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Sandbox Electronics

Active I2C Long Cable Extender P82B715 Module

Active I2C Long Cable Extender P82B715 Module

Normaler Preis €21.95 EUR
Normaler Preis Verkaufspreis €21.95 EUR
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35 in stock


This module is designed to enable long-range I2C communications which extend the cable length from several meters to about 50 meters. Operating with any I2C master, slave or bus buffer is the primary advantage of this module. NXP P82B715 I2C bus extender IC is used as the main component of this module. The module has four pull-up resistors on board: two on the unbuffered bus side and another two on the buffered bus side. Additionally, there are two LEDs that indicate the SCL and SDA activities on the bus. Both the LEDs are driven by transistors which draw negligibly small current from the SCL and SDA lines.



• Multi-drop distribution of I2C-bus signals using low-cost twisted-pair cables

• Dual, bidirectional, unity voltage gain buffer with no external directional control required

• Compatible with I2C-bus and its derivatives SMBus, PMBus, DDC, etc.

• Supply voltage range 3V to 12V

• Clock speeds to at least 100 kHz and 400 kHz when other system delays permit

• 4-pin interlock connectors onboard

• 4-pin interlock cables included in the package

• Compact size

Shipping & Returns

It may happen that you want to return an order. Because the product does not suit you, maybe there is another reason why you would not want the order. Whatever the reason, you have the right to cancel your order up to 14 days after receipt without giving a reason.

After cancellation you have 14 days to return your product. You will then be credited 85% order amount excluding shipping. For more information click the following link: /pages/shipping-and-returns

What's Included?

• A fully tested Active I2C Bus Extender Module module

• A 4-pin 30cm cable (with interlock connector on one end, free on the other)


Active I2C Long Cable Extender P82B715 Module


• Product Datasheet

• P82B715 Datasheet

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