BU91510KV-M Datasheet, PDF (6/32 Pages) Rohm – Multi- function LCD Segment Drivers

BU91510KV-M
Datasheet
Pin Description
Symbol
S1/P1/G1 to
S6/P6/G6
S7 to S54
COM1 to COM4
S52/OSC
SCE
SCL
SDI
INHb
VDD
VSS
Pin No.
1 to 6
7 to 50
55,57,58
51 to 54
60
62
63
64
61
56
59
Function
Segment output.
The S1/P1/G1 to S6/P6/G6 pins can be used as general
–purpose outputs.
Common driver output pins. The frame frequency is fo[Hz].
Segment output.
The pin S52/OSC can be used external frequency input pin
when set up by the control data.
Serial data transfer inputs. Must be connected to the
controller.
SCE: Chip enable
SCL: Synchronization clock
SDI: Transfer data
Display off control input
• INHb = low (VSS) ...Display forced off
S1/P1/G1 to S6/P6/G6 = low (VSS)
S7 to S54 = low (VSS)
COM1 to COM4 = low (VSS)
Shuts off current to the LCD drive bias voltage generation
divider resistors.
Stop the internal oscillation circuit.
• INHb = high (VDD)...Display on
However, serial data transfer is possible when the display is
forced off.
Power supply pin for the logic circuit block.
A power voltage of 2.7V to 6.0V must be applied to this pin.
Power supply pin. Must be connected to ground.
Active I/O
-
O
-
O
-
I/O
H
I
↑
I
-
I
L
I
-
-
-
-
Handling
when
unused
OPEN
OPEN
OPEN
GND
VDD
-
-
IO Equivalence Circuit
VDD
VSS
VDD
SCE / SDI /SCL/
INHb
VSS
VDD
VDD
S7~51,53,54 /
COM1~4
VSS
VDD
S1/ PWM1/GPO1~
S6/ PWM6/GPO6
S52 / OSC
VSS
VSS
Figure 6. I/O Equivalence Circuit
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TSZ02201-0P4P0D301130-1-2
8.July.2015 Rev.001