Rainbow Electronics DS2433 - Manual (Page 21)

DS2433
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the pullup resistor to recover to a high level. For a read-zero time slot, it ensures that a read will occur
before the fastest device(s) release the line.
13) The duration of the low pulse sent by the master should be a minimum of 1µs with a maximum value
as short as possible to allow time for the pullup resistor to recover the line to a high level before the 1-
Wire device samples in the case of a write-one time or before the master samples in the case of a read-
one time.