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Pololu I²C Isolator with Connectors, ISO1640
This module enables galvanically isolated bidirectional I²C communication between two devices. The bidirectionality applies to both SDA and SCL, which allows for clock stretching. Side 1 operates from 3 V to 5.5 V, and side 2 operates from 2.25 V to 5.5 V. This version has JST SH-style 4-pin connectors that are compatible with Qwiic and Stemma QT.
Alternatives available with variations in these parameter(s): connectors? isolated power transfer? Select variant…
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File downloads
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Dimension diagrams of the Pololu I²C Isolator, ISO1640 (379k pdf)
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3D model of the Pololu I²C Isolator, ISO1640 (4MB step)
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Drill guide for the Pololu I²C Isolator, ISO1640 (15k dxf)
This DXF drawing shows the locations of all of the board’s holes.
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