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Rohm Semiconductor Electronic Components Datasheet

BU97530KVT Datasheet

Multi-function LCD Segment Drivers

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LCD Segment Drivers
Multi-function LCD Segment Drivers
BU97530KVT
MAX 445 Segment(89segx5COM)
General Description
The BU97530KVT 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 BU97530KVT can
drive up to 445 LCD Segments directly. The
BU97530KVT 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
„ 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
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
Packages
TQFP100V
W(Typ.)×D(Typ.)×H(Max.)
TQFP100V
16.00mm x 16.00mm x 1.20mm
Applications
„ Car audio, Home electrical appliance,
Meter equipment etc.
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
TSZ02201-0P4P0D300570-1-2
02.Mar.2015 Rev.003


Rohm Semiconductor Electronic Components Datasheet

BU97530KVT Datasheet

Multi-function LCD Segment Drivers

No Preview Available !

BU97530KVT
Block Diagram
Datasheet
Pin Arrangement
76
S76
S77
COM5/S78
COM4
COM3
COM2
COM1
KS1/S79
KS2/S80
KS3/S81
KKSS44//SS882
KKSS552//SS883
KKSS663//SS884
KI14/S85
KI2/S86
KI3/S87
KI4/S88
KI5/S89
VDD
SDDOO
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
TSZ02201-0P4P0D300570-1-2
02.Mar.2015 Rev.003


Part Number BU97530KVT
Description Multi-function LCD Segment Drivers
Maker ROHM
PDF Download

BU97530KVT Datasheet PDF






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