TXS0102DCUR - 2-Bit Bidirectional Level Shifter | TI
MPN: TXS0102DCUR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.35 | $0.35 |
| 10 | $0.28 | $2.80 |
| 100 | $0.2 | $20.00 |
| 500 | $0.16 | $80.00 |
| 1,000 | $0.14 | $140.00 |
Drop-in alternatives for TXS0102DCUR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TXS0102DCUT
β Drop-Inπ Reference alternative (not in catalog)
TXS0102DCURG4
β Drop-Inπ Reference alternative (not in catalog)
TXS0102DCTR
β Drop-Inπ Reference alternative (not in catalog)
TXS0102DCU
β Drop-Inπ Reference alternative (not in catalog)
TXS0102QDCURQ1
β Drop-Inπ Reference alternative (not in catalog)
UM3202V
β Drop-Inπ Reference alternative (not in catalog)
TXS0102DCUR Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Input Voltage (VCCA) | 1.65 V to 3.6 V |
| Input Voltage (VCCB) | 2.3 V to 5.5 V |
| Data Rate (Push-Pull) | 24 Mbps |
| Data Rate (Open-Drain) | 2 Mbps |
| Output Type | Bidirectional |
| Interface Type | I2C, SMBus, UART |
| Operating Temperature Range | -40Β°C to +85Β°C |
| Package | VSSOP-8 (DCU) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Number of Circuits | 1 |
| Direction | Bidirectional |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Propagation Delay Time | [DATA_NEEDED: Propagation Delay Time] |
TXS0102DCUR Pin Configuration
| Pin 1 | VCCA β A-port supply voltage, 1.65V to 3.6V |
| Pin 2 | A1 β A-port data input/output 1 |
| Pin 3 | A2 β A-port data input/output 2 |
| Pin 4 | GND β Ground |
| Pin 5 | B2 β B-port data input/output 2 |
| Pin 6 | B1 β B-port data input/output 1 |
| Pin 7 | VCCB β B-port supply voltage, 2.3V to 5.5V |
| Pin 8 | OE β Output enable, active high |
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
TXS0102DCUR is suitable for 6 applications: I2C Bus Level Shifting, UART Communication, Sensor Interfacing, Consumer Electronics, Industrial Control, Automotive Infotainment.
I2C Bus Level Shifting
The TXS0102DCUR is ideal for I2C bus level shifting between different voltage domains, such as 3.3V microcontrollers and 5V sensors. Its open-drain support and 2 Mbps data rate ensure reliable communication. The auto-direction sensing eliminates the need for a direction control pin, simplifying PCB design. With VCCA from 1.65V to 3.6V and VCCB from 2.3V to 5.5V, it covers common I2C voltage combinations. The one-shot architecture accelerates rising edges, improving signal integrity on capacitive buses. Place pull-up resistors on both sides as required by I2C specifications. This device is widely used in consumer electronics and industrial control systems.
Recommended
UART Communication
The TXS0102DCUR enables UART communication between devices operating at different voltage levels, such as 3.3V logic and 5V peripherals. It supports push-pull data rates up to 24 Mbps, well above typical UART speeds. The bidirectional nature allows both TX and RX lines to be shifted without direction control. This simplifies wiring and reduces component count. The device's low quiescent current is suitable for battery-powered applications. Ensure proper decoupling on VCCA and VCCB to maintain signal integrity. Common use cases include GPS modules, Bluetooth modules, and industrial sensors.
Recommended
Sensor Interfacing
The TXS0102DCUR is used to interface sensors operating at different voltage levels with microcontrollers. For example, a 5V analog sensor can be connected to a 3.3V ADC input. The level shifter ensures logic levels are compatible, preventing damage to the MCU. Its small VSSOP-8 package is ideal for space-constrained designs. The device supports both open-drain and push-pull outputs, accommodating various sensor types. With a wide operating temperature range of -40Β°C to 85Β°C, it is suitable for industrial environments. The auto-direction feature simplifies firmware development.
Recommended
Consumer Electronics
In consumer electronics, the TXS0102DCUR is used to bridge voltage differences between application processors and peripherals like displays, touch controllers, and memory cards. For instance, a 1.8V processor can communicate with a 3.3V SD card. The device's low power consumption is critical for battery-operated devices. Its small footprint is ideal for compact PCBs. The 24 Mbps data rate supports high-speed interfaces like SPI. The device is RoHS compliant, meeting environmental standards. It is commonly found in smartphones, tablets, and wearables.
Recommended
Industrial Control
The TXS0102DCUR is used in industrial control systems to interface between PLCs, sensors, and actuators operating at different voltage levels. Its robust design operates from -40Β°C to 85Β°C, suitable for harsh environments. The device supports open-drain outputs for industrial communication protocols like I2C and SMBus. The auto-direction sensing reduces firmware complexity. With a wide supply voltage range, it can be powered from common industrial rails. The small package allows for high-density PCB layouts. It is often used in motor drives, factory automation, and process control.
Recommended
Automotive Infotainment
The TXS0102DCUR is used in automotive infotainment systems to interface between different voltage domains, such as 3.3V application processors and 5V display panels. The automotive-grade variant TXS0102QDCURQ1 is AEC-Q100 qualified for harsh automotive environments. The device supports high-speed data rates for video and audio interfaces. Its small package is suitable for space-constrained head units. The wide temperature range ensures reliable operation in vehicle cabins. The device is also used in ADAS modules for sensor interfacing.
Recommended
Recommended Products Summary
Engineering reference data for TXS0102DCUR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TXS0102DCUT | TXS0102DCURG4 | TXS0102DCTR | TXS0102DCU | TXS0102QDCURQ1 | UM3202V |
|---|---|---|---|---|---|---|---|
| Package | VSSOP-8 (DCU) | VSSOP-8 (DCU) | VSSOP-8 (DCU) | VSSOP-8 (DCU) | VSSOP-8 (DCU) | VSSOP-8 (DCU) | VSSOP-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Union Semiconductor |
| Number of Channels | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| VCCA Range | 1.65V to 3.6V | 1.65V to 3.6V | 1.65V to 3.6V | 1.65V to 3.6V | 1.65V to 3.6V | 1.65V to 3.6V | [DATA_NEEDED] |
| VCCB Range | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | [DATA_NEEDED] |
| Data Rate (Push-Pull) | 24 Mbps | 24 Mbps | 24 Mbps | 24 Mbps | 24 Mbps | 24 Mbps | [DATA_NEEDED] |
| Data Rate (Open-Drain) | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps | [DATA_NEEDED] |
| Operating Temperature | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 125Β°C | [DATA_NEEDED] |
Key Differentiators
- Auto-direction sensing eliminates direction control pin (vs TXB0102DCUR)
- Supports both open-drain and push-pull applications (vs TXB0102DCUR)
- Automotive-grade variant available (vs UM3202V)
Design Notes
Place decoupling capacitors (0.1uF) close to VCCA and VCCB pins to ensure stable supply voltages. Use a ground plane to minimize noise and ensure signal integrity. Keep traces short for high-speed signals.
Ensure VCCA is always less than or equal to VCCB to prevent damage. The OE pin must be pulled high to enable outputs; if left floating, the device may be disabled. For open-drain applications, external pull-up resistors are required on both sides.
For high-speed push-pull signals up to 24 Mbps, minimize capacitive loading on the data lines. The one-shot architecture helps, but excessive capacitance can degrade signal quality. Use series resistors if needed to damp ringing.
Compliance Information
RoHS compliant per JLCPCB listing. Automotive variant TXS0102QDCURQ1 is AEC-Q100 qualified.
