PCA9516 데이터 시트보기 (PDF) - Philips Electronics

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PCA9516

5-channel I2C hub

Philips Electronics 

Philips Semiconductors

5-channel I2C hub

9th CLOCK PULSE

Product data

PCA9516

2 V/DIV

VOL OF MASTER

VOL OF PCA9516

Figure 5. Bus 0 waveform

SW00965

On the Bus 1 side of the PCA9516, the clock and data lines would

have a positive offset from ground equal to the VOL of the PCA9516.

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.

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 PCA9516 (see VOL – Vilc in the DC

Characteristics section) to be recognized by the PCA9516 and then

transmitted to Bus 0.

9th CLOCK PULSE

2 V/DIV

VOL OF SLAVE

Figure 6. Bus 1 waveform

VOL OF PCA9516

SW00966

2002 May 13

5

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