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What is I2C bus extender?
The P82B715 is a bipolar IC intended for application in IC-bus and derivative bus systems. While retaining all the operating modes and features of the IC-bus it permits extension of the practical separation distance between components on the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines.
What is a bus extender?
(1) A board that pushes a printed circuit board out of the way of surrounding boards for testing purposes. It plugs into an expansion slot, and the expansion card plugs into the bus extender. (2) A device that extends the physical distance of a bus.
How long can an I2C bus be?
about 1 meter
So the maximum bus length of an I2C link is about 1 meter at 100 Kbaud, or 10 meters at 10 Kbaud. Unshielded cable typically has much less capacitance, but should only be used within an otherwise shielded enclosure.
What is I2C bus controller?
I²C (Inter-Integrated Circuit) Controller is a two-wire, bi-directional serial bus that provides simple and efficient method of data transmission over a short distance between many devices. Avalon compliant I²C Controller provides an interface between Nios II processor and I²C device.
What is I2C bus capacitance?
The I2C standard specifies a max bus capacitance (CBUS MAX) of 400 pF for both Standard Mode and Fast Mode and specifies 550 pF for Fast Mode Plus.
Which is the NXP I2C bus extender IC?
NXP PCA9600 I2C bus extender IC is used as the main component of this module. The PCA9600 is designed to isolate I²C-bus capacitance, allowing long buses to be driven in point-to-point or multidrop applications. It can operate at speed up to at least 1 MHz.
How to extend the range of I2C connections?
I2C-Bus-extender extend the range of I2C connections by modulating with an active driver, allows for 200m distance Principally I like the I2C bus, and it is very widely used to talk between components on a pcb level. But higher capacitance and inducted RF puts the little guy at risk to loose data.
What are i 2 C hubs and extenders used for?
I 2 C-bus repeaters, hubs and extenders are also used to isolate capacitance from the backplane in a wide array of device applications. Our new I 2 C fast-mode plus (Fm+) devices go from zero to 1 MHz so you can go to the next design level with higher data rates and up to 540 pF bus loading.
How to calculate capacitance for I2C bus extender?
I2C-bus extender This equivalent capacitance is the sum of the capacitance on the buffered bus plus 10 times the sum of the capacitances on all the connected I2C-bus nodes. The calculated value should not exceed 4 nF.