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BU97941FV Datasheet, PDF (4/25 Pages) Rohm – Multifunction LCD Segment Driver | |||
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BU97941FV MAX 104 segments (SEG26ÃCOM4)
Datasheet
âElectrical Characteristics â continued
Oscillation Frequency Characteristics (Ta=-40°C to +85°CãVDD=1.8V to 3.6VãVLCD=2.7V to 5.5VãVSS=0V )
Limit Value
Item
Symbol
Unit
MIN
TYP
MAX
Condition
Frame Frequency 1
fFR1
76.5
85
93.5
Hz VDD=3.3VãTa=25°CãfFR=85Hz setting
Frame Frequency 2
fFR2
68
85
97.0
Hz VDD=2.5V to 3.6V fFR=85Hz setting
Frame Frequency 3
fFR3
59.7
-
68
Hz VDD=1.8V to 2.5V fFR=85Hz setting
MPU Interface Characteristics (Ta=-40°C to +85°CãVDD=1.8V to 3.6VãVLCD=2.7V to 5.5VãVSS=0V )
Item
Symbol
Limit Value
Unit
MIN
TYP
MAX
Condition
Input Rise Time
ï½ï½
-
-
50
ns
Input Fall Time
ï½f
-
-
50
ns
SCL Cycle
tSCYC
250
-
-
ns
âHâ SCL pulse width
tSHW
50
-
-
ns
âLâ SCL pulse width
tSLW
50
-
-
ns
SD Setup Time
tSDS
50
-
-
ns
SD Hold Time
tSDH
50
-
-
ns
CSB Setup Time
tCSS
50
-
-
ns
CSB Hold Time
tCSH
50
-
-
ns
âHâ CSB pulse width
tCHW
50
-
-
ns
CSB
SCL
SD
tCSS
tf
tr
tSCYC
tSLW
tSHW
tSDS tSDH
tCHW
tCSH
Figure 4. Serial Interface Timing
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TSZ02201-0A0A2D300080-1-2
1.Jun.2012 Rev.001
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