900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Rohm Semiconductor Electronic Components Datasheet

BU97520AKV-M Datasheet

Multi-function LCD Segment Drivers

No Preview Available !

LCD Segment Drivers
Multi-function LCD Segment Drivers
BU97520AKV-M
MAX 276 Segment(69SEG x 4COM)
General Description
The BU97520AKV-M is 1/4 or 1/3-Duty general-purpose
LCD driver that can be used for frequency display in
electronic tuners under the control of a microcontroller.
The BU97520AKV-M can drive up to 276 LCD
Segments directly. The BU97520AKV-M can also
control up to 6 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 wiring.
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 1/4 or 1/3-Duty can be selected with the serial
control data.
1/4-Duty drive: Up to 276 segments
1/3-Duty drive: Up to 207 segments
„ 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 6 port)
„ Built-in OSC circuit
„ The INHb pin can force the display to the off state.
„ Integrated Power-on Reset circuit
„ No external component required
„ Low power consumption design
„ Supports Line and Frame Inversion
(Note1) Grade 3
Key Specifications
„ Supply Voltage Range:
„ Operating Temperature Range:
„ Max Segments:
„ Display Duty:
„ Bias:
„ Interface:
+2.7V to +6.0V
-40°C to +85°C
276 Segments
1/3, 1/4 selectable
1/2, 1/3 selectable
3wire serial interface
Packages
VQFP80
W(Typ.)×D(Typ.)×H(Max.)
VQFP80
14.00mm x 14.00mm x 1.60mm
Applications
„ Car audio, Home electrical appliance,
Meter equipment etc.
Typical Application Circuit
Key matrix
(P1/G1)
(P6/G6)
(General purpose/PWM ports)
(For use control of backlight)
KS1/S56
|
KS6/S61
KI1/S62
|
KS5/S66
COM1
COM2
COM3
COM4
S1/P1/G1
S2/P2/G2
+5V
(Note2)
From
Co n troll er
To Controller
VDD
INHb
SCE
SCL
SDI
SDO
S6/P6/G6
S7
S66
S67
S68
OSC/S69
LCD Panel
(Up to 276
Seg men ts )
(Note2) Insert capacitors between VDD and VSS C > 0.1uF.
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
1/41
TSZ02201-0P4P0D300570-1-2
19.Mar.2015 Rev.006


Rohm Semiconductor Electronic Components Datasheet

BU97520AKV-M Datasheet

Multi-function LCD Segment Drivers

No Preview Available !

BU97520AKV-M
Block Diagram
INHb
OSC/
S69
SCE
SCL
SDI
SDO
VDD
VSS
COMMON Driver
--- ---
SEGMENT Driver
Clock / Timing
Generator
Control Register
PWM Register
Serial
Interface
VDET
LCD v oltage
Generator
VLCD
VLCD1
VLCD2
Shift Register
KEY Buffer
KEY SCAN
Pin Configuration
Figure 2. Block Diagram
Datasheet
KI2 / S63
KI3 / S64
KI4 / S65
KI5 / S66
COM1
COM2
COM3
COM4
S67
VDD
S68
SDO
VSS
OSC / S69
INHb
SCE
SCL
SDI
S1 / P1 / G1
S2 / P2 / G2
61
80
40
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
21
Figure 3. Pin Configuration (TOP VIEW)
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/41
TSZ02201-0P4P0D300570-1-2
19.Mar.2015 Rev.006


Part Number BU97520AKV-M
Description Multi-function LCD Segment Drivers
Maker ROHM
PDF Download

BU97520AKV-M Datasheet PDF






Similar Datasheet

1 BU97520AKV-M Multi-function LCD Segment Drivers
ROHM
2 BU97520AKV-M Multi-function LCD Segment Drivers
Rohm





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy