Hitachi HTE725025A9A364, HTE725050A9A364 Interface connector, Hitachi Global Storage Technologies

Hitachi Global Storage Technologies

Interface connector

The figure below shows the physical pin location

ƒAll pins are in a single row, with a 127 mm (0.050”) pitch.

ƒThe comments on the mating sequence in Table in the section 7.3 apply to the case of back-plane

ƒblind-mate connector only. In this case, the mating sequences are:(1)the ground pins P4 and P12;(2) the pre-charge power pins and the other ground pins; and (3) the signal pins and the rest of the power pins.

ƒThere are three power pins for each voltage. One pin from each voltage is used for pre-charge in the backplane blind-mate situation.

ƒIf a device uses 3.3V, then all V33 pins must be terminated. Otherwise, it is optional to terminate any of the V33 pins

ƒIf a device uses 5.0V, then all V5 pins must be terminated. Otherwise, it is optional to terminate any of the V5 pins

ƒIf a device uses 12.0V, then all V12 pins must be terminated. Otherwise, it is optional to terminate any of the V12 pins.

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