參數(shù)資料
型號(hào)： HCD66750BP
廠商： Hitachi,Ltd.
英文描述： 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
中文描述： 128 × 128點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器，四灰度函數(shù)
文件頁數(shù)： 15/96頁
文件大?。?/td> 2068K
代理商： HCD66750BP
HD66750/1
15
Table 2
Pin Functional
Description
(cont)
Signals
Number
of Pins
I/O
Connected
to
external
bleeder-resistor
Functions
V1OUT–
V5OUT
5
I or O
Used for output from the internal operational
amplifiers when they are used (OPOFF = GND); attach
a capacitor to stabilize the output. When the
amplifiers are not used (OPOFF = V
), V1 to V5
voltages can be supplied to these pins externally.
V
LCD
V
CC
, GND
OSC1,
OSC2
1
—
Power supply
Power supply for LCD drive. V
LCD
–
GND = 17 V max.
V
CC
: +1.8 V to +5.5 V; GND (logic): 0 V
For R-C oscillation using an external resistor, connect
an external resistor. For external clock supply, input
clock pulses to OSC1.
2
—
Power supply
2
I or O
Oscillation-
resistor or clock
Vci
1
I
Power supply
Inputs a reference voltage and supplies power to the
booster; generates the liquid crystal display drive
voltage from the operating voltage. The boosting
output voltage must not be larger than the absolute
maximum ratings.
Must be left disconnected when the booster is not
used.
VLOUT
1
O
V
pin/booster
capacitance
Potential difference between Vci and GND is two- to
seven-times-boosted and then output. Magnitude of
boost is selected by instruction.
C1+, C1–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
C2+, C2–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
C3+, C3–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
C4+, C4–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
C5+, C5–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
C6+, C6–
2
—
Booster
capacitance
External capacitance should be connected here for
boosting.
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. If
the amplifier is turned off (OPOFF = V
), V1 to V5
must be supplied to the V1OUT to V5OUT pins.
VccDUM
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.
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