UPD780204 Datasheet, PDF (44/418 Pages) NEC – 8-Bit Single-Chip Microcontrollers

CHAPTER 2 PIN FUNCTIONS
Table 2-1. Types of Pin I/O Circuits (2/2)
Pin Name
µPD78P0208
P30/TO0
P31/TO1
P32/TO2
P33/TI1
P34/TI2
P35/PCL
P36/BUZ
P37
Mask ROM version
P70 to P74
I/O
I/O
Circuit Type
5-A
I/O
8-A
5-A
13-B
I/O
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
IC
µPD78P0208
P70 to P74
14-A
15-C
—
13-D
Output
I/O
—
I/O
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
VPP
RESET
XT2
AVREF
AVDD
AVSS
VLOAD
14
14-B
15-B
—
2
16
—
Output
Output
I/O
—
Input
—
Recommended Connection of Unused Pins
Input: Independently connect to VDD or VSS via a resistor.
Output: Leave open.
Input: Independently connect to VDD or VSS via a resistor^Note.
Output: Leave open.
Leave open.
Input: Independently connect to VDD or VSS via a resistor^Note.
Output: Leave open.
Connect directly to VSS.
Input: Independently connect to VDD or VSS via a resistor.
Output: Leave open.
Leave open.
Leave open.
Input: Independently connect to VDD or VSS via a resistor.
Output: Leave open.
Connect directly to VSS.
—
Leave open.
Connect directly to VSS.
Connect directly to VDD.
Connect directly to VSS.
Note Leave open when an on-chip pull-up or pull-down resistor is specified by the mask option.
44
User’s Manual U11302EJ4V0UM