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TOUCH CONTROL / DESCRIPTION OF LSI
Pin No.
Signal
44
P24
45
P23
46-48
P22-P20
IN/OUT
49-50
P17-P16
IN/OUT
51
SEG39
60
SEG30
61
SEG29
90
SEG 0
91
VCC
92
VREF
93
AVSS
94
COM3
95
COM2
96
COM1
97
COM0
98-99
VL3-VL2
100
C2
I/O
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P74 - P77
terminal while one of G3 and G8 line keys on matrix is touched.
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P74 - P77 terminal
while one of G1 line keys on matrix is touched.
Terminal not used.
Terminal not used.
OUT
Terminal not used.
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
SEG 0 (90) ................................ 1
SEG 1 (89) ................................ 2
SEG 2 (88) ................................ 3
SEG 3 (87) ................................ 4
SEG 4 (86) ................................ 5
SEG 5 (85) ................................ 6
SEG 6 (84) ................................ 7
SEG 7 (83) ................................ 8
SEG 8 (82) ................................ 9
SEG 9 (81) .............................. 10
SEG10 (80) ............................. 34
SEG11 (79) ............................. 33
SEG12 (78) ............................. 32
SEG13 (77) ............................. 31
SEG14 (76) ............................. 30
IN
Connected to GND.
IN
Connected to GND.
IN
Connected to VC.
OUT
Common data signal: COM3.
Connected to LCD (Pin No. 21).
OUT
Common data signal: COM2.
Connected to LCD (Pin No. 20).
OUT
Common data signal: COM1.
Connected to LCD (Pin No. 19).
OUT
Common data signal: COM0.
Connected to LCD (Pin No. 18).
IN
Power source voltage input terminal.
Standard voltage for LCD.
IN
Terminal not used.
771M -
Description
LCD (Pin No.)
LSI signal (Pin No.) LCD (Pin No.)
SEG15 (75) ........................... 29
SEG16 (74) ........................... 28
SEG17 (73) ........................... 27
SEG18 (72) ........................... 26
SEG19 (71) ........................... 25
SEG20 (70) ........................... 24
SEG21 (69) ........................... 11
SEG22 (68) ........................... 23
SEG23 (67) ........................... 22
SEG24 (66) ........................... 12
SEG25 (65) ........................... 13
SEG26 (64) ........................... 14
SEG27 (63) ........................... 15
SEG28 (62) ........................... 16
SEG29 (61) ........................... 17
12
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