BU97930MUV Datasheet, PDF (11/24 Pages) Rohm – Multifunction Segment Drivers

BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
Technical Note
Oscillation Characteristics (Ta=-40 ~ 85°C, VDD=2.7 ~ 5.5V, VLCD=4.5 ~ 5.5V , VSS=0V)
Parameters
Limits
Symbol
Unit
MIN TYP MAX
Conditions
Frame Frequency
fCLK
56
80
104 Hz fFR = 80Hz setting, 1/4 Duty setting
MPU interface Characteristics (Ta=-40 ~ 85°C, VDD=2.7V ~ 5.5V, VLCD=4.5 ~ 5.5V , VSS=0V)
Parameters
Symbol
MIN.
Limits
TYP.
Unit
MAX.
Conditions
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
20
-
-
ns
CSB Setup Time
tCSS
50
-
-
ns
CSB Hold Time
tCSH
50
-
-
ns
“H” CSB Pulse Time
tCHW
50
-
-
ns
CSB
tCSS
tf
tSLW
tr
tSCYC
SCL
tSHW
tCHW
tCSH
tSDS tSDH
SD
Fig.4 Serial interface Timing
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11/23
2010.04 - Rev.A