LC75878W 查看數據表（PDF） - SANYO -> Panasonic
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LC75878W Datasheet PDF : 33 Pages
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LC75878E, 75878W
Pin Functions
Pin
S1 to S73
S74/COM10
S75/COM9
COM1 to COM8
P1 to P4
Pin No.
LC75878E LC75878W
3 to 75
76
77
1 to 73
74
75
85 to 78
83 to 76
86 to 89
84 to 87
Function
Segment driver outputs.
The S74/COM10 and S75/COM9 pins can be used as common
driver outputs under the control data.
Common driver outputs.
General-purpose output ports.
OSC
98
Oscillator connection.
96
An oscillator circuit is formed by connecting an external resistor and
capacitor at this pin.
Active
—
—
—
—
CE
100
98
Serial data transfer inputs.
H
These pins are connected to the microcontroller.
CL
1
99
CE :Chip enable
v
CL :Synchronization clock
DI
2
100
DI :Transfer data
—
INH
99
Input that turns the display off and forces the general-purpose output
ports low.
• When INH is low (VSS)
• Display off
S1 to S73 = “L” (VLCD4).
S74/COM10, S75/COM9 = “L” (VLCD4)
COM1 to COM8 = “L” (VLCD4).
97
• General-purpose output ports P1 to P4 = low (VSS)
L
• When INH is high (VDD)
• Display on
• The states of the general-purpose output ports can be set by
the PC1 to PC4 control data.
However, serial data can be transferred when the INH pin is low.
VLCD0
92
LCD drive 4/4 bias voltage (high level) supply pin. The level on this pin
can be changed by the display contrast adjustment circuit.
90
However, (VLCD0 – VLCD4) must be greater than or equal to 4.5 V.
—
Also,external power must not be applied to this pin since the pin circuit
includes the display contrast adjustment circuit.
VLCD1
93
LCD drive 3/4 bias voltage (middle level) supply pin. This pin can be
91
used to supply the 3/4 (VLCD0 – VLCD4) voltage level externally.
—
VLCD2
94
VLCD3
95
LCD drive 2/4 bias voltage (middle level) supply pin. This pin can be
92
used to supply the 2/4 (VLCD0 – VLCD4) voltage level externally.
—
LCD drive 1/4 bias voltage (middle level) supply pin. This pin can be
93
used to supply the 1/4 (VLCD0 – VLCD4) voltage level externally.
—
VLCD4
96
VDD
90
VLCD
91
VSS
97
LCD drive 0/4 bias voltage (low level) supply pin. Fine adjustment of the
display contrast can be implemented by connecting an external variable
94
resistor to this pin.
—
However, (VLCD0 – VLCD4) must be greater than or equal to 4.5 V, and
VLCD4 must be in the range 0 V to 1.5 V, inclusive.
Logic block power supply connection. Provide a voltage of between 2.7
88
and 6.0V.
—
LCD driver block power supply connection. Provide a voltage of between
89
7.0 and 11.0 V when the display contrast adjustment circuit is used and
—
provide a voltage of between 4.5 and 11.0 V when the circuit is not used.
95
Power supply connection. Connect to ground.
—
I/O
Handling
when unused
q
Open
q
Open
q
Open
I/O
VDD
I
I
GND
I
I
GND
O
Open
I
Open
I
Open
I
Open
I
GND
—
—
—
—
—
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No. 6473 -7/39
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