
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.
0.250
0.500
Ground shield to isolate RTC XTAL from EMI.
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