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OCR: Master Write "O" Slot Master Write "O" Slot 60us<T, "0"<120us Vcc - 1-Wire Bus GND DS2404 Samples „ >1 us DS2404 Samples Min Typ Max Min Typ "Maxì *- 15us --- 15us->4-30us-> -15us - > <- 15us --- 30us- Master Read "O" Slot Master Read "0" Slot Voc 1-Wire Bus GND Master Samples 51 US Master Samples *- 15us -**- 15us - **- 30us 15us Line Type Legend: asom Bus master active low DS2404 active low *me Both bus master and DS2404 active low Resistor pull-up Figure 5: 2404 1-wire data formats.