BU97950FUV Datasheet, PDF (4/25 Pages) Rohm – Standard LCD Segment Drivers

BU97950FUV MAX 280 segments (SEG35×COM8)
Datasheet
●Electrical Characteristics – continued
Oscillation Characteristics (VDD=2.5 to 5.5V, VLCD=2.5 to 5.5V, VSS=0V, Ta=-40°C to 85°C, unless otherwise specified)
Parameter
Limits
Symbol
Unit
MIN TYP MAX
Conditions
Frame frequency
fCLK
56
80
104 Hz FR = 80Hz setting, VDD=3.3V
MPU I/F Characteristics (VDD=2.5 to 5.5V, VLCD=2.5 to 5.5V, VSS=0V, Ta=-40°C to +85°C, unless otherwise specified)
Parameter
Limits
Symbol
Unit
MIN TYP MAX
Conditions
Input rise time
tr
-
-
0.3 µs
Input fall time
tf
-
-
0.3 µs
SCL cycle time
tSCYC 2.5
-
-
µs
“H” SCL pulse width
tSHW
0.6
-
-
µs
“L” SCL pulse width
tSLW
1.3
-
-
µs
SDA setup time
tSDS
200
-
-
ns
SDA hold time
tSDH
0
-
-
ns
Bus free time
tBUF
1.3
-
-
µs
START condition hold time tHD;STA 0.6
-
-
µs
START condition setup time tSU;STA 0.6
-
-
µs
STOP condition setup time tSU;STO 0.6
-
-
µs
Figure 4. Serial Interface Timing
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TSZ02201-0A0A2D300090-1-2
08.Sep.2015 Rev.004