DS1315 datasheet(4/21 Pages) DALLAS

Part #	DS1315

Description	Phantom Time Chip

PDF	21 Pages

Scroll/Zoom	100%

Manufacturer	DALLAS [Dallas Semiconductor]

Direct Link	https://www.maximintegrated.com/en.html

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DS1315

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outside the memory block can be interleaved with CEI cycles without interrupting the pattern recognition

sequence or data transfer sequence to the Time Chip.

A standard 32.768 kHz quartz crystal can be directly connected to the DS1315 via pins 1 and 2 (X1, X2).

The crystal selected for use should have a specified load capacitance (CL) of 6 pF. For more information

on crystal selection and crystal layout considerations, please consult Application Note 58, “Crystal

Considerations with Dallas Real Time Clocks.”

TIME CHIP COMPARISON REGISTER DEFINITION Figure 2

NOTE:

The pattern recognition in Hex is C5, 3A, A3, 5C, C5, 3A, A3, 5C. The odds of this pattern being

accidentally duplicated and causing inadvertent entry to the Phantom Time Chip are less than 1 in 10

19.

DS1315 Datasheet(PDF) 4 Page - Dallas Semiconductor