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DS90UB913A-Q1 / I2C apply timing

Ryuji
Guru 20090 points

Other Parts Discussed in Thread: DS90UB913A-Q1

Hello,
 
After a power supply of DS90UB913A-Q1 is on, can I apply I2C signal to the device immediately?
If we should wait any time to apply I2C signal, please let me know that time.
Also, if there are any difference about time between External Oscillator mode and PCLK mode,  please let me know.
 
Best Regards,
Ryuji Asaka 
  • 0
    TI__Genius 13475 points

    In most '913A circuits, there is a time delay built in via the PDB pin - this usually has an RC which holds the device in a powered down mode for a short time after the supplies come on to allow for internal systems to stabilize.   After the time delay set by PDB, you can being sending I2C signals to the the '913A.   This should be the save for PCLK mode and for Ext Osc mode.