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PDF LC75836W Data sheet ( Hoja de datos )
| Número de pieza | LC75836W | |
| Descripción | 1/4-Duty General-Purpose LCD Display Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA0428A
LC75836W
CMOS IC
1/4-Duty General-Purpose
LCD Display Driver
http://onsemi.com
Overview
The LC75836W is 1/4-duty general-purpose microprocessor-controlled LCD driver that can be used in applications
such as frequency display in products with electronic tuning. In addition to being able to drive up to 140 segments
directly, the LC75836W can also control up to 4 general-purpose output ports.
Features
• 1/4 duty, 1/3 bias drive (Up to 140 segment can be displayed.)
• Serial data input supports CCB* format communication with the system controller (support 3V operation).
• Serial data control of the power-saving mode based backup function and the all segments forced off function.
• Serial data control of switching between the segment output port and general-purpose output port functions.
• Serial data control of the frame frequency of the common and segment output waveforms.
• Either RC oscillator operating or external clock operating mode can be selected with the serial control data.
• High generality, since display data is displayed directly without the intervention of a decoder circuit.
• The INH pin allows the display to be forced to the off state.
• RC oscillation circuit (with external resistor and capacitor)
• CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
• CCB is a registered trademark of Semiconductor Components Industries, LLC.
Semiconductor Components Industries, LLC, 2013
July, 2013
32509HKIM 20070522-S00003/70506HKIM No.A0428-1/18
1 page  
Package Dimensions
unit : mm (typ)
3163B
9.0
7.0
36 25
37 24
48
1
(0.75)
0.5
13
12
0.18
LC75836W
0.15
SANYO : SQFP48(7X7)
Pin Assignment
COM3
COM4
S35
VDD
VDD1
VDD2
VSS
OSC
INH
CE
CL
DI
36
37
48
1
LC75836W
25
24 S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
13 S13
12
Top view
No.A0428-5/18
5 Page 
LC75836W
Control Data Functions
1. 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.
Control data
FC0 FC1 FC2
Frame frequency fo [Hz]
110
111
000
001
010
fosc/768,fCK/768
fosc/576,fCK/576
fosc/384,fCK/384
fosc/288,fCK/288
fosc/192,fCK/192
2. 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.
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
P3
P4
Note: Sn (n = 1 to 4): Segment output ports
Pn (n = 1 to 4): General-purpose output ports
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
S1/P1
D1
S2/P2
D5
S3/P3
D9
S4/P4
D13
For example, if the general-purpose output port function is selected for the S4/P4 output pin, that output pin will
output a high level (VDD) when the display data D13 is 1, and a low level (VSS) when the D13 is 0.
3. OC: RC oscillator operating mode/external clock operating mode switching control data.
This control data bit switches the OSC pin function
(either RC oscillator operating mode or external clock operating mode).
OC OSC pin function
0 RC oscillator operating mode
1 External clock operating mode
Note: An external resistor, Rosc, and an external capacitor, Cosc, must be connected to the OSC pin if RC oscillator
operating mode is selected.
4. SC: Segment on/off control data
This control data bit controls the on/off state of the segments.
SC Display state
0 On
1 Off
Note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting segment off
waveforms from the segment output pins.
No.A0428-11/18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet LC75836W.PDF ] | |
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