NEC 2.9 Mask Options

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CHAPTER 2 OUTLINE ( µ PD78054Y Subseries)
Maskable Internal: 13
Vectored External: 7
interrupt Non-maskable Internal: 1
source Software 1
Test input Internal: 1
External: 1
Supply voltage VDD = 2.0 to 6.0 V
Operating ambient temperature TA = –40 to +85 °C
Package • 80-pin plastic QFP (14 × 14 mm, Resin thickness: 2.7 mm)
• 80-pin plastic QFP (14 × 14 mm, Resin thickness: 1.4 mm)
• 80-pin ceramic WQFN (14 × 14 mm) ( µ PD78P058 only)
2.9 Mask Options
The mask ROM versions ( µ PD78052Y, 78053Y, 78054Y, 78055Y, 78056Y, 78058Y) provide pull-up resistor mask
options which allow users to specify whether to connect a pull-up resistor to a specific port pin when the user places
an order for the device production. Using this mask option when pull-up resistors are required reduces the number
of components to add to the device, resulting in board space saving.
The mask options provided in the
µ PD78054Y subseries are shown in Table 2-1.
Table 2-1. Mask Options of Mask ROM Versions
Pin names Mask options
P60 to P63 Pull-up resistor connection can be specified in 1-bit units.
Item Part Number
µ PD78052Y µ PD78053Y µ PD78054Y µ PD78055Y µ PD78056Y µ PD78058Y µ PD78P058Y