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XT65/XT75 Hardware Interface Overview

7.3 Board-to-Board Application Connector

XT65_XT75_HO_v00.130 Page 47 of 67 2006-10-12

Confidential / Preliminary

7.3 Board-to-Board Application Connector

This section provides the specifications of the 80-pin board-to-board connector used to connect XT65/XT75 to

the external application.

Connector mounted on the XT65/XT75 module:

Type: 52991-0808 SlimStack Receptacle 80 pins, 0.50mm pitch, for stacking heights from 3.0 to 4.0mm,

see Figure 14 for details.

Supplier: Molex, http//www.molex.com

Table 19: Technical specifications of Molex board-to-board connector

Parameter Specification (80-pin B2B connector)

Electrical

Number of Contacts 80

Contact spacing 0.5mm (.020")

Voltage 50V

Rated current 0.5A max per contact

Contact resistance 50mΩ max per contact

Insulation resistance > 100MΩ

Dielectric Withstanding Voltage 500V AC (for 1 minute)

Physical

Insulator material (housing) White glass-filled LCP plastic, flammability UL 94V 0

Contact material Plating: Gold over nickel

Insertion force 1

< 74.4N

Insertion force 30

< 65.6N

Withdrawal force 1

> 10.8N

Maximum connection cycles 30 (@ 70mΩ max per contact)

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