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Rohm Semiconductor Electronic Components Datasheet

BU91530KVT-M Datasheet

Multi-function LCD Segment Drivers

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Datasheet
LCD Segment Drivers
Multi-function LCD Segment Drivers
BU91530KVT-M
MAX 445 Segment(89SEGx5COM)
General Description
The BU91530KVT-M is 1/5, 1/4, 1/3 or 1/1 duty
general-purpose LCD driver that can be used for
frequency display in electronic tuners under the control of
a microcontroller. The BU91530KVT-M can drive up to
445 LCD Segments directly. The BU91530KVT-M can
also control up to 9 general-purpose output ports.
These products also incorporate a key scan circuit that
accepts input from up to 30 keys to reduce printed circuit
board wring.
Features
AEC-Q100 Qualified (Note1)
Key input function for up to 30 keys (A key scan is
performed only when a key is pressed.)
Either 1/5, 1/4, 1/3 or 1/1 duty (static)
can be selected with the serial control data.
1/5 duty drive: Up to 445 segments can be driven
1/4 duty drive: Up to 360 segments can be driven
1/3 duty drive: Up to 270 segments can be driven
1/1 duty drive: Up to 90 segments can be driven
Serial Data Control of frame frequency for common
and segment output waveforms.
Serial data control of switching between the segment
output port , PWM output port and general-purpose
output port functions.(Max 9 ports)
Built-in OSC circuit
Integrated Power-on Reset Circuit
No external component
Low power consumption design
Supports Line and Frame Inversion
(Note1) Grade 3
Applications
Car Audio, Home Electrical Appliance,
Meter Equipment etc.
Key Specifications
Supply Voltage Range:
+2.7V to +6.0V
Operating Temperature Range: -40°C to +85°C
Max Segments:
445 Segments
Display Duty
1/1, 1/3, 1/4, 1/5 Selectable
Bias:
1/2, 1/3 Selectable
Interface:
3wire Serial Interface
Package
W (Typ.) x D (Typ.) x H (Max.)
TQFP100V
16.00mm x 16.00mm x 1.20mm
Typical Application Circuit
Key Matrix
+5V
(Note1)
From
Control
To Control
KS1/S79
|
KS6/S84
VDD
KI1/S85
| COM1
KI5/S89
COM2
COM3
COM4
COM5/S78
S1/P1/G1
SCE
SCL
SDI
SDO
S9/P9/G9
S10
S77
OSC/S90
(P1/G1) (General purpose/PWM ports)
(P9/G9) (For use control of backlight)
LCD Panel
(Up to 445
Segments)
(Note1) Insert capacitors between VDD and VSS C0.1uF
Figure 1. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays.
1/56
TSZ02201-0P4P0D301190-1-2
19.Aug.2015 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BU91530KVT-M Datasheet

Multi-function LCD Segment Drivers

No Preview Available !

BU91530KVT-M
Block Diagram
Pin Arrangement
76
S76
S77
COM5/S78
COM4
COM3
COM2
COM1
KS1/S79
KS2/S80
KS3/S81
KKSS44/S/S882
KKSS552/S/S883
KKSS663//SS884
KI14/S85
KI2/S86
KI3/S87
KI4/S88
KI5/S89
VDD
SDO
VSS
OSC/S90
SCE
SCCLL
SDDII
100
Figure 2. Block Diagram
50
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
26
Figure 3. Pin Configuration(TOP VIEW)
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/56
TSZ02201-0P4P0D301190-1-2
19.Aug.2015 Rev.001


Part Number BU91530KVT-M
Description Multi-function LCD Segment Drivers
Maker ROHM
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BU91530KVT-M Datasheet PDF






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