Rainbow Electronics MAX6902 - Manual (Page 16)

MAX6902
SPI-Compatible RTC in a TDFN
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GROUND PLANE
VIA CONNECTION
GROUND PLANE
VIA CONNECTION
GUARD RING
SM WATCH CRYSTAL
LAYER 1 TRACE
LAYER 2 LOCAL GROUND PLANE
CONNECT ONLY TO PIN 4
GROUND PLANE VIA
V CC PLANE
VIA CONNECTION
GROUND PLANE
VIA CONNECTION
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0.1 µF
SM CAP
MAX6902
Figure 7. MAX6902 Crystal PC Board Layout