2 PINS AND PACKAGE
2-4
Seiko Epson Corporation
S1C6F016 TECHNICAL MANUAL
Pin Description
2.2
2.1 Pin description
Figure 2.
Pin name
Pin/pad No.
I/O OP SFT
Function
Default
Shared
function
QFP
Chip
VDD
58, 93
54, 90
–
– Power (+) supply pins
VSS
54, 63, 80
50, 60, 77
–
– Power (-) supply pins
VD1
57
53
–
– Internal logic voltage regulator output pin
VC1–VC3
50–48
47–45
–
– LCD system power supply pins
CA, CB
47, 46
44, 43
–
– LCD system voltage boost/reduce capacitor connecting pins
OSC1
52
48
I
–
– Crystal oscillation input pin
OSC2
53
49
O
–
– Crystal oscillation output pin
OSC3
55
51
I
OP
– Ceramic oscillation input pin
I
OP
– CR oscillation (external R) input pin
–
OP
– CR oscillation (built-in R) input pin (Leave the pin open.)
OSC4
56
52
O OP
– Ceramic oscillation output pin
O OP
– CR oscillation (external R) output pin
–
OP
– CR oscillation (built-in R) output pin (Leave the pin open.)
RESET
62
59
I
–
– Initial reset input pin
TEST
61
58
I
–
– Test pin (Connect to VSS during normal operation.)
TEST1
–
55
I/o
–
– Flash EEPROM test pin (Leave the pin open.)
TEST2
59
56
I/o
–
– Flash EEPROM test pin (Connect to VDD during normal
operation.)
TEST3
60
57
I/o
–
– Flash EEPROM test pin (Leave the pin open.)
DMOD
64
61
I
–
– Flash programming control pin
DCLK
65
62
I
–
– Clock input pin for Flash programming
DRXD
66
63
I
–
– Serial data input pin for Flash programming
DTXD
67
64
O
–
– Serial data output pin for Flash programming
COM0–COM7
42–35
O
–
– LCD common output pins
SEG0–SEG35
34–1, 100, 99 34–1, 96, 95
O
–
– LCD segment output pins
HUD
HUD
76
73
O OP
– R/F converter CR oscillation output pin for AC bias sensor
SEG55
O OP
– LCD segment output pin
SEN1
SEN1
77
74
O OP
– R/F converter Ch.1 CR oscillation output pin for DC bias
sensor
SEG54
O OP
– LCD segment output pin
REF1
REF1
78
75
O OP
– R/F converter Ch.1 CR oscillation output pin for reference
resistor
SEG53
O OP
– LCD segment output pin
RFIN1
RFIN1
79
76
I
OP
– R/F converter Ch.1 CR oscillation input pin
SEG52
O OP
– LCD segment output pin
P53
P53
81
78
I/o OP
D I/O port pin
RFIN0
I
SFT R/F converter Ch.0 CR oscillation input pin
SEG51
O OP
– LCD segment output pin
P52
P52
82
79
I/o OP
D I/O port pin
REF0
O
SFT R/F converter Ch.0 CR oscillation output pin for reference
resistor
SEG50
O OP
– LCD segment output pin
P51
P51
83
80
I/o OP
D I/O port pin
SEN0
O
SFT R/F converter Ch.0 CR oscillation output pin for DC bias
sensor
SEG49
O OP
– LCD segment output pin
P50
P50
84
81
I/o OP
D I/O port pin
RFOUT
O
SFT R/F converter CR oscillation clock output pin
SEG48
O OP
– LCD segment output pin
P00
P00
71
68
I/o
–
D I/O port pin
KRST00
I
OP
– Key reset input pin
KEY00
I
–
SFT Port interrupt input pin
RUN_STP
I
–
SFT Stopwatch direct RUN/STOP input pin
(Can be switched to LAP input.)
P01
P01
70
67
I/o
–
D I/O port pin
KRST01
I
OP
– Key reset input pin
KEY01
I
–
SFT Port interrupt input pin
LAP
I
–
SFT Stopwatch direct LAP input pin
(Can be switched to RUN/STOP input.)
P02
P02
69
66
I/o
–
D I/O port pin
KRST02
I
OP
– Key reset input pin
KEY02
I
–
SFT Port interrupt input pin
P03
P03
68
65
I/o
–
D I/O port pin
KRST03
I
OP
– Key reset input pin
KEY03
I
–
SFT Port interrupt input pin