20-101-1051 Datasheet, PDF (86/165 Pages) List of Unclassifed Manufacturers – C-Programmable Core Module with NAND Flash Mass Storage and Ethernet

A.6 Conformal Coating
The areas around the 32 kHz real-time clock crystal oscillator have had the Dow Corning
silicone-based 1-2620 conformal coating applied. The conformally coated area is shown
in Figure A-6. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.
Conformally coated
areas
R13
R45
U2
U6
U5
J1
R80 R64 R77
R59
R10
Y1
C4
C1
R5
R9 R85 R70 R86
R6
U1 ^C5
R29
R4
R7
C2
U16
C3 U3
R8
C11
C15
C18
J6
C21
Q2
U4 R18 R22
R1
R14
R15
C35
R26
R27
C36
Y2
C58 R44
R53
R54
R31
C80
C61
R30
R82
R67 ^C105
U13
C78
C74
C86
J2
L2
R35
R36
R37
R38
L4
DS2
Figure A-6. RCM3365/RCM3375 Areas Receiving Conformal Coating
Any components in the conformally coated area may be replaced using standard soldering
procedures for surface-mounted components. A new conformal coating should then be
applied to offer continuing protection against the effects of moisture and contaminants.
NOTE: For more information on conformal coatings, refer to Technical Note 303,
Conformal Coatings.
80
RabbitCore RCM3365/RCM3375