BU97501KV Datasheet, PDF (4/33 Pages) Rohm – Integrated RAM for display data

BU97501KV
Datasheet
Electrical Characteristics – continued
Oscillation Characteristics (Ta=-40°C to +85°C, VDD=2.7 to 6.0V, VLCD=4.5V to 6.0V, VSS=0.0V)
Parameters
Limits
Symbol
Unit
MIN
TYP
MAX
Conditions
Frame Frequency1
fFR1
56
80
104
Hz VLCD=4.5V to 6.0V, fFR = 80Hz setting
Frame Frequency2
fFR2
68
80
92
Hz VLCD=5.0V, fFR = 80Hz setting
External Clock Frequency fFR3
30
-
600
kHz
External clock mode
(DRV CTRL1 setting : P2P1=11)
Frame frequency is decided external frequency and dividing ratio of DRV CTRL1 setting.
【Reference Data】
100
VDD = 4.0V Setting
90
VLCD = 6.0V
VLCD = 5.0V
80
VLCD = 4.5V
70
60
-40 -20 0 20 40 60 80
Temperature[℃]
Figure 4. Typical temperature characteristics
MPU interface Characteristics (Ta=-40 to +85°C, VDD=2.7V to 6.0V, VLCD=4.5 to 6.0V, VSS=0.0V)
Parameters
Limits
Symbol
Unit
MIN
TYP
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 Width
tCHW
50
-
-
ns
DO Output Delay Time
tDC
-
-
1.5
µs DO RPU=4.7kΩ, CL=10pF ^(Note4)
DO Rise Time
tDR
-
-
1.5
µs DO RPU=4.7kΩ, CL=10pF ^(Note4)
(Note4) Since DO can be an open-drain output; these values depend on the resistance of the pull-up resistor RPU and the load capacitance CL.
tCHW
CSB
tCSS
tf
tSLW
tr
tSCYC
SCL
tSHW
tCSH
tSDS tSDH
SD
DO
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tDC
Figure 5. 3-wire Serial Interface Timing
4/30
tDR
TSZ02201-0P4P0D300390-1-2
11.Apr.2014 Rev.004