Pin Configuration (Top View) - NEC 78K0S/KA1+ User Manual

1.4 Pin Configuration (Top View)

20-pin plastic SSOP
P31/TI010/TO00/INTP2
Note In the 78K0S/KA1+, V
connect V to a stabilized GND (= 0 V).
SS
ANI0 to ANI3: Analog input
AV : Analog reference voltage
REF
INTP0 to INTP3: External interrupt input
P20 to P23: Port 2
P30, P31, P34: Port 3
P40 to P45: Port 4
P121 to P123: Port 12
P130: Port 13
CHAPTER 1 OVERVIEW
Note
V 1
SS
P121/X1 2
P122/X2 3
P123 4
V 5
DD
RESET/P34 6
7
P30/TI000/INTP0 8
P40 9
P41/INTP3
10
functions alternately as the ground potential of the A/D converter. Be sure to
SS
User's Manual U16898EJ3V0UD
AV
20
REF
P20/ANI0
19
18 P21/ANI1
17 P22/ANI2
16 P23/ANI3
15 P130
14 P45
13 P44/RxD6
12 P43/TxD6/INTP1
11 P42/TOH1
RESET: Reset
RxD6: Receive data
TI000, TI010: Timer input
TO00, TOH1: Timer output
TxD6: Transmit data
V : Power supply
DD
V : Ground
SS
X1, X2: Crystal oscillator (X1 input clock)
17