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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The P82B715P is an I²C Bus Extender buffers both the serial data (SDA) and serial clock (SCL) signals on the I²C bus and allows for extension of the I²C bus, while retaining all the operating modes and features of the I²C system. The I²C bus capacitance limit of 400pF restricts practical communication distances to a few meters. The advantages of the P82B715 is that it can isolate bus capacitance such that the total loading (devices, connectors, traces and wires) of the new bus or remote I²C nodes are not apparent to other I²C buses (or nodes). This is achieved by using one P82B715 device at each end of a long cable. The pin Lx of one P82B715 device has to be connected to Lx of the second P82B715 (similarly for Ly). This allows the total system capacitance load to be around 3000pF.
Supports bidirectional data transfer of I²C bus signals
Dual bidirectional unity-voltage-gain buffer with no external directional control required
Drives 10x lower-impedance bus wiring for improved noise immunity
Multi-drop distribution of I²C signals using low-cost twisted-pair cables
I²C bus operation over 50m of twisted-pair wire
Latch-up performance exceeds 100mA per JESD 78
ESD protection exceeds JESD 22

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P82B715P Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	8 Pin
Case/Package	PDIP-8
Supply Voltage (DC)	3.00V ~ 12.0V
Number of Outputs	2 Output
Output Current	60 mA
Supply Current	22 mA
Number of Channels	1 Channel
Number of Positions	8 Position
Input Capacitance	3000 pF
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.5V ~ 12V
Supply Voltage (Max)	12 V
Supply Voltage (Min)	3 V
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Size-Length	10.16 mm
Size-Width	6.6 mm
Size-Height	4.57 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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