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IC DESCRIPTION-4/4 (TMP87CM24)-2/2
QQ
3 7 63 1515 0
Pin No.
Pin Name
45
P55
46
P56
47
P57
48
VAREF
49
VASS
50
VSS2
51
VDDÇP
52
CLKSETTING
53-59
P81-P87
60-67
P70-P77
68-75
P60-P67
76-79
P90-P93
80-91
S11-S0
92-95
COM3-COM0
96
V3
97
V2
98
C1
99
C0
100
VDD2
TE
L 13942296513
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I/O
I
Key matrix signal input.
I
Key matrix signal input.
I
Key matrix signal input.
—
Analog reference voltage inputs(High)
—
Analog reference voltage inputs(Low)
—
Ground
—
Power supply
O
LCD segment outputs. (Connected to power supply.)
O
LCD segment outputs. (Not connected.)
O
LCD segment outputs. (Not connected.)
O
LCD segment outputs.
O
LCD segment outputs.
O
LCD segment outputs.
O
LCD common otput.
O
LCD voltage booster pin. Capacitors are required between V3 pin and Ground.
O
LCD voltage booster pin. Capacitors are required between V2 pin and Ground.
O
LCD voltage booster pin. Capacitors are required between C0 and C1 pin and Ground.
O
LCD voltage booster pin. Capacitors are required between C0 and C1 pin and Ground.
—
Power supply
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2 9
8
Description
Q Q
3
6 7
1 3
1 5
co
.
-31-
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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