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B-2
© Copyright ARM Limited 1999. All rights reserved.
ARM DUI 0125A
B.1 Electrical specification
Table B-1 shows the core module electrical characteristics for the system bus interface.
The core module uses 3.3V and 5V source. The 12V inputs are supplied by the
motherboard but not used by the core module.
Table B-1 Core module electrical characteristics
Symbol Description Min Max Unit
3V3 Supply voltage (interface signals) 3.1 3.5 V
5V Supply voltage 4.75 5.25 V
V
IH
High-level input voltage 2.0 3.6 V
V
IL
Low-level input voltage 0 0.8 V
V
OH
High-level output voltage 2.4 - V
V
OL
Low-level output voltage - 0.4 V
C
IN
Input capacitance - 20 pF