PI3LVD400ZFE

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The PI3LVD400ZFE is a selective voltage-level shifter and is a member of the PI3LVDM family, offering low-voltage differential signaling. The ZFE suffix is used to denote an adjustable input threshold, allowing the user to tune the shift voltage level based on their particular application. It supports two data channels, each with two input levels and two output levels, and provides support for standard differential signaling in low voltage systems and peripheral intelligent systems.

The PI3LVD400ZFE can be categorized as Logical - Signal Switches, Multiplexers, Decoders. It is also a logic output voltage converter, meaning that it enables electrical signals with different voltage levels on different sides of the device to be transferred between different devices. This, coupled with its low-voltage differential signaling capabilities, makes it useful for applications that need to access or interact with systems or devices from multiple voltage domains.

The PI3LVD400ZFE supports two input levels and two output levels, two data channels per device and four bytes of output data per channel. The input levels are configurable using a single Vin pin on the device and range from 0.2V to 1.95V. Both channels feature an adjustable input threshold and a selectable output level based on the Vin level selected. The output levels are 0V to 1.8V for the low to medium voltage range and 0V to 3.3V for the high voltage range.

The PI3LVD400ZFE is also extremely power efficient, consuming only 1.1µA of quiescent current. It is fully operational down to 1.2V and can be used with both 1.2GHz and 2.4GHz clock frequencies. In addition, it can be used in dissipative environments due to its extremely low leakage current, which allows it to operate in ambient temperatures up to +85°C.

In terms of operating principle, the PI3LVD400ZFE compares the input data and clock signals to decide which level is needed. The device then uses an internal voltage divider and digital comparator to select the appropriate output level. Depending on the input signal level, the device will select either the upper level (1.8V or 3.3V) or the lower level (0V). The output data is then 0 or 1 depending on whether the input signal matches the selected level.

The PI3LVD400ZFE is used primarily in applications that require transferring data between different voltage domains, such as from a low voltage system to a high voltage system. It is also useful for peripherals with intelligent systems, such as display controllers. Due to its power efficiency and wide operating range, the PI3LVD400ZFE is an effective and reliable choice for these types of applications.

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