DS21T09S データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS21T09S

Plug and Play SCSI Terminator

Dallas Semiconductor -> Maxim Integrated 

DS21T09

BUS GROUND SENSING

If internal and external SCSI devices are connected to the SCSI bus, the DS21T09 will disconnect from

the SCSI bus according to the circuit in Figure 3. To utilize this automatic disconnect method of bus

sensing, configure the DS21T09 as shown in Figure 4. The PDI (Power Down Internal) pin should be

connected to pin 22 of the internal SCSI connector, and the PDE (Power Down External) connected to

pin 36 of the external SCSI connector.

BUS GROUND SENSING CIRCUIT Figure 3

BUS GROUND DETECT CONFIGURATION Figure 4

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