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BU9794AGUW-E2 Datasheet(PDF) 3 Page - Rohm

No. de pieza BU9794AGUW-E2
Descripción Electrónicos  Standard Segment Drivers
Download  15 Pages
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU9794AGUW-E2 Datasheet(HTML) 3 Page - Rohm

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Technical Note
3/14
BU9795AKV,BU9795AFV,BU9795AGUW,BU9794AKV,BU97950FUV
www.rohm.com
2011.03 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
Electrical characteristics
<BU9795AKV/FV/GUW>
DC Characteristics (VDD=2.5~5.5V, VSS=0V, Ta=-40~85℃, unless otherwise specified)
Parameter
Symbol
Limits
Unit
Condition
Min.
Typ.
Max.
“H” level input voltage
VIH
0.7VDD
-
VDD
V
SD, SCL, CSB
“L” level input voltage
VIL
VSS
-
0.3VDD
V
SD, SCL, CSB
“H” level input current
IIH
-
-
1
µA
SD, SCL, CSB
“L” level input current
IIL
-1
-
-
µA
SD, SCL, CSB
LCD Driver
on resistance
SEG
RON
-
3.5
-
kΩ
Iload=±10µA
COM
RON
-
3.5
-
kΩ
VLCD supply voltage
VLCD
0
-
VDD -2.4
V
VDD-VLCD
 2.4V
Standby current
Ist
-
-
5
µA
Display off, Oscillator off
Power consumption 1
IDD1
-
12.5
30
µA
VDD=3.3[V], Ta=25℃,
Power save mode1, FR=70Hz
1/3 bias, Frame inverse
Power consumption 2
IDD2
-
20
40
µA
VDD=3.3[V], Ta=25℃,
Normal mode, FR=80Hz
1/3 bias, Line inverse
Oscillation Characteristics (VDD=2.5~5.5V,VSS=0V, Ta=-40~85℃)
Parameter
Symbol
Limits
Unit
Condition
Min.
Typ.
Max.
Frame frequency
fCLK
56
80
104
Hz
FR = 80Hz setting
Frame frequency1
fCLK1
70
80
90
Hz
VDD=3.5V, 25℃
MPU interface Characteristics(VDD=2.5V~5.5V,VSS=0V, Ta=-40~85℃)
Parameter
Symbol
Limits
Unit
Condition
Min.
Typ.
Max.
Input rise time
tr
-
-
80
ns
Input fall time
tf
-
-
80
ns
SCL cycle time
tSCYC
400
-
-
ns
“H” SCL pulse width
tSHW
100
-
-
ns
“L” SCL pulse width
tSLW
100
-
-
ns
SD setup time
tSDS
20
-
-
ns
SD hold time
tSDH
50
-
-
ns
CSB setup time
tCSS
50
-
-
ns
CSB hold time
tCSH
50
-
-
ns
“H” CSB pulse width
tCHW
50
-
-
ns
Fig.1 Interface Timing (BU9795AKV/FV/GUW)
tCHW
CSB
SCL
SD
tCSH
tSCYC
tSLW
tSHW
tSDS
tSDH
tf
tr
tCSS


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