PCA9306D,112

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PCA9306D,112 is a dual bidirectional I2C and SMBus voltage-level translator, specifically designed for interoperability between 1.8V and 3.3V devices in mixed 1.8V- and 3.3V-powered systems. The device works with input states from 1.2V to 3.6V–making the translator ideal for mixed voltage systems such as those containing both 5V and 3.3V components. This allows for the connection of low voltage I2C, SMBus and other two-wire serial devices with other devices in higher voltage systems, allowing communication over both 3V and 5V power sources.

The PCA9306D,112 includes a low-voltage regulator and an on-chip, bidirectional voltage level translator. Using a single 3V or 5V supply voltage, the voltage-level translator is capable of translating from logic high to logic low and vice versa. There are also hands-free SCL and SDA inputs, eliminating the need for manual switchover of biasing. The PCA9306D,112 operates from a single 3V to 5V supply and is designed for use in applications requiring translation of I2C, SMBus and other two-wire serial bus signals.

PCA9306D,112 has a wide input voltage range of 2.5V to 5.5V, an operating temperature range of -40°C to +125°C and a low supply current in power-down state making it ideal for interfacing with other hot-swap/hot-plug compatible ICs. As a voltage-level translator, it supports a wide range of applications, including digital audio, USB, infrared (IR), bus-level translation, level-shifting, voltage conversion, and I/O expansion. Additionally, PCA9306D,112 can be used for translating between two- and four-wire serial buses, eliminating the need for multiple level-shifting ICs and reducing design complexity. It is also ideal for applications requiring various voltage levels, from 5V to 3V and from 1.8V to 3V.

The PCA9306D,112 has two 8-bit bidirectional translators that can be used to translate from 1.8V to 3V and from 5V to 3V. Each translator has two sets of generic voltage-level inputs and parallel outputs, eliminating the need for a pull-up resistor. The inputs can be compared to the internal reference voltage of the translator, which is adjustable (3.3V, 3V or 2.5V) according to the application. The device can also detect a low voltage input, allowing it to detect whether it is connected to a 3V or 5V bus.

The PCA9306D,112 includes a built-in low-voltage regulator and logic level translator to make a voltage-level translation compatible with both 3V and 5V systems. It also requires only one low-voltage supply, leaving the other supply to be configured as needed. It is compatible with I2C, SMBus and other two-wire serial bus systems.

The PCA9306D,112 is a versatile and cost-effective solution for translating between 1.8V and 3V and between 3V and 5V. It can be used for applications such as digital audio, USB, IR, bus-level translation, level-shifting, voltage conversion, and I/O expansion. It is also suitable for applications requiring various voltage levels and translation between two- and four-wire serial buses. By eliminating the need for manual switchover and pull-up resistors, the PCA9306D,112 increases design flexibility and reduces component count, allowing the user to create designs that are both cost-effective and reliable.

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