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LC75829PEH-H View Datasheet(PDF) - ON Semiconductor

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LC75829PEH-H Datasheet PDF : 22 Pages
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LC75829PE, 75829PW
Pin Functions
Handling
Symbol
Pin No.
Function
Active I/O
when
unused
Segment outputs for displaying the display data transferred by serial data input.
S1/P1 to S4/P4
1 to 4
The S1/P1 to S4/P4 pins can be used as general-purpose output ports under serial
S5 to S50
5 to 50
-
data control.
S52
55
O
OPEN
Common driver outputs
COM1 to COM3 54 to 52
The frame frequency is fo[Hz].
-
COM4/S51
51
The COM4/S51 pin can be used as a segment output in 1/3 duty.
S53/OSCI
Segment output. This pin can also be used as the external clock input pin when the
60
-
external clock operating mode is selected by control data.
CE
62
Serial data transfer inputs. Must be connected to the controller.
H
CE: Chip enable
CL
63
CL: Synchronization clock
DI
64
DI: Transfer data
-
Display off control input
• INH = low (VSS) ...Display forced off
S1/P1 to S4/P4 = low (VSS)
(These pins are forcibly set to the general-purpose output port
INH
61
function and held at the VSS level.)
S9 to S50, S52=low (VSS)
COM1 to COM3=low (VSS)
COM4/S51=low (VSS)
S53/OSCI=low (VSS)
(This pin is forcibly set to the segment output port function and
L
held at the VSS level.)
Stops the internal oscillator.
Inhibits external clock input.
• INH = high (VDD)...Display on
Enables the internal oscillator circuit.
(Internal oscillator operating mode)
Enables external clock input.
(External clock operating mode)
However, serial data transfer is possible when the display is forced off.
VDD1
57
Used to apply the LCD drive 2/3 bias voltage externally.
-
VDD2
58
Used to apply the LCD drive 1/3 bias voltage externally.
-
VDD
56
Power supply pin. A power voltage of 4.5 to 6.0V must be applied to this pin.
-
VSS
59
Ground pin. Must be connected to ground.
-
O
OPEN
I/O
OPEN
I
I
GND
I
I
GND
I
OPEN
I
OPEN
-
-
-
-
No.A1462-7/22
 

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