ISL3034EIRTZ-T

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The ISL3034EIRTZ-T is a dual-channel, I2C/SMBus to SMBus/PMBus translator and level shifter developed by Intersil, a subsidiary of Renesas Electronics. The device helps support inter-processor communication and system management functions inside an electronic system. It provides two independent logic-level translation channels, allowing two I2C or SMBus ports to be translated to two SMBus/PMBus ports. The device also provides a level shift capability that allows SMBus/PMBus bus voltages of up to 28 V to be translated to I2C/SMBus bus voltages.

The ISL3034EIRTZ-T supports various SMBus and I2C protocol applications. The device is capable of data transmission at up to 1 MHz on the I2C/SMBus side, while the maximum possible data transmission rate on the SMBus/PMBus side is limited only by the external host’s capability. This allows for fast communication and system management functions in the electronic system.

The device supports multiple error detection functions (CRC, ERR) and features an on board watchdog timer to monitor any master or slave inactivity. In addition, the device also supports push-pull and open-drain modes for both I2C/SMBus and SMBus/PMBus. This allows for flexible system design and implementation.

ISL3034EIRTZ-T accomplishes these tasks with a wide input voltage range of 1.6 V to 28V. The device’s wide input voltage makes it an ideal solution for applications that require level shifting between two I2C/SMBus and SMBus/PMBus buses. Its low power consumption also makes it an attractive choice for power sensitive applications. It is suitable for applications in medical, automotive, telecom, industrials, communication, lighting, and consumer applications.

The ISL3034EIRTZ-T utilizes the typical translation and level shifting setup. The I2C/SMBus signals received by the device are translated to the SMBus/PMBus signals with voltage levels suitable for the operation of the systems being interfaced with. It is capable of switching from I2C/SMBus to SMBus/PMBus and vice-versa as well as providing level shifting between the two signal busses. The translation and level shifting are accomplished via a circuit configuration consisting of FETs and resistors which reads the incoming signals and translates them to the desired levels, depending on the type of signal.

The device also features programmable input pull-ups and programmable switching thresholds. The input pull-up resistors, which are located inside the device, support two I2C/SMBus interfaces simultaneously while keeping the logic levels of the I2C/SMBus lines compatible with each other. The programmable switching thresholds allow for further customizability, allowing the user to fine-tune the translator/level shifter to their specific application. The adjustable switching thresholds also enable the device to be used with the same I2C/SMBus and SMBus/PMBus line interpreter but with different external components.

Overall, the ISL3034EIRTZ-T is an ideal solution for bridging the gap between logic levels on I2C/SMBus and SMBus/PMBus buses. Its wide input voltage range and multiple features make it perfectly suited for applications require translations and level shifting between two different bus systems. It is an invaluable tool for a wide range of applications, and is sure to deliver maximum reliability, accuracy and performance.

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