4
EPSON
S1C63666 TECHNICAL MANUAL
CHAPTER 1: OUTLINE
1.4 Pin Description
Table 1.4.1 Pin description
Pin name
V
DD
V
SS
V
DDA
V
SSA
V
D1
V
D2
V
OSC
V
C1
–V
C3
CA, CB
CC, CD
OSC1
OSC2
OSC3
OSC4
K00–K03
K10–K13
P00
P01
P02
P03
P10–P13
R00
R01
R02
R03
R10–R13
COM0–COM7
SEG0–SEG63
SEN0
SEN1
REF
RFIN
RFOUT
CMPP0
CMPM0
BZ
BZ
SVD
RESET
TEST
Function
Power (+) supply pin
Power (–) supply pin
Analog system power (+) supply pin (=V
DD
)
Analog system power (–) supply pin (=V
SS
)
Internal logic system regulated voltage output pin
1/2V
DD
voltage halver output pin
Oscillation system regulated voltage output pin
LCD system power supply pin
LCD system voltage booster capacitor connecting pin
Voltage halver capacitor connecting pin
Crystal oscillation input pin
Crystal oscillation output pin
Ceramic or CR oscillation input pin (selected by mask option)
Ceramic or CR oscillation output pin (selected by mask option)
Input port pins
Input port pins
I/O port or serial I/F data input pin (selected by software)
I/O port or serial I/F data output pin (selected by software)
I/O port or serial I/F clock I/O pin (selected by software)
I/O port or serial I/F ready signal output pin (selected by software)
I/O port pins
Output port pin
Output port pin
Output port or TOUT output pin (selected by software)
Output port or FOUT output pin (selected by software)
Output port pins
LCD common output pin (1/4, 1/5 or 1/8 duty is selectable by software)
LCD segment output pin
R/f converter sensor 0 CR oscillation output pin
R/f converter sensor 1 CR oscillation output pin
R/f converter reference resistor CR oscillation output pin
R/f converter CR oscillation input pin
R/f converter oscillation frequency output pin
Analog comparator non-inverted input pin
Analog comparator inverted input pin
Sound output pin
Sound inverted output pin
SVD external voltage input pin
Initial reset input pin
Testing input pin
I/O
–
–
–
–
–
–
–
–
–
–
I
O
I
O
I
I
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
I
O
I
I
O
O
I
I
I
Pin No.
24
31
20
14
28
23
25
8–10
6, 7
21, 22
26
27
29
30
81–84
85–88
89
90
91
92
93–96
97
98
99
100
101–104
2–5, 76–79
110–141, 38–69
18
19
17
16
15
11
12
105
106
13
33
32