BU91600FV-M Datasheet, PDF (8/67 Pages) Rohm – Low Duty LCD Segment Driver

BU91600xxx Series MAX 148 Segments (37SEG x 4COM)
Datasheet
MPU Interface Characteristics (Ta = -40 to +105°C, VDD = 2.7V to 6.0V, VSS = 0.0V)
Parameter
Data Setup Time
Data Hold Time
SCE Wait Time
SCE Setup Time
SCE Hold Time
Clock Cycle Time
High-level Clock Pulse
Width
Low-level Clock Pulse
Width (Write)
Low-level Clock Pulse
Width (Read)
Rise Time
Fall Time
Symbol
tds
tdh
tcp
tcs
tch
tccyc
tchw
Pin
SCL, SDI
SCL, SDI
SCE, SCL
SCE, SCL
SCE, SCL
SCL
SCL
tclww SCL
tclwr SCL
tr SCE, SCL, SDI,
tf
SCE, SCL, SDI,
Conditions
RPU=4.7KΩ
CL=10pf^(Note)
Min
Limit
Typ
Max
Unit
120
-
-
ns
120
-
-
ns
120
-
-
ns
120
-
-
ns
120
-
-
ns
320
-
-
ns
120
-
-
ns
120
-
-
ns
1.6
-
-
160
-
160
-
us
-
ns
-
ns
INH Switching Time
tc INHb, SCE
10
-
-
µs
SDO Output Delay
Time
tdc SDO
RPU=4.7KΩ
CL=10pf^(Note)
-
-
1.5
µs
SDO Rise Time
tdr SDO
RPU=4.7KΩ
CL=10pf^(Note)
-
-
1.5
µs
(Note) Since SDO is an open-drain output, ”tdc” and “tdr” depend on the resistance of the pull-up resistor RPU and the load capacitance SCL.
RPU: 1kΩ≤RPU≤10kΩ is recommended.
CL: A parasitic capacitance to VSS in an application circuit. Any component is not necessary to be attached.
Power supply for I/O level
SDO
RPU
Host
CL
1. When SCL is stopped at the low level
SCE
SCL
SDI
SDO
VIH1
VIL1
tr
VIH1
VIL1
tccyc
tchw
tclww
tf
tds
tdh
VIH1
tcs
tclwr
VOL5
tdc
2. When SCL is stopped at the high level
SCE
VIH1
SCL
SDI
SDO
VIH1
VIL1
tccyc
tclww
tchw
tf
VIH1
VIL1
tr
tds
tdh
tclwr
tcp
VOL5
tdc
Figure 7. Serial Interface Timing
VIL1
tch
tdr
VIL1
tch
tdr
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TSZ22111・15・001
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TSZ02201-0P4P0D301300-1-2
16.Feb.2016 Rev.001