User’s Manual
21
A.2 Conformal Coating
The area around the crystal oscillator and the battery backup circuit on the RabbitLink has had the
Dow Corning silicone-based 1-2620 conformal coating applied. The conformally coated area is
shown in Figure A.2-1. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.
Figure A.2-1 RabbitLink Areas Receiving Conformal Coating
Any component in the conformally coated area may be replaced using standard soldering proce-
dures for surface-mount components. Apply a new conformal coating afterwards for continued
protection against the effects of moisture and contaminants.
NOTE: For more information on conformal coatings, refer to Rabbit Semiconductor
Technical Note 303, “Conformal Coatings.”
Flash
EPROM
Flash
EPROM
Y4
C37
C38
C72
R30
Conformal
Coating
90
15
65
SRAM
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