TXU0202DCUR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Dual-channel fixed-direction voltage-level translator with channels configured in opposite directions for mixed-voltage 2-wire interfaces. Supports VCCA from 1.2 V to 3.6 V and VCCB from 1.65 V to 5.5 V in an 8-pin SOT-23 package. From $0.42 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TXU0202DCUR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4680(MOQ 1000)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Two independent channels with opposite translation directions in a single 8-pin SOT-23 IC simplify bidirectional signal bridging without external components
- VCCA supply range of 1.2 V to 3.6 V and VCCB range of 1.65 V to 5.5 V covers 1.2 V/1.8 V/2.5 V/3.3 V/5 V mixed-voltage interfacing in one part
- Active-high enable pin allows system power management to disable both translation channels simultaneously, reducing standby current to near zero
Applications
The TXU0202DCUR is designed for mixed-voltage systems where a 1.8 V microcontroller must communicate over a 3.3 V or 5 V peripheral bus with channels running in opposite directions, such as I2C SDA/SCL or UART TX/RX pairs. Its fixed-direction architecture and push-pull outputs deliver fast edge rates up to 100 Mbps, making it suitable for high-speed SPI and LVTTL signal translation in IoT modules, wearables, and portable consumer electronics. The compact SOT-23 footprint and single-supply-per-port design minimize PCB area and simplify layout.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE HIGH |
| Count Direction | BIDIRECTIONAL |
| Family | TXU |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Load Capacitance (CL) | 5pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | -0.012 A |
| Number of Bits | 2 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.0055mA |
| Prop. Delay@Nom-Sup | 60ns |
| Propagation Delay (tpd) | 10ns |
| Schmitt Trigger | YES |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 0.44V |
| Supply Voltage-Nom (Vsup) | 1.1V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage supply ranges does TXU0202DCUR support on each port for level translation?
The TXU0202DCUR supports VCCA from 1.2 V to 3.6 V and VCCB from 1.65 V to 5.5 V, allowing translation between common logic levels such as 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V. This makes it flexible enough to bridge a low-voltage SoC running at 1.8 V to legacy 5 V peripherals without any additional passive components.
How does the fixed-direction architecture of TXU0202DCUR benefit a UART interface design at 3.3 V to 5 V?
Because the 2 channels of TXU0202DCUR are pre-configured in opposite directions (one A-to-B, one B-to-A), a UART TX line on the 3.3 V MCU side translates to a 5 V receiver input, while the 5 V UART TX translates back to the 3.3 V MCU RX pin. This eliminates direction-control logic and associated propagation delay from enable switching, supporting reliable half-duplex and full-duplex UART operation.
What is the maximum data rate supported by TXU0202DCUR for SPI or other high-speed signals?
The TXU0202DCUR supports data rates up to 100 Mbps with a 5 pF load capacitance, making it compatible with high-speed SPI (typically 10 MHz to 50 MHz), LVTTL, and other fast digital signals. This bandwidth exceeds the requirements of I2C Fast-Mode Plus at 1 MHz and standard SPI at 20 MHz by a wide margin.
When is TXU0202DCUR preferred over a passive resistor voltage divider for 3.3 V to 1.8 V level shifting?
A resistor divider only translates signals in one direction and is limited by RC time constants to frequencies well below 1 MHz for typical 10 kΩ resistors and 50 pF PCB trace capacitance. The TXU0202DCUR provides active buffering at up to 100 Mbps with guaranteed output-drive current of 12 mA, ensuring fast edge rates and correct logic levels regardless of load capacitance, making it the correct choice for any design operating above a few megabits per second.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.5070 | $507.00 |
| 3000+ | $0.4790 | $1437.00 |
| 6000+ | $0.4680 | $2808.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”