DS2506
READ/WRITE TIMING DIAGRAM Figure 10 (cont’d)
Write-zero Time Slot
Read-data Time Slot
NOTE:
For read-data time slots the optimal sampling point for the master is as close as possible to the end time
of the tRDV period without exceeding 15 µs for regular speed or 2 µs for overdrive speed. For the case of
a read-one time slot, this maximizes the amount of time for the pull-up resistor to recover the line to a
high level. For a read-zero time slot it ensures that a read will occur before the fastest 1-Wire device
releases the line (tRELEASE = 0).
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