BU91530KVT-M Datasheet, PDF (6/60 Pages) Rohm – Multi-function LCD Segment Drivers

BU91530KVT-M
Pin Description
Symbol
S1/P1/G1 to
S9/P9/G9
S10 to S77
KS1/S79 to
KS6/S84
KI1/S85 to
KI5/S89
COM1 to COM4
COM5/S78
OSC/S90
SCE
SCL
SDI
SDO
VDD
VSS
Pin No.
1 to 9
10 to 77
83 to 88
89 to 93
79 to 82
78
97
98
99
100
95
94
96
Function
Active I/O
Segment output for displaying the display data transferred by
-
O
serial data input. The S1/P1/G1 to S9/P9/G9 pins can also be
used as General –purpose outputs when so set up by the
control data.
Segment output for displaying the display data transferred by
-
O
serial data input.
Key scan outputs
-
O
Although normal key scan timing lines require diodes to be
inserted in the timing lines to prevent shorts, since these
outputs are unbalanced CMOS transistor outputs, these
outputs will not be damaged by shorting
when these outputs are used to form a key matrix. The
KS1/S79 to KS6/S84 pins can be used as segment outputs
when so specified by the control data.
Key scan inputs
-
I/O
These pins have built-in pull-down resistors.
The KI1/S85 to KI5/S89 pins can be used as segment
outputs when so specified by the control data.
Common driver output pins. The frame frequency is fo[Hz].
-
O
COMMON / SEGMENT output for LCD driving
-
O
Assigned as COMMON output in1/5 Duty mode and
SEGMENT output in 1/1 Duty, 1/3 Duty and 1/4 Duty modes
Segment output for displaying the display data transferred by
-
I/O
serial data input.
The pin OSC/S90 can be used as external frequency input
pin when set up by the control data.
Serial data transfer inputs. Must be connected to the
controller.
H
I
SCE: Chip enable
SCL: Synchronization clock
↑
I
-
I
SDI: Transfer data
Output data
-
O
Power supply pin of the IC
-
-
A power voltage of 2.7V to 6.0V must be applied to this pin.
Power supply pin. Must be connected to ground.
-
-
Handling
when
unused
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
-
-
-
OPEN
-
-
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TSZ02201-0P4P0D301190-1-2
19.Aug.2015 Rev.001