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Name: PCA9306DCUTE4
Brand: Texas Instruments
SKU: PCA9306DCUTE4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments PCA9306DCUTE4

Part No.:: PCA9306DCUTE4

Manufacturer:: Texas Instruments

Package:: 8-VFSOP (0.091, 2.30mm Width)

Datasheet:: PCA9306DCUTE4.pdf

Description:: IC TRNSLTR BIDIRECTIONAL 8VSSOP

In Stock:: 3457

Quantity:: Add To Cart

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PCA9306DCUTE4 Specifications

Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Last Time Buy
TranslatorType:
Voltage Level
ChannelType:
Bidirectional
NumberofCircuits:
1
ChannelsperCircuit:
2
Voltage-VCCA:
1.2 V ~ 3.3 V
Voltage-VCCB:
1.8 V ~ 5.5 V
InputSignal:
-
OutputSignal:
-
OutputType:
Open Drain, Push-Pull
DataRate:
-
OperatingTemperature:
-40°C ~ 105°C (TA)
Features:
Auto-Direction Sensing
MountingType:
Surface Mount

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PCA9306DCUTE4 information

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PCA9306DCUTE4 Typical application Circuitry

PCA9306DCUTE4

The PCA9306DCUTE4 is a dual bidirectional I²C-bus and SMBus voltage-level translator. It is designed to enable communication between devices operating at different voltage levels on the same I²C or SMBus. This is particularly useful in systems where interfacing between different voltage domains is required.

Features of PCA9306DCUTE4

1. Voltage Level Translation: The PCA9306DCUTE4 facilitates level translation between low-voltage (as low as 0.9V) and higher-voltage (up to 5.5V) I²C-bus or SMBus devices.

2. Bidirectional Channels: Provides two bidirectional channels for data transfer (SDA and SCL lines).

3. No Direction-Control Signal Needed: The device operates without the need for a direction-control signal, which simplifies the application circuit.

4. Low Standby Current: Ideal for power-sensitive applications due to its low standby current.

Application Scenario: Sensor Data Acquisition System

In a sensor data acquisition system where a microcontroller operating at 3.3V needs to communicate with sensors operating at 1.8V over the I²C bus, the PCA9306DCUTE4 can be used to bridge the voltage gap. Here's a detailed connection guide for this scenario:

Circuit Connection Details

1. Power Supply (VREF1 - Pin 1, GND1 - Pin 2, VREF2 - Pin 6, GND2 - Pin 5):

- Providing Power to Both Domains: Connect VREF1 (Pin 1) to the 1.8V sensor side and VREF2 (Pin 6) to the 3.3V microcontroller side. Ground both GND1 (Pin 2) and GND2 (Pin 5).

2. I²C Bus Connection (SDA1, SCL1 - Pins 3 and 4; SDA2, SCL2 - Pins 7 and 8):

- Connecting I²C Lines: Connect SDA1 and SCL1 (Pins 3 and 4) to the I²C data and clock lines of the 1.8V sensors. Likewise, connect SDA2 and SCL2 (Pins 7 and 8) to the I²C data and clock lines of the 3.3V microcontroller.

Design Considerations

When designing a circuit with the PCA9306DCUTE4, consider the following:

1. Voltage Levels Compatibility: Ensure that the voltage levels on both sides of the system are compatible with the voltage range that the PCA9306DCUTE4 can handle.

2. Pull-up Resistor Sizing: Properly size the pull-up resistors on the SDA and SCL lines for both voltage domains to guarantee reliable communication.

3. PCB Layout Practices: Keep the I²C lines short and away from sources of noise or high-speed signals to minimize communication errors.

4. Power Supply Stability: Provide stable power supplies for both VREF1 and VREF2 to maintain consistent voltage level translation.

By carefully considering these aspects and leveraging the functionalities and pin configurations of the PCA9306DCUTE4, one can effectively enable I²C communication between devices operating at different voltage levels. The PCA9306DCUTE4, with its voltage-level translation capabilities and bidirectional channels, is an excellent choice for multi-voltage I²C communication systems, such as those needed in sensor data acquisition systems.

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6. What is the process for return or replacement of PCA9306DCUTE4?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of PCA9306DCUTE4.

(3)The PartNo is unused and only in the original unpacked packaging.

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