20
32
VSS
IN
Power source voltage: -5.0V.
VC voltage of power source circuit input.
33
P27
OUT
Terminal not used.
34
P26
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G7 line keys on key matrix is touched.
35
P25
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G6 line keys on key matrix is touched.
36
P24
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G5 line keys on key matrix is touched.
37
P23
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G4 line keys on key matrix is touched.
38
P22
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G3 line keys on key matrix is touched.
39
P21
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G2 line keys on key matrix is touched.
40
P20
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one
of G1 line keys on key matrix is touched.
41-50
P17-P08
OUT
Terminal not used.
51-72
SEG21-SEG0
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
LCD (Pin No.)
LSI signal (Pin No.)
LCD (Pin No.)
SEG 21 (51) ........................ SEG21 (26)
SEG 10 (62) ....................... SEG10 (15)
SEG 20 (52) ........................ SEG20 (25)
SEG 9 (63) ........................ SEG 9 (14)
SEG 19 (53) ........................ SEG19 (24)
SEG 8 (64) ........................ SEG 8 (13)
SEG 18 (54) ........................ SEG18 (23)
SEG 7 (65) ........................ SEG 7 (12)
SEG 17 (55) ........................ SEG17 (22)
SEG 6 (66) ........................ SEG 6 (11)
SEG 16 (56) ........................ SEG16 (21)
SEG 5 (67) ........................ SEG 5 (10)
SEG 15 (57) ........................ SEG15 (20)
SEG 4 (68) ......................... SEG 4 ( 9)
SEG 14 (58) ........................ SEG14 (19)
SEG 3 (69) ......................... SEG 3 ( 8)
SEG 13 (59) ........................ SEG13 (18)
SEG 2 (70) ......................... SEG 2 ( 7)
SEG 12 (60) ........................ SEG12 (17)
SEG 1 (71) ......................... SEG 1 ( 6)
SEG 11 (61) ........................ SEG11 (16)
SEG 0 (72) ......................... SEG 0 ( 5)
73/74
VCC/VREF
IN
Connected to GND.
75
AVSS
IN
Connected to VC.
76
COM3
OUT
Terminal not used.
77
COM2
OUT
Common data signal: COM2.
Connected to LCD signal COM2.
78
COM1
OUT
Common data signal: COM1.
Connected to LCD signal COM1.
79
COM0
OUT
Common data signal: COM0.
Connected to LCD signal COM0.
80
VL3
IN
Power source voltage input terminal.
Standard voltage for LCD.
Pin No.
Signal
I/O
Description
