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PDF LC75850W Data sheet ( Hoja de datos )
| Número de pieza | LC75850W | |
| Descripción | 1/3 Duty General Purpose LCD Drivers | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number:ENN4467
CMOS IC
LC75850E, 75850W
1/3 Duty General Purpose LCD Drivers
Overview
The LC75850E and LC75850W are general purpose LCD
drivers for use in microprocessor controlled applications
such as radio tuner frequency displays.
Functions
• Supports both 1/3 duty 1/2 bias and 1/3 duty 1/3 bias
LCD driver techniques for a maximum of 156 segments.
• Power saving mode allows the backup function to be
switched on or off and all segments to be turned off un-
conditionally.
• Can be controlled by three serial data lines (CE, CL, and
DI) from the microprocessor. (CCB handling)
• High generality, since segment data can be displayed with-
out going through a decoder.
• The INH pin unconditionally turns off display.
• The LCD drive bias voltage can be provided internally or
externally.
• Power supply voltage: 4.5 to 8V.
Package Dimensions
unit:mm
3159-QIP64E
[LC75850E]
17.2
14.0 1.6
1.0 0.8
0.35 1.0
33
48
49 32
0.15
64
1
17
16
0.1
2.7
15.6 0.8
SANYO : QIP64E
unit:mm
3190-SQFP64
[LC75850W]
12.0
10.0
1.25 0.5 0.18
48
49
1.25
33
0.15
32
64
1
17
16
0.5 0.5
SANYO : SQFP64
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62501TN (KT)/D2493JN B8-0082, 0203 No.4467–1/11
1 page  
LC75850E, 75850W
Pin Functions
Pin
S1 to S52
COM1
COM2
COM3
OSC
CE
CL
DI
INH
VDD1
VDD2
Pin No.
1 to 52
53
54
55
61
62
63
64
57
58
59
Function
Segment outputs that display the data transferred as serial data
Common driver outputs. The frame frequency is fO=(fOSC/384)Hz.
Oscillator connection
(for generating the common segment alternation waveform)
Serial data transfer pins : connected to the
microprocessor.
CE: chip enable
CL: synchronization clock
DI: transfer data
Forcibly turns off the display without regard for the internal data.
Serial data can always be input, whatever the state of this pin.
Used for the 2/3 bias voltage when bias voltages are provided externally.
Connect to VDD2 when 1/2 bias is used.
Used for the 1/3 bias voltage when bias voltages are provided externally.
Connect to VDD1 when 1/2 bias is used.
Serial Data Transfer Format
1. Serial data
Active
–
–
–
H
L→ H
–
L
–
–
I/O
Handling
when unused
O Open
O Open
I GND
I GND
I GND
I Open
I Open
2. Data transfer format
3. When used with fewer than 156 segments
<Example> Using 63 segments
Segment allocation method……Sixty three segments are allocated starting at D156.
No.4467–5/11
5 Page 
Application Circuit Example 3
1/3 Bias (for use with large panels)
LC75850E, 75850W
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of June, 2001. Specifications and information herein are subject to
change without notice.
PS No.4467–11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LC75850W.PDF ] | |
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