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CHAPTER 1: OUTLINE
1.4 Pin Description
Pin name
Pin No.
V
DD
V
SS
V
D1
V
–V
36–34
C1
C3
CA, CB
33, 32
OSC1
OSC2
OSC3
OSC4
K00–K03
85–88
K10–K13
89–92
K20
P00–P03
71–68
P10–P13
67–64
P20–P23
63–60
P30–P33
59–56
P40–P43
55–52
R00
R01
R02
R03
R10–R13
79–76
R20–R23
75–72
COM0–COM3
28–31
SEG0–SEG31
94–100, 1–25
AV
DD
AV
SS
AV
REF
BZ
RESET
TEST
4
Table 1.4.1 Pin description
In/Out
43
–
Power (+) supply pin
37
–
Power (–) supply pin
40
–
Oscillation/internal logic system regulated voltage output pin
–
LCD system power supply pin 1/3 or 1/2 bias (selected by mask option)
–
LCD system boosting/reducing capacitor connecting pin
38
I
Crystal or CR oscillation input pin (selected by mask option)
39
O
Crystal or CR oscillation output pin (selected by mask option)
41
I
Ceramic or CR oscillation input pin (selected by mask option)
42
O
Ceramic or CR oscillation output pin (selected by mask option)
I
Input port
I
Input port
93
I
Input port with control
I/O
I/O port
I/O
I/O port (switching to serial I/F input/output is possible by software)
I/O
I/O port
I/O
I/O port
I/O
I/O port (can be used as A/D input)
83
O
Output port
82
O
Output port
81
O
Output port (switching to TOUT output is possible by software)
80
O
Output port (switching to FOUT output is possible by software)
O
Output port
O
Output port
O
LCD common output pin (1/4, 1/3, 1/2 duty can be selected by software)
O
LCD segment output pin
47
–
Power (+) supply pin for A/D converter
48
–
Power (–) supply pin for A/D converter
46
–
Reference voltage for A/D converter
84
O
Buzzer output pin
44
I
Initial reset input pin
45
I
Testing input pin
Function
EPSON
S1C63358 TECHNICAL MANUAL
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