Figure 2

APPLICATION SUGGESTION

Figure 3 illustrates how the L4903’s disable input

may be used in a CMOS

µComputer application.

nently a CMOS time of day clock and a CMOS

supplying non-essential circuits, is turned OFF un-

der control of a

µP unit.

Configurations of this type are used in products

where the OFF switch is part of a keyboard

scanned by a micro which operates continuously

even in the OFF state.

Figure 3

L4903

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