BU97941FV_15 Datasheet, PDF (4/27 Pages) Rohm – Multifunction LCD Segment Driver

BU97941FV MAX 104 segments (SEG26×COM4)
●Electrical Characteristics – continued
Oscillation Frequency Characteristics (Ta=-40°C to +85°C、VDD=1.8V to 3.6V、VLCD=2.7V to 5.5V、VSS=0V )
Limit Value
Item
Symbol
Unit
MIN
TYP
MAX
Condition
Frame Frequency 1
fFR1
76.5
85
93.5
Hz VDD=3.3V、Ta=25°C、fFR=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°C、VDD=1.8V to 3.6V、VLCD=2.7V to 5.5V、VSS=0V )
Item
Symbol
Limit Value
Unit
MIN
TYP
MAX
Condition
Input Rise Time
ｔｒ
-
-
50
ns
Input Fall Time
ｔf
-
-
50
ns
SCL Cycle
tSCYC
250
-
-
ns
“H” SCL pulse width
tSHW
50
-
-
ns
“L” 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
“H” 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
10.Apr.2015 Rev.004