DS1254 Maxim, DS1254 Datasheet - Page 16

• Manufacturer Part Number: DS1254
• Description: The DS1254 is a fully nonvolatile static RAM (NV SRAM) (organized as 2M words by 8 bits) with built-in real-time clock
• Manufacturer: Maxim

DS1254
PACKAGE INFORMATION (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package
outline information, go to www.maxim-ic.com/packages.)
Recommended Land Pattern (with Overlaid Package Outline)
The DS1254 BGA is a subset of the industry-standard 40mm BGA format, with all balls on a 50-mil 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
NOTE
0.500
0.150
NOTE: GROUND SHIELD TO ISOLATE RTC XTAL FROM EMI.
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