PI4ULS3V204LE

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Introduction:

PI4ULS3V204LE is a high-performance digital signal processing (DSP) language-compatible logic translator device for interfacing two frequency-independent data buses with CMOS compatible translation. It is a 2.0V/3.3V logic translator device that serves as a bidirectional translator from 1.8 to 3.3V and from 3.3V to 1.8V in two low-voltage systems. This translator device is made with a SOIC-20 package. The device includes all TTL and CMOS inputs and outputs.

Application field:

The PI4ULS3V204LE translator is designed to bridge the 1f to 3.3V logic gap in Asynchronous, Synchronous, and Variable clock applications. It is suitable for mobile, automotive, point-to-point data bus and other embedded system applications. It provides a complete/fast solution to provide compatibility between two different CMOS logic levels. It supports a high performance operation up to 200MHz. The design is typically used in embedded systems such as motor controllers, low- and medium-power medical and industrial systems, data acquisition systems, and automotive applications.

Working Principle:

The PI4ULS3V204LE transceiver is a low-voltage logic translator that interfaces between two logic families (1.8V and 3.3V). The translator offers device-level control between two different logic families and signaling protocols with over 25mA of drive strength. The translator provides a high performance operation up to 200MHz, allowing design engineers to take advantage of the flexibility and high speed of the application-specific integrated circuit (ASIC) platform. The device features glitch-free switching to minimize NSSE (Near-end crosstalk) and EMI/RFI disturbances.

The device supports two operating power levels, 1.8V and 3.3V, and is configured to automatically detect the operating voltage when power is supplied. With two independent power supply pins, the device can be operated from two separate supplies if required. The device also includes short circuit protection, which safeguards the device from damage if two power supplies are connected together. The device includes two enable input pairs and two output pairs, both of which can be used for either input or output purposes.

The PI4ULS3V204LE logic translator utilizes an "open-drain" architecture to provide a high degree of flexibility in system architecture design and works in various topologies. It is a true bidirectional translator with low power consumption and a minimum propagation time. Allowing the power supply and data inputs to be independently specified, the device ensures the right output level and thus the right data integrity. The device is designed to be easily interfaced in any system, allowing a wide range of interface configurations.

To control the functionality of the device, the PI4ULS3V204LE: Translator provides a number of user-configurable options, including a separate input/output enable pins for high-speed circuits, the ability to set the output voltage level to match the supplied voltage, and an active low reset pin for resetting the logic device. The device also includes an inhibit pin that can be interfaced with the host device to disable the logic device.

Conclusion:

The PI4ULS3V204LE logic translator is a high-performance digital signal language-compatible translator device for interfacing two frequency-independent data buses with CMOS compatible translation. It is suitable for embedded system applications such as motor controllers, low- and medium-power medical and industrial systems, data acquisition systems, and automotive applications. It provides a complete/fast solution to provide compatibility between two different CMOS logic levels, with a maximum operating frequency of 200MHz. The device features glitch-free switching to minimize crosstalk and EMI/RFI disturbances and includes short-circuit protection and two independent power supply pins. The device provides a high degree of flexibility in system architecture design and works in both asynchronous and synchronous systems.

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