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LC75874 View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
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LC75874 Datasheet PDF : 16 Pages
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LC75874E, 75874W
Pin Functions
Symbol
S1/P1 to S8/P8
S9 to S66
Pin No.
LC75874E LC75874W
Function
1 to 8
9 to 66
79, 80, Segments outputs for displaying the display data transferred by serial data
1 to 6 input. The S1/P1 to S8/P8 pins can be used as general-purpose output
7 to 64 ports under serial data control.
COM1
COM2
COM3
COM4
67
65
68
66
69
67 Common driver outputs. The frame frequency fo is fOSC/512 Hz.
70
68
OSC
76
74
Oscillator connection. An oscillator circuit can be formed by connecting an
external resistor and capacitor at this pin.
CE
CL
DI
INH
VLCD1
78
76 Serial data transfer inputs. Connected to the controller.
79
77 CE: Chip enable
CL: Synchronization clock
80
78 DI: Transfer data
Display off control input
INH = low (VSS) ......Display forced off
S1/P1 to S8/P8 = low (VSS)
(These pins are forcibly set to the segment output port
77
75
function and held at the VSS level.)
S9 to S66 = low (VSS)
COM1 to COM4 = low (VSS)
INH = high (VDD).....Display on
However, serial data transfer is possible when the display is forced off by
this pin.
Used to apply the LCD drive 2/3 bias voltage externally. Connect this pin to
73
71 VLCD2 when using a 1/2-bias drive scheme.
VLCD2
VDD
VLCD
VSS
Used to apply the LCD drive 1/3 bias voltage externally. Connect this pin to
74
72 VLCD1 when using a 1/2-bias drive scheme.
71
69 Logic block power supply. In the range 2.7 to 6.0 V.
72
70 LCD driver block power supply. In the range 2.7 to 6.0 V.
75
73 Ground pin. Connect to ground.
Pin Assignments
Active
Handling
I/O when unused
O
Open
O
Open
I/O
VDD
H
I
I
GND
I
L
I
GND
I
Open
I
Open
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No. 4465No. 5800-5/16
 

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