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參數(shù)資料
| 型號： | 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點圖形LCD控制器/驅(qū)動器的256色 |
| 文件頁數(shù)： | 10/105頁 |
| 文件大小： | 653K |
| 代理商： | HD66760 |
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HD66760
10
Table 1 Pin Functional Description (cont)
Signals
Number of
Pins
I/O
Connected to
Functions
C3+, C3–
2
—
Step-up
capacitance
External capacitance should be connected here for
step-up.
C4+, C4–
2
—
Step-up
capacitance
External capacitance should be connected here for
step-up.
C5+, C5–
2
—
Step-up
capacitance
External capacitance should be connected here for
step-up.
C6+, C6–
2
—
Step-up
capacitance
External capacitance should be connected here for
step-up.
RESET*
1
I
MPU or external
R-C circuit
Reset pin. Initializes the LSI when low. Must be reset
after power-on.
OPOFF
1
I
V
CC
or GND
Turns the internal operational amplifier off when
OPOFF = V
, and turns it on when OPOFF = GND.
When internal amplifier is not used, supply V1 to V5
voltage level to the V1OUT to V5OUT pins.
VSW1,
VSW2
2
I
GND
Test pins. Must be VSW1, VSW2 = GND.
VREG
1
I
Input pin
This pin is used when the reference voltage of the
internal power-supply regulator is externally supplied.
When the internal reference voltage (1/2 Vci) is used,
VREG must be opened since the 1/2-Vci level is
output.
VLREF
1
I
Input pin
Use this pin when the LCD drive voltage is externally
supplied. When the internal power-supply regulator
is used, short VLREF with the V1REF pin.
V1REF
1
O
Output pin
Outputs the LCD drive voltage generated in the
internal power-supply regulator. Insert this pin when
the external temperature-compensation circuit is
used between V1REF and VLREF. If the circuit is
not used, short V1REF and VLREF.
V
CC
DUM
2
O
Input pins
Outputs the internal V
level; shorting this pin sets
the adjacent input pin to the V
CC
level.
Outputs the internal GND level; shorting this pin sets
the adjacent input pin to the GND level.
GNDDUM
4
O
Input pins
Dummy
4
—
—
Dummy pad. Must be left disconnected.
TEST
1
I
GND
Test pin. Must be fixed at GND level.
VTEST
1
—
—
Test pin. Must be left disconnected.
VL1REF
1
O
—
Test pin. Must be left disconnected.
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