Rainbow-electronics DS1254 Manual de usuario Pagina 17

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DS1254
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DS1254 RECOMMENDED LAND PATTERN (With Overlaid Package Outline)
The DS1254 ball grid array (BGA) is a subset of the industry-standard 40mm BGA format, with all balls
on a 50mil grid. Corner balls have been removed to provide space for the electrical and mechanical
interface features that facilitate attachment of the DS3800 Battery Cap.
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NOTE
Note
:
Ground shield to isolate RTC XTAL from EMI.
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