| RoHS | Compliant |
|---|---|
| Supply Voltage (DC) | 1.65 V to 3.60 V |
| Packaging | Cut Tape (CT), Reel, Tape & Reel (TR) |
| Number of Pins | 8 |
| REACH SVHC Compliance | No SVHC |
| Operating Temperature | -40.0 °C to 85.0 °C |
| Lifecycle Status | Active |
| Number of Outputs | 2 |
| Case/Package | VSSOP |
| Lead-Free Status | Lead Free |
Drivers & Interfaces
| Manufacturer | Texas Instruments |
|---|---|
| Manufacturer Part Number | TCA9406DCUR |
| Description | IC V-LEVEL XLATR I2C/SMBUS US8 |
| Stock Code | W006888 |
| Download |  Technical Datasheet |
The TCA9406DCUR is a 2-bit bidirectional I²C and SMBus Voltage-level Translator with an output enable (OE) input. It is operational from 1.65 to 3.6V on the A-side, referenced to VCCA and from 2.3 to 5.5V on the B-side, referenced to VCCB. This allows the device to interface between lower and higher logic signal levels at any of the typical 1.8, 2.5, 3.3 and 5V supply rails. The OE input pin is referenced to VCCA, can be tied directly to VCCA, but it is also 5.5V tolerant. The OE pin can also be controlled and set to a logic low to place all the SCL and SDA pins in a high-impedance state, which significantly reduces the quiescent current consumption. Under normal I²C and SMBus operation or other open-drain configurations, the TCA9406 can support up to 2Mbps; therefore, it is compatible with standard I²C speeds where the frequency of SCL is 100kHz (Standard-mode), 400kHz (Fast-mode) or 1MHz (Fast-mode Plus).
- 2-bit Bidirectional translator for SDA and SCL lines in I²C applications
- Provides bidirectional voltage translation with no direction pin
- Internal 10kΩ pull-up resistor on All SDA and SCL pins
- No power-supply sequencing required
- OE Input can be tied directly to VCCA or controlled by GPIO
- Latch-up performance exceeds 100mA per JESD 78, class II
- Green product and no Sb/Br
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