BU97930MUV Datasheet, PDF (7/24 Pages) Rohm – Multifunction Segment Drivers

BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
Technical Note
Oscillation Frequency Characteristics (Ta=-40 ~ 85°C, VDD=1.8V ~ 3.6V, VLCD=2.7V ~ 5.5V, VSS=0)
Parameter
Limits
Symbol
Unit
MIN
MIN
MIN
Conditions
Frame frequency 1
fFR1
57.6
64
70.4 Hz VDD=3.3V, Ta=25°C, fFR=64Hz setting
Frame frequency 2
fFR2
51.2
64
73.0 Hz VDD=2.5 ~ 3.6V fFR=64Hz setting
Frame frequency 3
fFR3
45.0
-
64 Hz VDD=1.8 ~ 2.5V fFR=64Hz setting
MPU interface Characteristics (Ta=-40 ~ 85°C, VDD=1.8V ~ 3.6V, VLCD=2.7V ~ 5.5V, VSS=0)
Parameter
Symbol
Limits
Unit
MIN
TYP MAX
Conditions
Input rise time
tr
-
-
50 ns
Input fall time
tf
-
-
50 ns
SCL cycle time
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
tCHW
CSB
tCSS
tf
tr
tSCYC
SCL
tSLW
tSHW
tSDS tSDH
SD
tCSH
Fig.2 Serial Interface Timing
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7/23
2010.04 - Rev.A