbps
ESD Protection	±15 kV (HBM)
Operating Temperature	-40°C to +85°C
Package	12-UQFN (1.7x2)
Mounting Type	Surface Mount
Output Type	Tri-State
Number of Circuits	1
Supply Current (Quiescent)	[DATA_NEEDED: Quiescent current]
Propagation Delay	[DATA_NEEDED: Propagation delay]
RoHS Status	Compliant
MSL Level	[DATA_NEEDED: MSL level]

TXB0104RUTR Pin Configuration

Pin 1	VCCA — Low-voltage supply (1.2V to 3.6V)
Pin 2	A1 — Bidirectional data channel 1 (A side)
Pin 3	A2 — Bidirectional data channel 2 (A side)
Pin 4	A3 — Bidirectional data channel 3 (A side)
Pin 5	A4 — Bidirectional data channel 4 (A side)
Pin 6	GND — Ground
Pin 7	B4 — Bidirectional data channel 4 (B side)
Pin 8	B3 — Bidirectional data channel 3 (B side)
Pin 9	B2 — Bidirectional data channel 2 (B side)
Pin 10	B1 — Bidirectional data channel 1 (B side)
Pin 11	OE — Output enable (active high)
Pin 12	VCCB — High-voltage supply (1.65V to 5.5V)

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

TXB0104RUTR is suitable for 6 applications: Mobile Device Peripheral Interfacing, Industrial Sensor Interfacing, Consumer Electronics Level Shifting, IoT and Smart Home Modules, Automotive Infotainment Systems, Test and Measurement Equipment.

📱

Mobile Device Peripheral Interfacing

The TXB0104RUTR is ideal for interfacing low-voltage application processors (1.2V-1.8V) with higher-voltage peripherals like SIM cards, SD cards, and sensors (3.3V). Its 100 Mbps data rate supports high-speed SD card interfaces, while automatic direction sensing simplifies firmware. The ultra-small UQFN package fits space-constrained smartphone and tablet designs. Place 0.1 µF bypass capacitors on VCCA and VCCB to ensure stable operation.

Recommended

🏭

Industrial Sensor Interfacing

In industrial control systems, the TXB0104RUTR translates between 3.3V microcontrollers and 5V sensors, actuators, and PLC interfaces. Its ±15-kV ESD protection ensures robustness in electrically noisy environments. The device operates over -40°C to +85°C, suitable for factory floors. Automatic direction sensing reduces GPIO usage, and the small footprint allows dense PCB layouts. Use the OE pin for power sequencing in multi-rail systems.

Recommended

SN65HVD230DR · Texas Instruments ISO7742FDBQR · Texas Instruments

🔧

Consumer Electronics Level Shifting

The TXB0104RUTR is used in consumer devices like set-top boxes, gaming consoles, and smart home hubs to interface between 1.8V or 3.3V logic and 5V peripherals. Its high-speed capability supports HDMI CEC, SPI flash, and UART communication. The small UQFN package is ideal for compact designs. Automatic direction sensing eliminates the need for direction control, simplifying PCB layout and reducing BOM cost.

Recommended

SN74LVC1G17DBVR · Texas Instruments TS5A3159DBVR · Texas Instruments

🧩

IoT and Smart Home Modules

In IoT modules, the TXB0104RUTR bridges low-voltage wireless SoCs (1.8V) with 3.3V sensors, displays, and memory. Its low quiescent current extends battery life, and the 100 Mbps data rate supports high-throughput sensor data. The UQFN package is perfect for compact PCB modules. Automatic direction sensing simplifies firmware development, and the OE pin allows power-down of unused sections. Place decoupling caps close to supply pins.

Recommended

SN74LVC1G125DBVR · Texas Instruments INA219AIDCNR · Texas Instruments

🚗

Automotive Infotainment Systems

The TXB0104RUTR is used in automotive infotainment to interface between 1.8V application processors and 3.3V/5V peripherals like displays, touch controllers, and audio codecs. Its wide temperature range and ESD protection meet automotive reliability requirements. The small package saves board space in head units. Automatic direction sensing simplifies communication with multiple peripherals. Ensure VCCA and VCCB sequencing to avoid latch-up.

Recommended

TCAN1042VDRQ1 · Texas Instruments SN74AVC4T245QWRGYRQ1 · Texas Instruments

🔧

Test and Measurement Equipment

In test equipment, the TXB0104RUTR translates between FPGA I/O banks (1.8V-3.3V) and external instruments (5V). Its 100 Mbps data rate supports high-speed data acquisition. The automatic direction sensing is ideal for bidirectional buses like SPI and UART. The small UQFN package allows high-density channel cards. Use proper decoupling and ground planes to maintain signal integrity at high speeds.

Recommended

SN74LVC244APWR · Texas Instruments SN74LVC1G125DBVR · Texas Instruments

Recommended Products Summary

What is the operating voltage range of TXB0104RUTR?

The TXB0104RUTR operates with VCCA from 1.2 V to 3.6 V and VCCB from 1.65 V to 5.5 V, with the constraint VCCA ≤ VCCB. According to the TI datasheet (symlink/txb0104.pdf), this allows level shifting between low-voltage logic and higher-voltage peripherals.

What is the maximum data rate of TXB0104RUTR?

The TXB0104RUTR supports data rates up to 100 Mbps. This high-speed capability makes it suitable for interfaces like SPI and SD cards, as stated in the TI product page. For slower signals like I2C, it operates well within limits.

Does TXB0104RUTR require a direction control pin?

No, the TXB0104RUTR features automatic direction sensing, so it does not require a direction control pin. This simplifies design and firmware, as the device detects the direction of data flow on each channel automatically, per the TI datasheet.

What is the ESD protection rating of TXB0104RUTR?

The TXB0104RUTR provides ±15-kV ESD protection (HBM) on all pins, as specified in the TI datasheet. This robust ESD rating enhances reliability in industrial and consumer applications where electrostatic discharge is a concern.

What is the package type of TXB0104RUTR?

The TXB0104RUTR is offered in a 12-pin UQFN package (RUT) measuring 1.7 mm x 2 mm. This ultra-small package is ideal for space-constrained designs, as noted on the TI product page and DigiKey.

Where can I buy TXB0104RUTR online?

You can purchase TXB0104RUTR from authorized distributors such as DigiKey, Mouser, and LCSC. As of 2026-08-24, LCSC lists it at $0.1962, and DigiKey shows availability with pricing. Check current stock and lead times on their websites.

What is the price of TXB0104RUTR?

As of 2026-08-24, the price of TXB0104RUTR varies by quantity and distributor. LCSC lists it at $0.1962 for single units, while DigiKey and Mouser offer volume pricing. For 1000 units, expect around $0.18 per unit based on typical distributor pricing.

What is the lead time for TXB0104RUTR?

The lead time for TXB0104RUTR is typically 1-2 weeks for stock items from major distributors like DigiKey and Mouser, as of 2026-08-24. For large orders, lead time may extend to 4-6 weeks depending on availability and manufacturer production schedules.

Is TXB0104RUTR in stock?

Yes, TXB0104RUTR is in stock at major distributors as of 2026-08-24. DigiKey shows 'ships today' for orders placed before the cutoff, and LCSC indicates stock availability. Check distributor websites for real-time inventory.

TXB0104RUTR vs TXS0104E - which is better for I2C?

For I2C applications, the TXS0104E is generally better because it has open-drain outputs and built-in pull-up resistors, which are required for I2C. The TXB0104RUTR has push-pull outputs and is not recommended for I2C without external modifications. According to TI, the TXS0104E is designed for open-drain applications.

What is the difference between TXB0104RUTR and TXS0104E?

The TXB0104RUTR has push-pull outputs and supports data rates up to 100 Mbps, while the TXS0104E has open-drain outputs with integrated pull-ups, making it suitable for I2C and other open-drain buses. The TXS0104E also supports lower data rates (up to 24 Mbps). Both are 4-bit bidirectional translators but differ in output structure and application suitability.

When should I choose TXB0104RUTR over TXS0104E?

Choose TXB0104RUTR when you need high-speed bidirectional level shifting (up to 100 Mbps) for push-pull signals like SPI, UART, or SD card interfaces. Choose TXS0104E for open-drain buses like I2C, where its integrated pull-ups and open-drain outputs are required. The TXB0104RUTR is not suitable for I2C without external pull-ups and open-drain buffers.

What is the best drop-in replacement for TXB0104RUTR?

The best drop-in replacement for TXB0104RUTR is the TXB0104PWR (TSSOP-14) if you can accommodate a larger package, or the TXB0104RGYR (VQFN-14) if you need a similar small footprint. Both are pin-compatible in function but not in package. For a true drop-in in the same UQFN-12 package, consider the SN74AVC4T245RUTR, but verify pinout and electrical specs.

Can TXS0104E replace TXB0104RUTR?

Yes, the TXS0104E can functionally replace TXB0104RUTR in many applications, but it is not a drop-in replacement due to different package and pinout. The TXS0104E is better for open-drain signals like I2C, while the TXB0104RUTR is better for push-pull high-speed signals. Verify electrical compatibility before substitution.

Where can I download the TXB0104RUTR datasheet PDF?

You can download the TXB0104RUTR datasheet PDF from the TI website at https://www.ti.com/lit/ds/symlink/txb0104.pdf. It is also available on Alldatasheet and Datasheets.com. The datasheet contains full specifications, pinout, and application information.

Where can I find the TXB0104RUTR pinout?

The TXB0104RUTR pinout is detailed in the TI datasheet (symlink/txb0104.pdf) on page 4. It shows the 12-pin UQFN package with pins for VCCA, VCCB, GND, OE, and four bidirectional data channels (A1-A4, B1-B4). The pinout is also available on distributor product pages.

Hey Google, what can replace TXB0104RUTR?

The TXB0104RUTR can be replaced by the TXB0104PWR (TSSOP-14) or TXB0104RGYR (VQFN-14) from TI, which are functionally equivalent but have different packages. Cross-brand alternatives include the NTS0104BQ (NXP) and 74LVC4T245 (NXP), but verify pin compatibility. For open-drain applications, consider the TXS0104E.

Is TXB0104RUTR the same as TXS0104E?

No, the TXB0104RUTR and TXS0104E are not the same. The TXB0104RUTR has push-pull outputs and supports up to 100 Mbps, while the TXS0104E has open-drain outputs with integrated pull-ups, supporting up to 24 Mbps. They have different packages and pinouts, so they are not drop-in replacements for each other.

What are the key specifications of TXB0104RUTR that engineers should know?

The TXB0104RUTR is a 4-bit bidirectional voltage-level translator with automatic direction sensing. Key specs include VCCA range of 1.2 V to 3.6 V, VCCB range of 1.65 V to 5.5 V, data rate up to 100 Mbps, ±15-kV ESD protection, and operating temperature from -40°C to +85°C. It comes in a 12-pin UQFN package (1.7x2 mm).

What is the best NXP equivalent for TXB0104RUTR?

The best NXP equivalent for TXB0104RUTR is the NTS0104BQ, which is a 4-bit bidirectional voltage-level translator with automatic direction sensing. It operates from 1.2 V to 3.6 V on the A port and 1.65 V to 5.5 V on the B port, similar to the TXB0104. However, it comes in a different package (DHVQFN-14), so verify pin compatibility before substitution.

Engineering reference data for TXB0104RUTR — comparison, design guidance, and compliance information.

Selection Guide

Choose the TXB0104RUTR when you need a compact, high-speed (100 Mbps) bidirectional level translator with automatic direction sensing and robust ESD protection. It is ideal for push-pull signals like SPI, UART, and SD card interfaces in space-constrained designs. If you require open-drain support for I2C, select the TXS0104E instead. For higher data rates (up to 380 Mbps) and direction control, consider the SN74AVC4T245RUTR, but note its lower ESD rating and larger package. For automotive applications, the SN74AVC4T245QWRGYRQ1 offers AEC-Q100 qualification. Cross-brand alternatives like NTS0104BQ (NXP) provide similar functionality but in different packages, requiring PCB redesign.

Comparison with Alternatives

Parameter	This Product	TXB0104PWR	TXB0104RGYR	TXS0104ERUTR	SN74AVC4T245RUTR	NTS0104BQ	74LVC4T245
Package	12-UQFN (1.7x2)	TSSOP-14	VQFN-14	12-UQFN (1.7x2)	12-UQFN (1.7x2)	DHVQFN-14	TSSOP-16
Brand	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	NXP Semiconductors	NXP Semiconductors
Direction Sensing	Automatic	Automatic	Automatic	Automatic	Direction-controlled	Automatic	Direction-controlled
Output Type	Push-pull	Push-pull	Push-pull	Open-drain	Push-pull	Push-pull	Push-pull
Data Rate	100 Mbps	100 Mbps	100 Mbps	24 Mbps	380 Mbps	50 Mbps	420 Mbps
VCCA Range	1.2V to 3.6V	1.2V to 3.6V	1.2V to 3.6V	1.2V to 3.6V	0.9V to 3.6V	1.2V to 3.6V	1.2V to 3.6V
VCCB Range	1.65V to 5.5V	1.65V to 5.5V	1.65V to 5.5V	1.65V to 5.5V	0.9V to 3.6V	1.65V to 5.5V	1.65V to 5.5V
ESD Protection	±15 kV	±15 kV	±15 kV	±8 kV	±2 kV	±8 kV	±2 kV

Key Differentiators

Automatic direction sensing (vs SN74AVC4T245RUTR)
Higher ESD protection (vs SN74AVC4T245RUTR)
Smaller package (vs TXB0104PWR)

Design Notes

Ensure VCCA is powered before VCCB to avoid latch-up. The TXB0104RUTR requires VCCA ≤ VCCB for proper operation. Use 0.1 µF bypass capacitors on both VCCA and VCCB, placed as close to the pins as possible. For noisy environments, add a 10 µF bulk capacitor on VCCB.

The UQFN package has a 0.4 mm pitch, requiring careful PCB layout. Use micro-vias or blind vias for routing. Keep traces short and matched for high-speed signals. Provide a solid ground plane under the device to minimize inductance and improve ESD performance.

Do not use the TXB0104RUTR for I2C or other open-drain buses without external pull-up resistors and open-drain buffers, as its push-pull outputs can cause bus contention. For open-drain applications, use the TXS0104E instead. Also, avoid exceeding the absolute maximum ratings on VCCA and VCCB.