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LC7940YD Fiches technique(PDF) 1 Page - Sanyo Semicon Device

No de pièce LC7940YD
Description  Dot-matrix LCD Drivers
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

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LC7940YD,7941YD
SANYO Electric Co., Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63099RM (ID) No. 6158—1/11
Ordering number: EN 6158
s
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.
s
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.
CMOS IC
Dot-matrix LCD Drivers
Overview
The LC7940YD and LC7941YD are segment driver ICs
for driving large, dotmatrix LCD displays. They read 4
bit parallel or serial input, display data from a controller
into an 80bit latch, and then generate LCD drive signals
corresponding to that data.
The LC7940YD and LC7941YD feature mirrorimage pin
assignments, allowing them to be used together to increase
component density. They are designed to be used with the
LC7942YD common driver to drive large LCD panels.
Features
• 80 builtin LCD display drive circuits
• 1/8 to l/128display duty cycle
• Serial or 4bit parallel data input
• Chip disable for low power dissipation for largesized
panels
• Bias supply voltags can be supplied externally
• Operating supply voltage and ambient temperature
- 2.7 to 5.5 V logic supply ( VDD) at Ta = 20 to +85°C
- 8 to 20V LCD supply (VDD – VEE ) at Ta = 20 to
+85 °C
• CMOS process
• 100pin flat plastic package
Package Dimensions
unit: mm
3180QIP100D
Specifications
Absolute Maximum Ratings at Ta = 25 ± 2°C, VSS = 0 V
[LC7940YD, LC7941YD]
21.6
0.8
0.15
2.15
0.3
100
130
31
50
51
80
81
1.6
0.575
20.0
23.2
0.65
SANYO : QFP100D (QIP100D)
Parameter
Symbol
Ratings
Unit
Logic supply voltge
VDD max
–0.3 to +7.0
V
LCD supply voltage, See Note below.
VDD – VEE max
0 to 22
V
Input voltage
VI max
–0.3 to VDD + 03
V


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