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PDF LC75841PE Datasheet ( Hoja de datos )

Número de pieza LC75841PE
Descripción 1/2-Duty Drive General-Purpose LCD Display Driver
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LC75841PE datasheet

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LC75841PE pdf
Package Dimensions
unit:mm (typ)
3162C
9.0
7.0
27 19
28 18
LC75841PE
36
1
(0.9)
0.65
10
9
0.3
0.15
SANYO : QFP36(7X7)
Pin Assignment
OSC
VDD
INH
VSS
CE
CL
DI
COM2
COM1
28
29
30
31
32
33
34
35
36
LC75841PE
18 S18
17 S17
16 S16
15 S15
14 S14
13 S13
12 S12
11 S11
10 S10
Top view
No.A1578-5/18

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LC75841PE arduino
LC75841PE
Control Data Functions
1. P0 to P2: Segment output port/general-purpose output port switching control data
These control data bits switch the segment output port/general-purpose output port functions of the S1/P1 to S4/P4
output pins.
However, segment output port is forcibly selected when in 842 mode data transfer.
Control data
Output pin state
P0 P1 P2
S1/P1
S2/P2
S3/P3
S4/P4
000
S1
S2
S3
S4
001
P1
S2
S3
S4
010
P1
P2
S3
S4
011
P1
P2
P3
S4
100
P1
P2
Note: Sn (n = 1 to 4): Segment output ports
Pn (n = 1 to 4): General-purpose output ports
P3
P4
Note that when the general-purpose output port function is selected, the correspondence between the output pins and
the display data will be that shown in the table.
Output pin
Corresponding display data
Static drive mode
1/2 duty drive mode
S1/P1
D1
D1
S2/P2
D2
D3
S3/P3
D3
D5
S4/P4
D4
D7
For example, if the general-purpose output port function is selected for the S4/P4 output pin in 1/2 duty drive mode,
it will output a high level (VDD) when display data D7 is 1, and a low level (VSS) when D7 is 0.
2. DT: Static drive mode or 1/2 duty drive mode switching control data
This control data bit selects either static drive mode or 1/2 duty drive mode.
However, 1/2 duty drive mode is forcibly selected when in 842 mode data transfer.
DT
Duty drive mode
Output pin state (COM2)
0 Static drive mode
1 1/2 duty drive mode
Note: COM2…Common output
VSS level
COM2
3. FC0 to FC2: Common/segment output waveform frame frequency control data
These control data bits set the frame frequency of the common and segment output waveforms.
However, fo=fosc/384 is forcibly selected when in 842 mode data transfer.
Control data
FC0 FC1
FC2
Frame frequency fo [Hz]
1 1 0 fosc/768, fCK/768
1 1 1 fosc/576, fCK/576
0 0 0 fosc/384, fCK/384
0 0 1 fosc/288, fCK/288
0 1 0 fosc/192, fCK/192
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