Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | 2-bit bidirectional I²C/SMBus level translator |
| Direction pin | Not required |
| VREF1 range | 1.2 V to 3.3 V |
| VREF2 range | 1.8 V to 5.5 V |
| Bus frequency | Up to 400 kHz |
| Typical switch RON | 3.5 Ω class |
| Propagation delay | <1.5 ns maximum class |
| Enable | High-impedance isolation when LOW |
| Package | VSSOP-8 / DCU |
| Product status | Active |
Product Overview
PCA9306DCUR is the VSSOP-8 tape-and-reel orderable of TI’s dual bidirectional I²C/SMBus voltage translator. Its pass-switch architecture translates open-drain SDA and SCL signals without a direction pin and supports common combinations from 1.2 V to 5 V logic domains.
When EN is LOW, both channels become high impedance, allowing the device to isolate bus sections as well as translate voltage.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Channels | 2 |
| Protocol | I²C / SMBus |
| Max bus rate | 400 kHz |
| VREF1 | 1.2 V to 3.3 V |
| VREF2 | 1.8 V to 5.5 V |
| Supply restriction | VREF1 ≤ VREF2 |
| RON | 3.5 Ω class |
| Package | VSSOP-8 |
| Temperature | −40°C to +85°C |
Pull-Up Network Considerations
PCA9306 translates open-drain buses and therefore relies on pull-up resistors on both sides. Pull-up values should be selected for bus capacitance and timing rather than treating the translator as a push-pull logic buffer.
Manufacturer Resource
Texas Instruments PCA9306 product page
Quality & Verification Support
Exact DCUR VSSOP package, reel quantity, marking and lot/date information can be reviewed before shipment.
Request a Quote
Request PCA9306DCUR exactly and include quantity, date-code and traceability requirements.
