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PCA9515

I2C-bus repeater

Philips Electronics 

Philips Semiconductors

I2C-bus repeater

Product data sheet

PCA9515

On the Bus 1 side of the PCA9515, the clock and data lines would

have a positive offset from ground equal to the VOL of the PCA9515.

After the 8th clock pulse, the data line will be pulled to the VOL of the

slave device that is very close to ground in our example.

9th CLOCK PULSE

It is important to note that any arbitration or clock stretching events

on Bus 1 require that the VOL of the devices on Bus 1 be 70 mV

below the VOL of the PCA9515 (see VOL – Vilc in the DC

Characteristics section) to be recognized by the PCA9515 and then

transmitted to Bus 0.

2 V/DIV

VOL OF SLAVE

Figure 5. Bus 1 waveform

VOL OF PCA9515

SW00865

2004 Jun 24

5

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