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PDF LC75823E Data sheet ( Hoja de datos )
| Número de pieza | LC75823E | |
| Descripción | 1/3 Duty General-Purpose LCD Drivers | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC75823E (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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Ordering number: EN4801A
SAXYO
No. 4801A
CMOS LSI
LC75823E, 75823W
1/3 Duty General-Purpose LCD Drivers
hh
Overview
The LC75823E and LC75823W are general-purpose LCD
display drivers that can be used for frequency display in
m i c r o p r o c e s s o r - c o n t r o l l e d radio r e c e i v e s and in other
display applications. In addition to being able to directly
drive up to 156 LCD segments.
Features
• Supports both 1/3 duty 1/2 bias and 1/3 duty 1/3 bias
LCD drive of up to 156 segments under serial data
control.
• Serial data input supports CCB* format communication
with the system controller.
• Serial data control of the power-saving mode based
backup function and all the segments forced off function
• High generality since display data is displayed directly
without decoder intervention.
• The INH pin can force the display to the off state.
• The LCD drive bias voltage can be provided internally
or externally.
• Power supply voltage: 4.5 to 6 V
• The L C 7 5 8 2 3 E / W is a low -voltage version of
LC75850E/W. (Pin compatible)
• CCB Is a trademark of SANYO ELECTRIC CO., LTD.
» C C B is SANYO'S original bus format and all the bus
addresses are controlled by SANYO.
Package Dimensions
unit: mm
3159-QFP64E
[LC75823E]
1.7. 2
„1L-15
1-
O
•M rUUUBQUBUUHUUUUUU^r
0-35,
SANYO: QFP64E
unit: mm
3190-SQFP64
[LC75823W]
JiJl
'00
32
Specifications
Absolute Maximum Ratings at Ta = 25°C, V s s = 0 V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD
VIN1
V,n2
VOUT
'OUT1
'OUT2
Pd max
Topr
Tstg
VDD
CE, CL, Dl, INH
OSC
OSC
S I to S52
COM1 to COM3
Ta = 85'C
Conditions
JLpifl QJU J J & .
SANYO: SQFP64
Ratings
- 0 . 3 to +6,5
- 0 . 3 to +6.5
—0.3 to V D D + 0,3
- 0 . 3 to V D O + 0 , 3
300
3
200
- 4 0 to +85
- 5 5 to +125
Unit
V
V
V
V
^A
mA
mW
"C
J SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
52096HA (OTVN1594TH (OT) No. 4801-1/12
1 page  
Pin Functions
LC75823E, 75823W
Pin
S1 to S52
COM1
COM2
COM3
OSC
CE
CL
Dl
INH
VDD1
VDD2
VDD
Vss
Pin No.
1 to 52
53
54
55
61
62
63
64
57
58
59
56
60
Function
Segment outputs for displaying the display data transferred
by serial data input.
Common driver outputs.
The frame frequency fo Is
given
by:
f0
=
(fosc'3®4)
Hz.
Oscillator connection
An oscillator circuit is formed by connecting an external
resistor and capacitor to this pin.
Serial data transfer inputs. These pins are
connected to the control microprocessor.
CE: chip enable
CL: synchronization clock
Dl: transfer data
Display off control input
•INH = low ( V s s )
Display foroed off (Si to S52, COM1 to COM3 - low)
•INH « high ( V D 0 ) , Display on
Note that serial data transfers can be performed when
the display is forced off.
Used for the 2/3 bias voltage when bias voltages are provided externally.
Connect to V d D 2 when 1/2 bias is used.
Used for the 1/3 bias voltage when bias voltages are provided externally.
Connect to V D D 1 when 1/2 bias is used.
Power supply. Provide a voltage of between 4.5 and 6.0 V.
Ground, Connect this pin to the system ground.
Serial Data Transfer Format
1. When CL is stopped at the low level
Active
—
—
—
H
—
L
—
_
—
—
I/O
Handling
when unused
O Open
0 Open
I/O VDD
I GND
I GND
1 Open
1 Open
——
——
j~Lnj~i_.
! * i ° n oKo x o k * I i i
BO B1 B2 B3 AD A1 A2
CCB address
8 bils
2. When CL is stopped at the high level
0 1 I PS I D3 I
_ _ 1 0 1 5 4 ^ 0 1 5 5 ^ 0 1 5 6 | PR \ SC \ BU | X
Display data
156 bits
Control data
4 bits
don't care
A04024
_r
~TJTiTJi_rLrL_rL_ru
m_rui_
n_Ti_n_ri_ru-i_r
1 X 0 X 0 X 0 X Q K 0 )i 1 K
BO B1 8 2 B3 AO A I A3
CCB address
8 bits
V
A3
Pi | p g | D3 |
|0154](PI5S)[DI{
Display data
156 bits
• CCB address
• D1 toD156
• DR
• SC
• BU
41H
Display data
Dn (n = 1 to 156) = 1
Display on
Dn (n = 1 to 156) = 0
Display off
1/2-bias drive or 1/3-bias drive switching control data
Segments on/off control data
Normal mode/power-saving mode control data
PR I SC I BU K X
Control data
4 bits
don't tare
A0402B
No. 4801-5/12
5 Page 
Sample Application Circuit 1
1/3 Bias (for use with small panels)
LC75823E, 75823W
Sample Application Circuit 2
1/3 Bias (for use with normal size panels)
AO 1 2 6 7
AO 1 2 6 8
No. 4801-11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LC75823E.PDF ] | |
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