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2.9 Mask Options
The mask ROM versions ( µ PD78011BY, µ PD78012BY, µ PD78013Y, µ PD78014Y) have mask options. By
specifying the mask options when ordering, the pull-up resistors and pull-down resistors listed in Table 2-1 can be
incorporated. When these resistors are necessary, the number of external components and mounting space can be
saved by utilizing the mask options.
Mask options provided in the µ PD78014Y subseries are shown in Table 2-1.
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CHAPTER 2 OUTLINE ( µ PD78014Y Subseries)
Table 2-1. Mask Options in Mask ROM Versions
Pin Name
P60 to P63
Pull-up resistors can be incorporated bit-wise.
Mask Option
61
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