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參數(shù)資料
| 型號(hào)： | S1C6N3B0D0A0100 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROCONTROLLER, UUC54 |
| 封裝： | DIE-54 |
| 文件頁(yè)數(shù)： | 32/79頁(yè) |
| 文件大?。?/td> | 606K |
| 代理商： | S1C6N3B0D0A0100 |
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30
EPSON
S1C6N3B0 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIARCUITS AND OPERATION (LCD Driver)
4.6 LCD Driver
4.6.1 Configuration of LCD driver
The S1C6N3B0 Series has four common terminals (COM0–COM3) and 26 segment terminals (SEG0–
SEG25), so that an LCD with a maximum of 104 (26
× 4) segments can be driven.
When using the QFP12-48pin package, only 18 segment terminals (SEG0–4, 6, 8–19) are available and up
to 72 (18
× 4) segments can be driven.
The driving method is 1/4 duty (1/3 or 1/2 duty can also be selected by mask option) dynamic drive,
adopting the four types of potential, VSS, VC1, VC2 and VC3.
The power for driving the LCD is generated by the internal circuit so that there is no need to apply power
especially from outside.
The LCD drive voltage can also be supplied from outside by selecting mask option (VDD = VC1, VDD =
VC2 or VDD = VC3).
When using the internal LCD drive voltage (VC1 to VC3), the LCD power supply circuit goes off in the
SLEEP mode (S1C6A3B0 and the CR oscillator model of the S1C6N3B0) and VC1 to VC3 voltages go to VSS
level.
Note: When the LCD drive voltage is supplied externally, the SLEEP function cannot be used.
VSS
VC1
VC2
VC3
CA
CB
VDD
(1) When the internal voltage regulator is selected as the LCD power supply:
VSS
VC1
VC2
VC3
CA
CB
VDD
(2) When an external LCD power supply is selected:
(2-1) VDD=VC1 (4.5 V panel)
(VC1 is shorted with VDD
inside of the IC.)
VSS
VC1
VC2
VC3
CA
CB
VDD
(2-2) VDD=VC2 (4.5 V panel)
(VC2 is shorted with VDD
inside of the IC.)
VSS
VC1
VC2
VC3
CA
CB
VDD
(2-3) VDD=VC3 (3 V panel)
(VC3 is shorted with VDD
inside of the IC.)
C3
C4
C5
C1
C4
C5
C1
C3
C5
C1
C3
C4
C1
1.5 V
3 V
Fig. 4.6.1.1 External connection diagram
The frame frequency is set as shown in Table 4.6.1.1 according to the oscillation frequency.
Table 4.6.1.1 Frame frequency
Oscillation frequency
32.768 kHz (crystal)
65 kHz (CR)
250 kHz–500 kHz (CR)
400 kHz–1 MHz (ceramic)
Model
S1C6N3B0
S1C6A3B0
1/4 duty
fosc/1024=32
fosc/1024
≈64
fOSC/6144
fOSC/12288
FR frequency (Hz)
1/2 duty
fosc/1024=32
fosc/1024
≈64
fOSC/6144
fOSC/12288
1/3 duty
fosc/768=42.7
fosc/768
≈85
fOSC/4608
fOSC/9216
Oscillation frequency
fOSC:
Figures 4.6.1.2 to 4.6.1.4 show the drive waveform for 1/4 duty, 1/3 duty and 1/2 duty.
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