BCM Advanced Research
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5
Electrical and Mechanical Specifications
This section specifies Electrical parameters for the IN440EX motherboard and describes its
Mechanical characteristics.
Absolute Maximum Ratings
Stresses beyond those shown in the following table may cause permanent damage to
the system (provided for stress testing only).
Table 5.1. Absolute Maximum Ratings
Operating Temperature
0°C to + 55°C
Storage Temperature
-55°C to + 150°C
Voltage on any Signal with Respect to VSS
-0.3 to Vcc +0.3 V
Supply Voltage with Respect to VSS (5v)
-0.3 to +5.5 V
Supply Voltage with Respect to VSS (3.3V)
-0.3 to +4.0 V
The topics in this section specify the normal operating conditions for the IN440EX
motherboard. Exposure to absolute maximum rating conditions for extended periods
may affect the system reliability.
Electrical
IN440EX DC specifications are summarized here, for motherboard signaling
environment, power connectors and 5V power budget. Refer to PCI Local Bus
Specification Rev. 2.1, and ISA Bus Specification for PCI and ISA DC and AC
electrical specifications. Refer also to the documentation for ASIC devices used on the
IN440EX motherboard.
