Texas Instruments

TXB0304RSVR - 4-Bit Bidirectional Level Shifter | Texas Instruments

Name: TXB0304RSVR
Brand: Texas Instruments
Price: 0.55 USD
Availability: InStock

MPN: TXB0304RSVR ✓ Active

In Stock Ships in 1-3 business days

0.9 V to 3.6 V Vdss 16-UQFN (2.6x1.8) Package

From $0.55 USD / Unit

MOQ: 1 |

Price updated: 2026-08-25

Volume Pricing

Qty	Unit Price	Extended
1	$0.85	$0.85
10	$0.76	$7.60
100	$0.68	$68.00
500	$0.61	$305.00
1,000	$0.55	$550.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for TXB0304RSVR — 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:

TXB0304RUTR

✅ Drop-In

📦 16-UQFN (2.6x1.8)

Same die and package, different tape-and-reel packaging suffix

📋 Reference alternative (not in catalog)

TXB0104RUTR

✅ Drop-In

Texas Instruments

📦 16-UQFN (2.6x1.8)

4 · Bidirectional · 100 Mbps · 1.2 V to 3.6 V · 1.65 V to 5.5 V · ±15 kV (HBM) · -40°C to +85°C · 12-UQFN (1.7x2)

✓ In Stock

$0.48 / Unit

View Datasheet →

ℹ️ 3 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.

TXB0304RSVR Maximum Ratings & Electrical Characteristics

Number of Channels	4
Number of Circuits	1
Direction	Bidirectional
Supply Voltage (VCCA)	0.9 V to 3.6 V
Supply Voltage (VCCB)	0.9 V to 3.6 V
Data Rate (Max)	100 Mbps
High Input Voltage (Min)	0.81 V
High Input Voltage (Max)	3.6 V
Output Voltage (Min)	0.9 V
Output Voltage (Max)	3.6 V
Package / Case	16-UQFN (2.6x1.8)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to +85°C
RoHS Status	Compliant
Lead Free Status	Lead Free

TXB0304RSVR Pin Configuration

Pin 1	VCCA — Power supply for A-side (0.9V to 3.6V)
Pin 2	A1 — I/O pin for channel 1 on A-side
Pin 3	A2 — I/O pin for channel 2 on A-side
Pin 4	A3 — I/O pin for channel 3 on A-side
Pin 5	A4 — I/O pin for channel 4 on A-side
Pin 6	GND — Ground
Pin 7	B4 — I/O pin for channel 4 on B-side
Pin 8	B3 — I/O pin for channel 3 on B-side
Pin 9	B2 — I/O pin for channel 2 on B-side
Pin 10	B1 — I/O pin for channel 1 on B-side
Pin 11	VCCB — Power supply for B-side (0.9V to 3.6V)
Pin 12	NC — No connect
Pin 13	NC — No connect
Pin 14	NC — No connect
Pin 15	NC — No connect
Pin 16	NC — No connect

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

TXB0304RSVR is suitable for 6 applications: IoT Sensor Interfacing, Portable Electronics, Industrial Control Systems, Automotive Electronics, Medical Devices, Networking Equipment.

🧩

IoT Sensor Interfacing

The TXB0304RSVR enables communication between low-voltage microcontrollers (e.g., 1.8V) and sensors operating at higher voltages (e.g., 3.3V). Its automatic direction sensing simplifies bidirectional I2C or SPI buses, and its 100 Mbps data rate supports high-speed sensor data streaming. The compact UQFN package fits space-constrained IoT modules, while the isolation feature protects the MCU when the sensor is unpowered.

Recommended

📱

Portable Electronics

In battery-powered devices, the TXB0304RSVR translates between the core logic voltage (e.g., 1.2V) and peripheral voltages (e.g., 3.3V) for displays, memory, or wireless modules. Its low quiescent current extends battery life, and the automatic direction sensing reduces GPIO usage. The small package is ideal for wearables and handheld devices where PCB area is limited.

Recommended

CC2541-Q1 · Texas Instruments BQ24251RGER · Texas Instruments

🏭

Industrial Control Systems

The TXB0304RSVR facilitates level translation between 3.3V logic and 5V industrial sensors or actuators, ensuring reliable communication in noisy environments. Its 100 Mbps data rate supports fast control loops, and the isolation feature prevents backflow when one supply is off. The wide operating temperature range (-40°C to +85°C) suits industrial environments.

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TMS320F28069PZT · Texas Instruments ISO1540D · Texas Instruments

🚗

Automotive Electronics

In automotive systems, the TXB0304RSVR translates between the 3.3V microcontroller domain and 5V or 1.8V peripherals such as sensors, ADCs, or communication interfaces. Its automatic direction sensing simplifies CAN or LIN transceiver interfacing, and the device's robustness ensures reliable operation over the automotive temperature range. The compact package is suitable for ECU designs.

Recommended

TCAN337G · Texas Instruments TMP411-Q1 · Texas Instruments

💊

Medical Devices

The TXB0304RSVR is used in medical monitoring equipment to interface low-voltage digital signal processors with higher-voltage analog front-ends or displays. Its low noise and high data rate ensure accurate signal transmission, while the isolation feature enhances patient safety by preventing unintended current flow. The small package is ideal for portable medical devices.

Recommended

ADS131E08SPAGR · Texas Instruments MSP430FR5989IPMR · Texas Instruments

🌐

Networking Equipment

In networking devices, the TXB0304RSVR translates between different voltage domains in routers, switches, and gateways, enabling communication between PHY chips, processors, and memory. Its 100 Mbps data rate supports Ethernet management interfaces, and the automatic direction sensing simplifies design. The device's small footprint is beneficial for high-density PCB layouts.

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DP83848KSQ/NOPB · Texas Instruments TMS320F28377SZWTT · Texas Instruments

Recommended Products Summary

What is the operating voltage range of TXB0304RSVR?

The TXB0304RSVR operates with two separate power-supply rails, VCCA and VCCB, each ranging from 0.9V to 3.6V. This fully symmetric range allows translation between any two voltage levels within this span, such as 1.8V to 3.3V. According to the TI datasheet, the device supports a data rate of up to 100 Mbps.

What is the maximum data rate of TXB0304RSVR?

The TXB0304RSVR supports a maximum data rate of 100 Mbps. This makes it suitable for high-speed interfaces like SPI and UART. The device uses a one-shot circuit to accelerate rising edges, ensuring reliable signal integrity even with capacitive loads.

Does TXB0304RSVR require a direction control pin?

No, the TXB0304RSVR features automatic direction sensing, which detects the direction of data flow without requiring an external direction-control signal. This simplifies design and reduces pin count, making it ideal for bidirectional buses like I2C and SMBus.

What is the package type of TXB0304RSVR?

The TXB0304RSVR is housed in a 16-pin UQFN (RSV) package measuring 2.6mm x 1.8mm. This compact package is suitable for space-constrained PCB designs and is surface-mountable, facilitating automated assembly.

Is TXB0304RSVR RoHS compliant?

Yes, the TXB0304RSVR is RoHS compliant and lead-free. According to DigiKey and Mouser listings, the device meets environmental standards, making it suitable for use in products sold in regions with strict RoHS regulations.

What is the price of TXB0304RSVR?

As of 2026-08-26, the price of TXB0304RSVR is approximately $0.85 for a single unit, with volume pricing dropping to around $0.55 at 1000 units. Prices may vary by distributor and quantity, so check current stock and pricing on DigiKey or Mouser.

Where can I buy TXB0304RSVR?

TXB0304RSVR is available from major distributors such as DigiKey, Mouser, and Octopart. You can purchase it directly from these online stores, which offer worldwide shipping. Check their websites for current inventory and lead times.

What is the lead time for TXB0304RSVR?

The lead time for TXB0304RSVR is typically 1-2 weeks from major distributors like DigiKey and Mouser, depending on stock availability. For large orders, it may be longer; contact the distributor for accurate lead time information.

Is TXB0304RSVR in stock?

As of 2026-08-26, TXB0304RSVR is in stock at DigiKey and Mouser, with immediate shipping available. However, stock levels can change rapidly, so it is advisable to check the distributor's website for real-time availability.

What is the difference between TXB0304RSVR and TXB0304RUTR?

The TXB0304RSVR and TXB0304RUTR are functionally identical, both being 4-bit bidirectional level translators with automatic direction sensing. The main difference is the package: TXB0304RSVR uses a 16-UQFN (2.6x1.8) package, while TXB0304RUTR uses a 16-UQFN (2.6x1.8) package as well, but they may have different tape-and-reel packaging. According to Xecor comparison, both have the same specifications, including 140 Mbps data rate and 0.9V to 3.6V supply range.

Can TXB0304RSVR be used for I2C level shifting?

Yes, the TXB0304RSVR is well-suited for I2C level shifting due to its automatic direction sensing and open-drain compatible outputs. It supports bidirectional data flow without a direction pin, making it ideal for I2C buses operating at different voltage levels, such as 1.8V and 3.3V.

What is the best drop-in replacement for TXB0304RSVR?

The best drop-in replacement for TXB0304RSVR is the TXB0304RUTR, which is pin-compatible and has identical electrical specifications. Both are from Texas Instruments and share the same UQFN package. For cross-brand options, the NXP NVT2004DP is a functional equivalent, but verify pin compatibility before use.

Where can I download the TXB0304RSVR datasheet PDF?

You can download the TXB0304RSVR datasheet PDF from the Texas Instruments website at https://www.ti.com/lit/gpn/txb0304. It is also available on third-party sites like Alldatasheet and DigChip. The datasheet provides detailed specifications, pinout, and application information.

What are the key specifications of TXB0304RSVR that engineers should know?

The TXB0304RSVR is a 4-bit bidirectional level translator with automatic direction sensing, operating from 0.9V to 3.6V on both VCCA and VCCB. It supports data rates up to 100 Mbps and is packaged in a 16-UQFN (2.6x1.8). It features an isolation function that places outputs in high-impedance when either supply is at GND. The device is RoHS compliant and operates over -40°C to +85°C.

Is TXB0304RSVR the same as TXB0104?

No, TXB0304RSVR and TXB0104 are different devices. TXB0304RSVR is a 4-bit bidirectional level translator with automatic direction sensing, while TXB0104 is also a 4-bit bidirectional level translator but with different electrical characteristics, such as higher data rate and different supply voltage range. They are not pin-compatible, so they cannot be used as drop-in replacements for each other.

Engineering reference data for TXB0304RSVR — comparison, design guidance, and compliance information.

Selection Guide

Choose TXB0304RSVR when you need a 4-bit bidirectional level translator with automatic direction sensing and support for sub-1V logic (down to 0.9V). It is ideal for I2C, SPI, and UART interfaces in low-power, space-constrained designs. If you require a higher data rate (up to 320 Mbps) and can manage a direction-control pin, consider SN74AVC4T245PWR, but note its different package (TSSOP) and higher minimum supply voltage (1.2V). For a drop-in replacement with identical specs, use TXB0304RUTR. For applications needing a wider supply range (1.2V to 3.6V) and similar auto-direction sensing, TXB0104RUTR is a viable alternative, but verify pin compatibility. Always confirm package and pinout before substitution.

Comparison with Alternatives

Parameter	This Product	TXB0304RUTR	TXB0104RUTR	SN74AVC4T245PWR
Package	16-UQFN (2.6x1.8)	16-UQFN (2.6x1.8) - same	16-UQFN (2.6x1.8) - same	16-TSSOP - different
Brand	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Channels	4	4	4	4
Direction	Bidirectional	Bidirectional	Bidirectional	Bidirectional
Supply Voltage Range	0.9V to 3.6V	0.9V to 3.6V	1.2V to 3.6V	1.2V to 3.6V
Data Rate (Max)	100 Mbps	100 Mbps	100 Mbps	320 Mbps
Direction Control	Automatic	Automatic	Automatic	Required
Isolation Feature	Yes	Yes	Yes	No

Key Differentiators

Fully symmetric supply range down to 0.9V (vs TXB0104RUTR)
Automatic direction sensing (vs SN74AVC4T245PWR)
Isolation feature (vs SN74AVC4T245PWR)

Design Notes

Ensure both VCCA and VCCB are powered within their specified range (0.9V to 3.6V). The voltage difference between VCCA and VCCB should not exceed the absolute maximum rating. Place 0.1uF decoupling capacitors close to each power pin to minimize noise and ensure stable operation.

Keep traces between the translator and connected devices as short as possible to minimize parasitic capacitance and inductance, which can degrade signal integrity at high data rates. Use ground planes to provide a low-impedance return path and reduce EMI.

Do not leave unused I/O pins floating; tie them to a defined logic level through pull-up or pull-down resistors. Also, ensure that the isolation feature is not inadvertently triggered by powering down one side while the other is active, as this will place outputs in high-impedance and may cause bus contention.