DS28E17Q+

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The DS28E17Q+, also known as the Protocol Transaction Controller, is a hot-plug, low-cost protocol bridge device used to bridge I2C and SPI protocols. Its small board form factor and low-cost components make it ideal for use in cost-sensitive applications such as consumer electronics, automotive, and wearables.

With a high level of flexibility, the device’s low-power design and integrated temperature sensor make it an ideal choice for applications where power and energy savings are important. The small form factor also makes it ideal for applications where space is limited or cables must be run between components.

The DS28E17Q+ supports two different I2C speeds, standard-mode (100KHz) and fast-mode (400KHz), with a maximum data rate of 400KHz. This makes it easy to integrate the DS28E17Q+ into systems that need an ultra-low power I2C bridge and fast protocol bridge device. The device also has an integrated clock generator that allows it to provide clock signal for the application reducing external components.

The device includes an integrated temperature sensor and an open drain output for system wakeup, making it ideal for applications such as battery powered systems where idle current needs to be kept low. With its integration of level-shifting transistors for easy I2C and SPI bridging, this device is suitable for both low- and high-pin-count applications.

The DS28E17Q+ works by receiving data through the 4-wire I2C port and transmitting it through the single wire SPI interface. The device then forwards incoming SPI data to the I2C port, allowing the device to talk to other SPI devices on the same bus. The device has two address lines that can be used to select the device on either I2C or SPI bus, allowing two devices to be connected to the same bus.

The device has a built-in load switch, known as the ESD protection circuit, that protects the part from ESD damage. This ensures the reliability performance of the device, as it helps to reduce the damage done by electrical discharge. The device also has an integrated watchdog timer, giving improved system robustness by detecting any system freezes or communication errors.

In addition, the device supports multiple features such as slave write and read, burst read and write, block transactions, register write and read, and interrupts for generation of events. These features make the DS28E17Q+ suitable for a wide range of applications, from consumer electronics and automotive control systems, to mobile and data communications.

Overall, the DS28E17Q+ is an ideal bridge device for applications needing fast communication, low-power operation, and a small form factor. Thanks to its integrated protection circuitry, robust operating conditions and many features, the device provides a high level of reliability and flexibility to designers. The device is also cost-effective, making it a great choice for applications that need low-cost components.

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