BU91501KV-M Datasheet, PDF (4/34 Pages) Rohm – Multi- function LCD Segment Drivers

BU91501KV-M
Datasheet
Electrical Characteristics – continued
Oscillation Characteristics (Ta=-40°C to +105°C, VDD=2.7 to 6.0V, VLCD=4.5V to 6.0V, VSS=0.0V)
Parameters
Symbol
MIN
Limits
Unit
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
90
VLCD = 6.0V
VLCD = 5.0V
80
VLCD = 4.5V
70
60
-40 -20
0 20 40 60
Temperature[℃]
80 100
Figure 4. Typical temperature characteristics
MPU interface Characteristics (Ta=-40 to +105°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=4.7k, CL=10pF ^(Note4)
DO Rise Time
tDR
-
-
1.5
µs DO RPU=4.7k, 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
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥15ï½¥001
tDC
Figure 5. 3-wire Serial Interface Timing
4/30
tDR
TSZ02201-0P4P0D301120-1-2
8.July.2015 Rev.001