BU97520AKV-M PDF даташит
Спецификация BU97520AKV-M изготовлена «ROHM Semiconductor» и имеет функцию, называемую «Multi-function LCD Segment Drivers». |
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Детали детали
Номер произв | BU97520AKV-M |
Описание | Multi-function LCD Segment Drivers |
Производители | ROHM Semiconductor |
логотип |
30 Pages
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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 structure:Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
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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
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BU97520AKV-M
Datasheet
Absolute Maximum Ratings (Ta = 25°C, VSS = 0V)
Parameter
Symbol
Conditions
Rating
Unit
Maximum Supply Voltage
VDD max VDD
-0.3 to +6.5
V
Input Voltage
VIN1
SCE, SCL, SDI, INHb
-0.3 to +6.5
V
VIN2
KI1 to KI5
-0.3 to +6.5
V
Allowable Loss
Pd
1.20(Note3)
W
Operating Temperature
Topr
-40 to +85
°C
Storage Temperature
Tstg
-55 to +125
°C
(Note3) Derate by 12.0mW/°C when operating above Ta=25°C (when mounted in ROHM’s standard board).
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the
absolute maximum ratings.
Recommended Operating Conditions (Ta = -40°C to 85°C, VSS = 0V)
Parameter
Symbol
Conditions
Supply Voltage
VDD
Rating
Min Typ Max
2.7 5.0 6.0
Unit
V
Electrical Characteristics (Ta = -40°C to 85°C, VDD = 2.7V to 6.0V, VSS = 0V)
Parameter
Hysteresis
Power-on Detection
Voltage
“H” Level Input Voltage
“L” Level Input Voltage
Input Floating Voltage
Pull-down Resistance
Output Off Leakage
Current
“H” Level Input Current
“L” Level Input Current
“H” Level
Output Voltage
“L” Level
Output Voltage
Middle Level
Output Voltage
Symbol
VH1
VH2
VDET
VIH1
VIH2
VIH3
VIL1
VIF
RPD
IOFFH
IIH1
IIL1
VOH1
VOH2
VOH3
VOH4
VOL1
VOL2
VOL3
VOL4
VOL5
VMID1
VMID2
VMID3
Pin
SCE, SCL, SDI,
INHb
KI1 to KI5
VDD
SCE,SCL,SDI,INHb
SCE,SCL,SDI,INHb
KI1 to KI5
SCE,SCL,SDI,INHb
KI1 to KI5
KI1 to KI5
KI1 to KI5
SDO
SCE,SCL,SDI,INHb
SCE,SCL,SDI,INHb
S1 to S69
COM1 to COM4
P1/G1 to P6/G6
KS1 to KS6
S1 to S69
COM1 to COM4
P1/G1 to P6/G6
KS1 to KS6
SDO
S1 to S69
COM1
to COM4
S1 to S69
Conditions
4.0V ≤ VDD ≤ 6.0V
2.7V ≤ VDD < 4.0V
VDD=5.0V
VO=6.0V
VI = 5.5V
VI = 0V
IO = -20µA
IO = -100µA
IO = -1mA
IO = -500uA
IO = 20µA
IO = 100µA
IO = 1mA
IO = 25uA
IO = 1mA
1/2-Bias IO = ±20µA
1/2-Bias IO = ±100µA
1/3-Bias IO = ±20µA
VMID4 S1 to S69
1/3-Bias IO = ±20µA
Current Consumption
VMID5
VMID6
IDD1
IDD2
COM1
to COM4
COM1
to COM4
VDD
VDD
IDD3 VDD
1/3-Bias IO = ±100µA
1/3-Bias IO = ±100µA
Power-saving mode
VDD = 5.0V
Output open 1/2-Bias
Frame frequency =
80Hz
VDD = 5.0V
Output open 1/3-Bias
Frame frequency =
80Hz
Min
-
-
1.4
0.4VDD
0.8VDD
0.7VDD
0
-
50
-
-
-5.0
VDD-0.9
VDD-0.9
VDD-0.9
VDD-1.0
-
-
-
0.2
-
1/2VDD
-0.9
1/2VDD
-0.9
2/3VDD
-0.9
1/3VDD
-0.9
2/3VDD
-0.9
1/3VDD
-0.9
-
-
-
Limit
Typ
0.03VDD
0.1VDD
1.8
-
-
-
-
-
100
-
-
-
-
-
-
VDD-0.5
-
-
-
0.5
0.1
-
-
-
-
-
-
-
85
110
Max
-
-
2.2
VDD
VDD
VDD
0.2VDD
0.05VDD
250
6.0
5.0
-
-
-
-
VDD-0.2
0.9
0.9
0.9
1.5
0.5
1/2VDD
+0.9
1/2VDD
+0.9
2/3VDD
+0.9
1/3VDD
+0.9
2/3VDD
+0.9
1/3VDD
+0.9
15
170
210
Unit
V
V
V
V
V
V
KΩ
uA
µA
µA
V
V
V
µA
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/41
TSZ02201-0P4P0D300570-1-2
19.Mar.2015 Rev.006
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Номер в каталоге | Описание | Производители |
BU97520AKV-M | Multi-function LCD Segment Drivers | ROHM Semiconductor |
BU97520AKV-M | Multi-function LCD Segment Drivers | ROHM Semiconductor |
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