38
CHAPTER 2 PIN FUNCTION
2.3 Input/output Circuits and Recommended Connection of Unused Pins
Table 2-1 shows the input/output circuit types of pins and the recommended connection for unused pins.
Refer to Figure 2-1 for the configuration of the input/output circuit of each type.
Table 2-1. Pin Input/Output Circuit Types
Pin Name
Input/Output Circuit Type
Input/Output
Recommended Connection of Unused Pins
P00/INTP0
8-A
Input/output
Independently connect to V
SS
via a resistor.
P01/INTP1
P02/INTP2
P03 to P07
P10/ANI0 to P14/ANI4
9
Input
Independently connect to V
DD
or V
SS
via a resistor.
P20/SM11 to P23/SM14
4
Output
Leave open.
P24/SM21 to P27/SM24
P30/SM31 to P33/SM34
P34/SM41 to P37/SM44
P40/TI00 to P42/TI02
8
Input/output
Independently connect to V
DD
or V
SS
via a resistor.
P43/TIO2
P44/TIO3
P50/SCK
P51/SO
5
P52/SI
8
P53/RxD
P54/TxD
5
P60/SGOA/PCL
P61/SGO/SGOF
P81/S19/TPO
17-G
P82/S18 to P87/S13
P90/S12 to P97/S5
S0 to S4
17
Output
Leave open.
COM0 to COM3
18
V
LCD
—
—
RESET
2
Input
—
SMV
DD
—
—
Connect to V
DD
.
SMV
SS
Connect to V
SS
.
AV
REF
AV
SS
V
PP
(
µ
PD78F0974)
IC (
µ
PD780973(A))
Connect directly to V
SS
.
Содержание mPD780973 Series
Страница 2: ...2 MEMO ...
Страница 66: ...66 MEMO ...
Страница 98: ...98 MEMO ...
Страница 138: ...138 MEMO ...
Страница 164: ...164 MEMO ...
Страница 182: ...182 MEMO ...
Страница 204: ...204 MEMO ...
Страница 244: ...244 MEMO ...
Страница 262: ...262 MEMO ...
Страница 278: ...278 MEMO ...
Страница 290: ...290 MEMO ...