
S1C63653 TECHNICAL MANUAL
EPSON
5
CHAPTER 1: OUTLINE
1.4 Pin Description
Table 1.4.1 Pin description
Pin name
VDD
VSS
VDDA
VSSA
VD1
VD2
VOSC
VC1–VC3
CA, CB
CC, CD
OSC1
OSC2
OSC3
OSC4
K00–K03
K10–K13
P00–P03
P10–P13
R00
R01
R02
R03
COM0–COM5
SEG0–SEG31
SEN0
SEN1
REF0
REF1
HUD
RFIN0
RFIN1
RFOUT
BZ
RESET
TEST
Function
Power (+) supply pin
Power (–) supply pin
Analog system power (+) supply pin (=VDD)
Analog system power (–) supply pin (=VSS)
Internal logic system regulated voltage output pin
1/2VDD 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
I/O port pins
Output port pin
Output port or TOUT output pin (selected by software)
Output port or FOUT output pin (selected by software)
LCD common output pin (1/3, 1/4, 1/5 or 1/6 duty is selectable by software)
LCD segment output pin
R/f converter Ch. 0 CR oscillation output pin
R/f converter Ch. 1 CR oscillation output pin
R/f converter Ch. 0 reference resistor CR oscillation output pin
R/f converter Ch. 1 reference resistor CR oscillation output pin
R/f converter AC-bias oscillation output pin for humidity sensor
R/f converter Ch. 0 CR oscillation input pin
R/f converter Ch. 1 CR oscillation input pin
R/f converter oscillation frequency output pin
Sound output pin
Initial reset input pin
Testing input pin
I/O
–
I
O
I
O
I
I/O
O
I
O
I
Pad No.
22, 51
29, 73
18
9
26
21
23
6~8
4, 5
19, 20
24
25
27
28
52~55
56~59
60~63
64~67
68
69
70
71
1~3, 48~50
74~89, 32~47
14
16
13
15
17
11
12
10
72
31
30