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LC7940KD Scheda tecnica(PDF) 6 Page - Sanyo Semicon Device

Il numero della parte LC7940KD
Spiegazioni elettronici  CMOS IC Dot-Matrix LCD Drivers
Download  13 Pages
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Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC7940KD Scheda tecnica(HTML) 6 Page - Sanyo Semicon Device

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LC7940KD / LC7941KDR
No.A0573-6/13
Specifications
Absolute Maximum Ratings at Ta=25
±2°C, VSS = 0V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage (logic)
VDD max
-
-0.3 to +7.0
V
Maximum supply voltage (LCD)
VDD-VEE max
*1
0 to 22
V
Maximum input voltage
VI max
-
-0.3 to VDD +0.3
V
Operating temperature range
Topr
-
-20 to +85
°C
Storage temperature range
Tstg
-
-40 to +125
°C
Note *1 The following relations between elements should be maintained:
VDD≥V1>V3>V4>VEE, VDD-V3≤7V, V4-VEE≤7V
Allowable Operating Ranges at Ta = -20 to 85
°C, VSS = 0V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage (logic)
VDD
-
2.7
-
5.5
V
Supply voltage (LCD)
VDD-VEE
*2, 3
8
-
20
V
Input high level voltage
VIH
CP, CDI, DI1 to DI3, M, SDI, P/S,
DISPOFF, and LOAD
0.8VDD
-
-
V
Input low level voltage
VIL
CP, CDI, DI1 to DI3, M, SDI, P/S,
DISPOFF, and LOAD
-
-
0.2VDD
V
CP Shift clock frequency
fCP
CP
-
-
3.3
MHz
CP pulse width
tWC
CP
100
-
-
ns
LOAD pulse width
tWL
LOAD
100
-
-
ns
DIn and SDI to CP setup time
tSETUP
DIn and SDI to CP
80
-
-
ns
DIn and SDI to CP hold time
tHOLD
DIn and SDI to CP
80
-
-
ns
tCL1
CP to LOAD
0
-
-
ns
CP to LOAD time
tCL2
CP to LOAD
100
-
-
ns
LOAD to CP time
tLC
LOAD to CP
100
-
-
ns
CP rise time
tR
CP
-
-
50
ns
CP fall time
tF
CP
-
-
50
ns
LOAD rise time
tRL
LOAD
-
-
50
ns
LOAD fall time
tFL
LOAD
-
-
50
ns
Note *2 The following relations between elements should be maintained:
VDD≥V1>V3>V4>VEE, VDD-V3≤7V, V4-VEE≤7V
*3 When the power is turned on, either the logic system power must be turned on before the LCD drive system
power or else they must both be turned on at the same time. When the power is turned off, either the LCD drive
system power must be turned off before the logic system power, or else both must be turned off at the same
time.


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