LC75834 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LC75834 Datasheet PDF : 19 Pages
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LC75834E, 75834W, 75834JE
Pin Functions
Pin
S1/P1 to
S8/P8
S9 to S34
COM1
COM2
COM3
COM4
OSC
CE
CL
DI
INH
VLCD1
VLCD2
VDD
VLCD
VSS
Pin No.
LC75834E,
75834W
LC75834JE
Function
Active
I/O
Handling
when unused
1 to 8
1 to 8 Segment outputs for displaying the display data transferred by serial data
input. The pins S1/P1 to S8/P8 can be used as general-purpose output ports
—
O
9 to 34
9 to 30 when so set up by the control data.
Open
35
36
31
32
Common driver outputs.
37
38
33
34
The frame frequency fO is given by: fO = (fOSC/512) Hz.
—
O
Open
Oscillator connection
44
40
An oscillator circuit is formed by connecting an external resistor and capacitor —
I/O
VDD
to this pin.
46
42
Serial data transfer inputs. These CE: Chip enable
47
43
pins are connected to the control
CL: Synchronization clock
48
44
microprocessor.
DI: Transfer data
H
I
—
GND
Display off control input
•INH = low (VSS): Off
S1/P1 to S8/P8 = Low
(These pins are forcible set to the segment output port
45
41
function and fixed at the VSS level.)
S9 to S34 = Low (VSS),
COM1 to COM4 = Low (VSS)
•INH = high (VDD): On
Note that serial data transfers can be performed when the
L
I
GND
display is forced off by this pin.
Used to apply the LCD drive 2/3 bias voltage externally. This pin must be
41
37
connected to VLCD2 when 1/2 bias drive is used.
—
I
Open
Used to apply the LCD drive 1/3 bias voltage externally. This pin must be
42
38
connected to VLCD1 when 1/2 bias drive is used.
—
I
Open
39
35
Logic block power supply. Provide a voltage in the range 2.7 to 6.0 V.
—
—
—
40
36
LCD driver block power supply. Provide a voltage in the range 2.7 to 6.0 V.
—
—
—
43
39
Ground pin. Connect to ground.
—
—
—
Note: The LC75834JE do not have the S9, S18, S27, S34 output pins.
No. 5597-6/19
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