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80 SEGMENT DRIVER FOR DOT MATRIX LCD S6A2067
INTRODUCTION
The S6A2067 is a LCD driver lC which is fabricated by low power CMOS technology. Basically this lC consists of
40 x 2 bit bi-directional shift register, 40 x 2 bit data latch and 40 x 2 bit LCD driver (refer to Figure 1). This lC
can be used as segment driver.
FUNCTION
• Dot matrix LCD driver with 80 channel output.
• Input / Output signal
- Output: 40 x 2 channel waveform for LCD driving
- Input: Serial display data and control signal pulse from the controller lC.
Bias voltage (V1 to V4)
FEATURES
• Display driving bias: static ~ 1/5
• Power supply voltage: 2.7V to 5.5V
• Supply voltage for display: 3.0V to 13.0V (V
• Interface
Driver (cascade connection)
S6A0065, Other S6A2067
• CMOS Process
• 100QFP or bare chip available
= VDD - VEE)
LCD
Controller
S6A0069
S6A0070
S6A0073
1
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S6A2067 80 SEGMENT DRIVER FOR DOT MATRIX LCD
BLOCK DIAGRAM
V1
V2
V3
V4
CL1
CL2
Part 1
LCD DRIVER
Data Latch (40 bits)
Bidirectional
Shift Register (40 bits)
M
SW
Contr
Logic
DL1 SHL1 DR1 DL2 SHL2 DR2
S40S39S2S1
Shift Register (40 bits)
Part 2
S80S79S42S41
LCD DRIVER
Data Latch (40 bits)
Bidirectional
VDD
VSS
VEE
Figure 1. S6A2067 Functional Block Diagram
2
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80 SEGMENT DRIVER FOR DOT MATRIX LCD S6A2067
S30S29S28S27S26S25S24S23S22S21S20S19S18S17S16S15S14S13S12S11S
PIN CONFIGURATION
S70S69S68S67S66S65S64S63S62S61S60S59S58S57S56S55S54S53S52S51S50S49S48S47S46S45S44S43S42S
8079787776757473727170696867666564636261605958575655545352
S
71
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
81
72
82
73
83
74
84
75
85
76
86
77
87
78
88
79
89
80
90
40
91
39
92
38
93
37
94
95
36
35
96
34
97
33
98
32
99
31
100
S6A2067
1234567891011121314151617181920212223242526272829
10
41
51
30
1
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
NC
NC
M
DR
DL
DR
DL
CL
V
DD
NC
NC
SHL
SHL
CL
GND
V
4
V
3
V
2
V
1
V
EE
2
2
1
1
2
2
1
1
Figure 2. 100 QFP Top View
3