UPD780204 datasheet(99/418 Pages) NEC

Part #	UPD780204

Description	8-Bit Single-Chip Microcontrollers

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Manufacturer	NEC [NEC]

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CHAPTER 4

PORT FUNCTIONS

99

User’s Manual U11302EJ4V0UM

4.5 Selection of Mask Option

The following mask option is provided in mask ROM versions. The

µPD78P0208 has no mask option.

Table 4-4. Comparison Between Mask Option of Mask ROM Version and

µPD78P0208

Pin Name

Mask Option of Mask ROM Version

µPD78P0208

Can incorporate pull-down resistors in

1-bit units.

Can incorporate pull-up resistors in 1-bit

units.

Can incorporate pull-down resistors in

1-bit units.

Can incorporate pull-down resistors in

1-bit units.

The pull-down resistors can be specified to

be connected to VLOAD or VSS in 4-bit units

from P80.

Does not incorporate pull-down resistors.

Does not incorporate pull-up resistors.

Incorporates pull-down resistors

(connected to VLOAD).

Does not incorporate pull-down resistors.

P30/TO0 to P32/TO2, P33/

TI1, P34/TI2, P35/PCL, P36/

BUZ, P37

P70 to P74

FIP0 to FIP12

P80/FIP13 to P87/FIP20,

P90/FIP21 to P97/FIP28,

P100/FIP29 to P107/FIP36,

P110/FIP37 to P117/FIP44,

P120/FIP45 to P127/FIP52

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