參數(shù)資料
型號(hào)： HD66760
廠商： Hitachi,Ltd.
英文描述： 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors
中文描述： 104 × 80點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的256色
文件頁(yè)數(shù)： 75/105頁(yè)
文件大?。?/td> 653K
代理商： HD66760
HD66760
75
V1
VLREF regulator
SEG1 to SEG312
PS = "00" or
PS = "01"
COM1 to COM80
V2
LCD
Driver
V3
V4
V5
GND
*10
V
LREF
V
1REF
V
REG
Vci
V
LPS
1/2 Vci Voltage
Dividing
VLCD
Regulator
VLOUT
*5,8,9
(B characteristics)
1
μ
F
*5
(B characteristics)
VR
HD66760
R
R
R0
R
R
GND
GND
GND
V5OUT
V4OUT
V3OUT
V2OUT
V1OUT
Step-up
Circuit
*7
(B characteristics)
C6+
C6-
(
1
μ
F
*7
(B characteristics)
C5+
C5-
(
1
μ
F
*7
(B characteristics)
C4+
C4-
(
1
μ
F
*7
(B characteristics)
C3+
C3-
(
1
μ
F
*7
(B characteristics)
C2+
C2-
(
1
μ
F
*7
(B characteristics)
C1+
C1-
(
1
μ
F
*8,9
(B characteristics)
1
μ
F
(+)
GND
Notes: 1. The reference voltage input (Vci) must be adjusted so that the output voltage after boosting will not
exceed the absolute maximum rating for the liquid-crystal power supply voltage (16.5 V).
2. Vci is both a reference voltage and power supply for the step-up circuit; the sufficient current must be
obtained.
3. Polarized capacitors must be connected correctly.
4. Circuits for temperature compensation should be based on the sample circuits in figures 51 and 52.
5. Adjust the capacitance value of the stabilized capacitor after the LCD panel has been mounted.
6. The breakdown voltages of the capacitors connected to C3+/C3- and C6+/C6- should be three times or
higher than the Vci voltage.
7. The breakdown voltages of the capacitors connected to C1+/C1-, C2+/C2-, C4+/C4-, and C5+/C5-
should be equal to or higher than the Vci voltage.
8. The breakdown voltages of the capacitors connected to VLOUT and V1OUT through V5OUT should be
n times or higher than the Vci voltage (n: step-up magnification).
9. Determine the breakdown voltages of the capacitors used in 6 to 8 above by checking Vci voltage
fluctuation.
10. VLREF regulator is not used when PS = "00". VLREF regulator is used when PS = "01".
Figure 50 Internal Step-up Circuit for LCD Drive Voltage Generation
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