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參數(shù)資料
| 型號： | S-4544A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | LCD Controller-Driver With Built-in 8-Bit and Serial Interfaces(內(nèi)置8位和串行接口的LCD控制器-驅(qū)動器) |
| 中文描述： | LCD控制器與- 8內(nèi)置驅(qū)動器位和串行接口（內(nèi)置8位和串行接口的液晶顯示控制器-驅(qū)動器） |
| 文件頁數(shù)： | 6/39頁 |
| 文件大?。?/td> | 237K |
| 代理商： | S-4544A |
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LCD Controller-Driver
S-4544A
Seiko Instruments Inc.
5
4. LCD Drive Voltage Pins
Table 4 LCD Drive Voltage Pins
Pin No.
37
Pin Name
FNC2
Description
LCD power supply circuit operation control pin 2.
Connected to VDD or VSS only.
LCD power supply circuit operation control pin 1.
Connected to VDD or VSS only.
Boosting voltage output
2nd-step boosting capacitor negative connection
2nd-step boosting capacitor positive connection
1st-step boosting capacitor negative connection
1st-step boosting capacitor positive connection
LCD power supply voltage control
LCD drive bias voltage
Outputs LCD drive bias voltage when using a built-in LCD power supply circuit.
1/ 4 bias 1 / 5 bias 1 / 6.75 bias
V1
1 / 4
×
V5
1 / 5
×
V5
V2
2 / 4
×
V5
2 / 5
×
V5
V3
2 / 4
×
V5
3 / 5
×
V5
V4
3 / 4
×
V5
4 / 5
×
V5
Inputs LCD drive bias voltage when using an external LCD power supply
circuit.
VDD
≥
V1, V2, V3, V4
≥
V5, VSS
≥
V5
38
FNC1
42
46
49
50
51
57
59
VOUT
C2-
C2+
C1-
C1+
VCNT
V1
60
V2
61
V3
62
V4
63
V5
5. Driver Output Pins
Table 5 Driver Output Pins
Pin No.
84 to 211
66 to 81
213 to 228
229
82
Pin Name
SEG1 to SEG128 Segment drive output
Description
COM1 to COM32 Common drive output
COMICN1
COMICN2
Icon common drive output:
COMICN1 and COMICN2 output the same phase waveform.
6. Other Pins
Table 6
Pin No.
1 to 9
24, 27, 30
33, 36, 40,
41
43 to 45, 47,
48
52 to 54, 64,
65
83, 212, 230
11
21
22
23
55
56
Pin Name
Description
Dummy
Dummy:
Insulated from the inside of the IC.
TEST4
TEST0
TEST1
TEST2
TEST3
TEST5
1 / 6.75
×
V5
2 / 6.75
×
V5
4.75 / 6.75
×
V5
5.75 / 6.75
×
V5
IC delivery test.
Cannot be wired to the outside.
Open when in use.
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