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CHAPTER 1 OVERVIEW
User’s Manual U16898EJ6V0UD
17
1.3 Pin Configuration (Top View)
20-pin plastic SSOP
VSSNote
P121/X1
P122/X2
P123
VDD
RESET/P34
P31/TI010/TO00/INTP2
P30/TI000/INTP0
P41/INTP3
18
17
16
20
19
15
14
13
12
11
AVREF
P20/ANI0
P21/ANI1
P22/ANI2
P23/ANI3
P130
P45
P44/RxD6
P43/TxD6/INTP1
P42/TOH1
1
2
3
4
5
6
7
8
9
10
P40
20-pin plastic SDIP
VSSNote
P121/X1
P122/X2
P123
VDD
RESET/P34
P31/TI010/TO00/INTP2
P30/TI000/INTP0
P41/INTP3
AVREF
P20/ANI0
P21/ANI1
P22/ANI2
P23/ANI3
P130
P45
P44/RxD6
P43/TxD6/INTP1
P42/TOH1
P40
18
17
16
20
19
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
Pin Name
ANI0 to ANI3:
Analog input
P130:
Port 13
AVREF:
Analog Power Supply,
RESET:
Reset
Analog Reference Voltage,
RxD6:
Receive data
Power Supply for P20 to P23
TI000, TI010:
Timer input
INTP0 to INTP3:
External interrupt input
TO00, TOH1:
Timer output
P20 to P23:
Port 2
TxD6:
Transmit data
P30, P31, P34:
Port 3
VDD:
Power supply
P40 to P45:
Port 4
VSS
Note:
Ground
P121 to P123:
Port 12
X1, X2:
Crystal oscillator (X1 input clock)
Note In the 78K0S/KA1+, VSS functions alternately as the ground potential of the A/D converter.
Be sure to
connect VSS to a stabilized GND (= 0 V).