UPD78F0138 NEC, UPD78F0138 Datasheet - Page 45

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

2.3 Pin I/O Circuits and Recommended Connection of Unused Pins
Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the
P00/TI000
P01/TI010/TO00
P02/SO11
P03/SI11
P04/SCK11
P05/SSI11
P06/TI011
P10/SCK10/TxD0
P11/SI10/RxD0
P12/SO10
P13/TxD6
P14/RxD6
P15/TOH0
P16/TOH1/INTP5
P17/TI50/TO50
P20/ANI0 to P27/ANI7
P30/INTP1 to P32/INTP3
P33/TI51/TO51/INTP4
P40 to P43
P50 to P53
P60, P61 (Mask ROM version)
P60, P61 (Flash memory version)
P62, P63 (Mask ROM version)
P62, P63 (Flash memory version)
P70/KR0 to P77/KR7
P120/INTP0
P130
P140/PCL/INTP6
P141/BUZ/INTP7
Table 2-2 shows the types of pin I/O circuits and the recommended connections of unused pins.
Refer to Figure 2-1 for the configuration of the I/O circuit of each type.
780136, 780138, and 78F0138.
Note
Note
Note
Note
Note
Pin Name
/TO01
/TI001
Note
Note
8-A
5-A
8-A
5-A
8-A
9-C
8-A
5-A
13-S
13-R
13-V
13-W
8-A
3-C
8-A
I/O Circuit Type
Table 2-2. Pin I/O Circuit Types
CHAPTER 2 PIN FUNCTIONS
User’s Manual U16228EJ2V0UD
I/O
Input
I/O
Output
I/O
I/O
Output: Leave open.
Input:
Output: Leave open.
Input:
Output: Leave this pin open at low-level output after clearing
Input:
Output: Leave open.
Leave open.
Output: Leave open.
Input:
Connect to EV
Input:
Independently connect to EV
Independently connect to EV
Connect to EV
the output latch of the port to 0.
Independently connect to EV
Independently connect to EV
Recommended Connection of Unused Pins
DD
or EV
SS
SS
.
.
µ
PD780133, 780134, 78F0134,
DD
DD
DD
DD
or EV
or EV
or EV
or EV
SS
SS
SS
SS
via a resistor.
via a resistor.
via a resistor.
via a resistor.
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