TCA9406DCTR
Active2-BIT BIDIRECTIONAL 1MHZ I2C/SMBUS VOLTAGE LEVEL TRANSLATOR WITH INTERNAL PULL-UP RESISTOR
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TCA9406DCTR
Active2-BIT BIDIRECTIONAL 1MHZ I2C/SMBUS VOLTAGE LEVEL TRANSLATOR WITH INTERNAL PULL-UP RESISTOR
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Technical Specifications
Parameters and characteristics for this part
| Specification | TCA9406DCTR |
|---|---|
| Channel Type | Bidirectional |
| Channels per Circuit | 2 |
| Data Rate | 24 Mbps |
| Features | Auto-Direction Sensing |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Open Drain |
| Supplier Device Package | SM8 |
| Translator Type | Voltage Level |
| Voltage - VCCA [Max] | 3.6 V |
| Voltage - VCCA [Min] | 1.65 V |
| Voltage - VCCB [Max] | 5.5 V |
| Voltage - VCCB [Min] | 2.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.13 | |
| 10 | $ 1.01 | |||
| 25 | $ 0.96 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.74 | |||
| 500 | $ 0.65 | |||
| 1000 | $ 0.51 | |||
| Digi-Reel® | 1 | $ 1.13 | ||
| 10 | $ 1.01 | |||
| 25 | $ 0.96 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.74 | |||
| 500 | $ 0.65 | |||
| 1000 | $ 0.51 | |||
| Tape & Reel (TR) | 3000 | $ 0.48 | ||
| 6000 | $ 0.46 | |||
| 15000 | $ 0.44 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.84 | |
| 100 | $ 0.64 | |||
| 250 | $ 0.47 | |||
| 1000 | $ 0.34 | |||
Description
General part information
TCA9406 Series
The TCA9406 is a 2-bit bidirectional I2C and SMBus voltage-level translator with an output enable (OE) input. It is operational from 1.65 V to 3.6 V on the A-side, referenced toVCCA, and from 2.3 V to 5.5 V 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-V, 2.5-V, 3.3-V, and5-V supply rails.
The OE input pin is referenced to VCCA, can be tied directly to VCCA, but it is also 5.5-V 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 2 Mbps; therefore, it is compatible with standard I2C speeds where the frequency of SCL is 100 kHz (Standard-mode), 400 kHz (Fast-mode), or 1 MHz (Fast-mode Plus). The device can also be used as a general purpose level translator, and when the A- and B-side ports are both driven with push-pull devices the TCA9406 can support up to 24 Mbps.
Documents
Technical documentation and resources