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UPD780138 Datasheet(PDF) 45 Page - NEC

No. de Pieza. UPD780138
Descripción  8-Bit Single-Chip Microcontrollers
Descarga  558 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD780138 Datasheet(HTML) 45 Page - NEC

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CHAPTER 2 PIN FUNCTIONS
User’s Manual U16228EJ2V0UD
45
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins
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.
Table 2-2. Pin I/O Circuit Types
Pin Name
I/O Circuit Type
I/O
Recommended Connection of Unused Pins
P00/TI000
P01/TI010/TO00
P02/SO11
Note
P03/SI11
Note
P04/SCK11
Note
P05/SSI11
Note/TI001Note
P06/TI011
Note/TO01Note
P10/SCK10/TxD0
P11/SI10/RxD0
8-A
P12/SO10
P13/TxD6
5-A
P14/RxD6
8-A
P15/TOH0
5-A
P16/TOH1/INTP5
P17/TI50/TO50
8-A
I/O
Input:
Independently connect to EVDD or EVSS via a resistor.
Output: Leave open.
P20/ANI0 to P27/ANI7
9-C
Input
Connect to EVDD or EVSS.
P30/INTP1 to P32/INTP3
P33/TI51/TO51/INTP4
8-A
P40 to P43
P50 to P53
5-A
Input:
Independently connect to EVDD or EVSS via a resistor.
Output: Leave open.
P60, P61 (Mask ROM version)
13-S
P60, P61 (Flash memory version)
13-R
P62, P63 (Mask ROM version)
13-V
P62, P63 (Flash memory version)
13-W
Input:
Connect to EVSS.
Output: Leave this pin open at low-level output after clearing
the output latch of the port to 0.
P70/KR0 to P77/KR7
P120/INTP0
8-A
I/O
Input:
Independently connect to EVDD or EVSS via a resistor.
Output: Leave open.
P130
3-C
Output
Leave open.
P140/PCL/INTP6
P141/BUZ/INTP7
8-A
I/O
Input:
Independently connect to EVDD or EVSS via a resistor.
Output: Leave open.
Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the
µPD780133, 780134, 78F0134,
780136, 780138, and 78F0138.


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