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1 OVeRVieW
S1C17153 TeChniCal Manual
Seiko epson Corporation
1-5
(Rev. 1.0)
Pin Descriptions
1.3.2
note
: The pin names described in boldface type are default settings.
3.2.1 Pin Descriptions
Table 1.
Pad no.
name
i/O
Default
status
Function
10–41
SeG31–SeG0
O
O (Hi-Z)
LCD segment output pins
42–45
COM3–COM0
O
O (Hi-Z)
LCD common output pins
46
V
C3
–
–
LCD system power supply circuit output pin
47
V
C2
–
–
LCD system power supply circuit output pin
48
V
C1
–
–
LCD system power supply circuit output pin
49
CB
–
–
Voltage boost capacitor connecting pin for LCD system power supply circuit
50
Ca
–
–
Voltage boost capacitor connecting pin for LCD system power supply circuit
51
V
SS
–
–
GND pin
52
V
DD
–
–
Power supply pin (2.0 to 3.6 V)
53
V
D1
–
–
Internal logic system voltage regulator output pin
54
OSC1
I
I
OSC1A oscillation input pin
55
OSC2
O
O
OSC1A oscillation output pin
56
TeST
I I (Pull-down) Test input pin (Connect to V
SS
for normal operation.)
57
#ReSeT
I
I (Pull-up) Initial reset input pin
58
P00
I/O I (Pull-up) I/O port pin (with port input interrupt function)
SIN0 I
UART Ch.0 data input pin
59
P01
I/O I (Pull-up) I/O port pin (with port input interrupt function)
SOUT0 O
UART Ch.0 data output pin
60
P02
I/O I (Pull-up) I/O port pin (with port input interrupt function)
SCLK0 I
UART Ch.0 external clock input pin
FOUTA O
Clock output pin
1
P03
I/O I (Pull-up) I/O port pin (with port input interrupt function)
EXCL0 I
T16A2 Ch.0 external clock input pin
LFRO O
LCD frame signal output pin
2
P04
I/O I (Pull-up) I/O port pin (with port input interrupt function)
TOUTA0 O
T16A2 Ch.0 TOUT A signal output pin
CAPA0 I
T16A2 Ch.0 capture A trigger signal input pin
3
P05
I/O I (Pull-up) I/O port pin (with port input interrupt function)
TOUTB0 O
T16A2 Ch.0 TOUT B signal output pin
CAPB0 I
T16A2 Ch.0 capture B trigger signal input pin
#SPISS0 I
SPI Ch.0 slave select signal input pin
4
P06
I/O I (Pull-up) I/O port pin (with port input interrupt function)
BZ O
Buzzer output pin
SDI0 I
SPI Ch.0 data input pin
5
P07
I/O I (Pull-up) I/O port pin (with port input interrupt function)
#BZ O
Buzzer inverted output pin
SDO0 O
SPI Ch.0 data output pin
6
P10
I/O I (Pull-up) I/O port pin
FOUTB O
Clock output pin
SPICLK0 I/O
SPI Ch.0 clock input/output pin
7
–
O
O (H)
–
P11 I/O
I/O port pin
BZ O
Buzzer output pin
8
–
I
I (Pull-up) –
P12 I/O
I/O port pin
#BZ O
Buzzer inverted output pin
9
–
O
O (L)
–
P13 I/O
I/O port pin