DS2405(1999) Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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производитель

DS2405
(Rev.:1999)

Addressable Switch

Dallas Semiconductor -> Maxim Integrated 

DS2405

that same device is not found using an active-only search, CONTROL must be a logical 0 and the PIO pin

is being held low by some other device or perhaps a fault condition such as a PIO shorted to ground. A

second fault condition may be detected if Search ROM for a given device returns read-1 time slots

(PIO=logical 1) but Active-Only Search ROM is successful (CONTROL=logical 1) and returns read-0

time slots for the same device, indicating the possibility that PIO may be shorted to a positive voltage.

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