ML9484 [ROHM]

ML9484由50位移位寄存器、200位数据锁存器、50组LCD驱动器、以及公共信号生成电路组成。静态显示时可直接驱动多达50段、1/2Duty显示时可直接驱动多达100段、1/3Duty显示时可直接驱动多达150段、1/4Duty显示时可直接驱动多达200段的LCD。;
ML9484
型号: ML9484
厂家: ROHM    ROHM
描述:

ML9484由50位移位寄存器、200位数据锁存器、50组LCD驱动器、以及公共信号生成电路组成。静态显示时可直接驱动多达50段、1/2Duty显示时可直接驱动多达100段、1/3Duty显示时可直接驱动多达150段、1/4Duty显示时可直接驱动多达200段的LCD。

驱动 CD 接口集成电路 锁存器 驱动器 移位寄存器
文件: 总30页 (文件大小:308K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Dear customer  
LAPIS Semiconductor Co., Ltd. ("LAPIS Semiconductor"), on the 1st day of October,  
2020, implemented the incorporation-type company split (shinsetsu-bunkatsu) in which  
LAPIS established a new company, LAPIS Technology Co., Ltd. (“LAPIS  
Technology”) and LAPIS Technology succeeded LAPIS Semiconductor’s LSI business.  
Therefore, all references to "LAPIS Semiconductor Co., Ltd.", "LAPIS Semiconductor"  
and/or "LAPIS" in this document shall be replaced with "LAPIS Technology Co., Ltd."  
Furthermore, there are no changes to the documents relating to our products other than  
the company name, the company trademark, logo, etc.  
Thank you for your understanding.  
LAPIS Technology Co., Ltd.  
October 1, 2020  
FEDL9484-01  
Issue Date: Dec. 25, 2013  
ML9484  
Static, 1/2 Duty, 1/3 Duty, 1/4 Duty 50 Outputs LCD Driver  
GENERAL DESCRIPTION  
The ML9484 is an LCD driver LSI, consists of a 50-bit shift register, a 200-bit data latch, 50 sets of LCD drivers,  
and a common signal generation circuit.  
It can directly drive an LCD up to 50 segments for static display, 100 segments for 1/2-duty display, 150  
segments for 1/3-duty display, and 200 segments for 1/4-duty display.  
FEATURES  
Logic power supply voltage  
LCD drive power supply voltage : 4.5 to 5.5 V  
Maximum number of segments  
Static display  
1/2-duty display  
1/3-duty display  
1/4-duty display  
: 2.7 to 5.5 V  
: 50 segments  
: 100 segments  
: 150 segments  
: 200 segments  
Serially interfaces with the CPU using the three signal lines of DATA, CLOCK, and LOAD  
Selectable internal CR oscillator circuit or external clock input  
Built-in bias circuit  
Built-in common output intermediate-value voltage generation circuit  
Command-selectable A-waveform or B-waveform  
Package  
: 64-pin plastic TQFP  
1/29  
FEDL9484-01  
ML9484  
BLOCK DIAGRAM  
SEG1  
SEG50  
VLCD  
50-Dot Segment Driver  
50-Ch Data Selector  
Bias  
Resi.  
50  
50  
50  
50  
50-Bit  
Latch4  
50-Bit  
Latch3  
50-Bit  
Latch2  
50-Bit  
Latch1  
LATCH  
SELECTOR  
LOAD  
50  
DATA  
Command  
Decoder  
50-bit Shift Register  
CLOCK  
OSC I/E  
OSC  
COM1  
COM2  
COM3  
COM4  
COMMON  
Driver  
TIMING  
GENERATOR  
OSC  
RESETB  
TEST  
VDD  
GND  
2/29  
FEDL9484-01  
ML9484  
PIN CONFIGURATION (TOP VIEW)  
SEG1  
SEG2  
SEG3  
SEG4  
SEG5  
SEG6  
SEG7  
SEG8  
SEG9  
SEG10  
SEG11  
1
2
48 SEG48  
47 SEG47  
46 SEG46  
45 SEG45  
44 SEG44  
43 SEG43  
42 SEG42  
41 SEG41  
40 SEG40  
39 SEG39  
38 SEG38  
37 SEG37  
36 SEG36  
35 SEG35  
34 SEG34  
33 SEG33  
3
4
5
6
7
8
9
10  
11  
SEG12 12  
SEG13 13  
SEG14 14  
SEG15 15  
SEG16 16  
64-Pin Plastic TQFP  
3/29  
FEDL9484-01  
ML9484  
ABSOLUTE MAXIMUM RATINGS  
Item  
Symbol  
Condition  
Ta = 25°C  
Ta = 25°C  
Ta = 25°C  
Ta = 25°C  
Ta 105°C  
Rating  
-0.3 to 6.0  
-0.3 to 6.0  
– 0.3 to VDD + 0.3  
-2.0 to +2.0  
145  
Unit  
V
Logic power supply voltage  
LCD drive power supply voltage  
Input voltage  
VDD  
VLCD  
VI  
V
V
Output short-circuit current  
Power dissipation  
Is  
mA  
mW  
°C  
PD  
Storage temperature  
TSTG  
-55 to +150  
Note: Do not use the ML9484 by short-circuiting one output pin to another output pin as well as to other pin  
(input pin, input/output pin, or power supply pin).  
RECOMMENDED OPERATION CONDITIONS  
Item  
Symbol  
VDD  
Condition  
Range  
Unit  
Logic power supply voltage  
LCD drive power supply voltage  
OSC IN clock frequency  
Data clock frequency  
*
2.7 to 5.5  
4.5 to 5.5  
0.5 to 10  
V
V
VLCD  
fCP1  
fCP2  
Ta  
*
kHz  
MHz  
°C  
0.01 to 1.0  
-40 to +105  
Operating temperature  
Note(*): Use at VDD VLCD  
.
4/29  
FEDL9484-01  
ML9484  
ELECTRICAL CHARACTERISTICS  
DC Characteristics  
(VDD = 2.7 to 5.5 V, VLCD = 4.5 to 5.5 V, Ta= -40 to +105°C)  
Applicable  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
pin  
"H" input voltage  
VIH  
VIL  
IL1  
0.8VDD  
GND  
-1  
VDD  
0.2VDD  
1
V
(*1)  
(*1)  
(*2)  
"L" input voltage  
V
Input leakage current 1  
Input leakage current 2  
Pull-up current  
VI = VDD or 0 V  
μA  
μA  
μA  
IL2  
VI = VDD  
-1  
1
RESETB  
Ipu  
VDD = 5.0V,VI = 0 V  
30  
140  
RESETB  
SEG1 to  
SEG50  
Segment  
Driver  
ON resistor  
Common  
VOHS  
VOHC  
IDDS  
VLCD = 5V  
VLCD = 5V  
5
5
1
9
15  
12  
7
kΩ  
kΩ  
μA  
μA  
COM 1 to  
COM4  
V
DD=VLCD=5.5 V  
VDD  
Input pin fixed to "H" or "L"  
Oscillation stopped,  
output no-load  
Static supply current  
ILCDS  
15  
VLCD  
VDD=VLCD= 5.5 V (*3)  
Clock OSC external input  
IDD1  
ILCD1  
IDD2  
2
9
10  
15  
82  
15  
μA  
μA  
μA  
μA  
VDD  
Dynamic supply  
current 1  
VLCD  
VDD  
f
CP1=1.8kHz  
53  
9
Dynamic supply  
current 2  
V
DD=VLCD= 5.5 V (*4)  
Internal oscillation=95Hz  
ILCD2  
VLCD  
(*1): DATA, CLOCK, LOAD, RESETB, OSC, OSC I/E  
(*2): DATA, CLOCK, LOAD, OSC, OSC I/E  
(*3): 1/4-duty, 1/3-bias, OSCI/E=”L”, Output pin no-load.  
(*4): 1/4-duty, 1/3-bias, OSCI/E=”H”, (F2, F, F0) = (0, 1, 1) 95 Hz, Output pin no-load.  
5/29  
FEDL9484-01  
ML9484  
Switching Characteristics  
OSC timing  
Item  
(VDD = 2.7 to 5.5 V, VLCD = 4.5 to 5.5 V, Ta = -40 to +105°C)  
Symbol  
fCP1  
Condition  
Min.  
Typ. Max.  
Unit  
Applicable pin  
OSC IN clock frequency  
(External input)  
0.5  
1.8  
10  
kHz OSC  
Clock input from OSC.  
OSC I/E = "L"  
Clock pulse width  
(External input)  
tWCP1  
tOSC  
40  
μs  
μs  
OSC  
OSC  
Clock rise and fall time  
(External input)  
(*1)  
OSC open.  
(F2, F1, F0)=(0, 0, 1)  
OSC I/E = "H"  
Internal clock frequency  
(Internal oscillation)  
fOSC1  
18  
28.8  
44  
kHz OSC  
The relation between OSC IN clock frequency and frame frequency is as the equation below.  
fFRM = fCP1 /24  
(*1) tOSC is a reference value.  
The longer the clock rise and fall time, the more susceptible to extraneous noises around the threshold value.  
Make the rise as steep as possible. Reference value: max=2μs.  
Serial interface timing  
(VDD = 2.7 to 5.5 V, VLCD = 4.5 to 5.5 V, Ta = -40 to +105°C)  
Condition Min. Typ. Max. Unit Applicable pin  
MHz CLOCK  
Item  
Symbol  
Data clock frequency  
Data clock pulse width  
Data setup time  
fCP2  
tWCP2  
tSU  
0.01  
100  
50  
1
ns CLOCK  
ns DATA  
ns CLOCK  
ns CLOCK  
ns LOAD  
ns LOAD  
Data hold time  
tHD  
50  
CLOCK-LOAD timing  
LOAD-CLOCK timing  
LOAD pulse width  
tCL  
100  
100  
100  
tLC  
tWLD  
CLOCK,DATA,  
LOAD  
Signal rise and fall time  
tsr,tsf  
(*2)  
ns  
(*2) tsr and tsf shall be reference values.  
The longer the clock rise and fall time, the more susceptible to extraneous noises around the threshold value.  
Make the rise as steep as possible. Reference value: max=10ns.  
6/29  
FEDL9484-01  
ML9484  
Timing chart (OSC)  
1/fCP1  
tWCP1  
VIH  
tWCP1  
VIH  
VIH  
OSC  
(External clock)  
VIL  
VIL  
tOSC  
Timing chart (Serial interface)  
VIH  
VIH  
VIL  
tHD  
VIH  
VIH  
DATA  
VIL  
VIL  
VIL  
tSU  
tsf  
tsr  
tWCP2  
tWCP2  
VIH  
VIL  
VIH  
VIH  
VIH  
CLOCK  
VIL  
VIL  
VIL  
VIL  
1/fCP2  
tsr  
tCL  
tWLD  
tLC  
tsf  
V
IH VIH  
LOAD  
VIL  
VIL  
tsr  
tsf  
7/29  
FEDL9484-01  
ML9484  
POWER ON/OFF TIMING  
To turn on the power supply, raise the logic power supply first, then LCD drive power supply in order to prevent  
the IC from malfunctioning.  
To fall the power supply, fall the LCD drive power supply first, then the logic power supply.  
For a VDD pin ranging from 0 V to VDDmin, set VDD VLCD and t1 0 [ns].  
Voltage  
VLCD  
VDD  
t1  
t1  
Time  
INITIALIZATION SIGNAL TIMING  
Keep the RESETB pin at "L" level until the VDD reaches VDD min. (t2 200[ns])  
VDD  
VDD min  
RESETB  
VIL  
t2  
The value of the current of the pull-up resistor is specified for RESETB pin.  
The customer needs to select an external capacitor that meets the timing requirements shown above.  
8/29  
FEDL9484-01  
ML9484  
PIN DESCRIPTIONS  
Pad  
Symbol  
number  
I/O  
O
Description  
SEG1 to  
1 to 50  
Outputs for LCD display. Connected to the segment pins on the LCD panel.  
In the display off mode, all the outputs are fixed to GND.  
Outputs for LCD display. Connected to the common pins on the LCD panel.  
In the display off mode, all the outputs are fixed to GND.  
Power supply pin for LCD driver.  
SEG50  
COM1 to  
51 to 54  
O
COM4  
55  
56  
VLCD  
VDD  
-
-
Power supply pin for logic circuit.  
This input selects whether to use the external clock input mode or to use the  
Internal oscillation mode. It has a schmitt circuit.  
When this pin is "H", the mode is the Internal Rf oscillation mode.  
When this pin is "L", the mode is the external clock input mode.  
IC test pin. Has a pull-down resistor built-in.  
57  
OSC I/E  
I
58  
59  
TEST  
GND  
I
Use it as it is connected to GND.  
-
Ground pin.  
Pin for oscillation. Has a Schmitt circuit built-in.  
Internal Rf oscillation mode: Set the OSCI/E pin to "H", open the OSC pin.  
External clock input mode: Set the OSCI/E pin to "L", input the external clock  
to the OSC pin.  
60  
61  
OSC  
I
I
Reset signal input pin for initializing inside the IC. It has a schmitt circuit.  
The "L" level enables the reset. This pin has an Internal pull-up resistor.  
The power-on reset operation is available by connecting an external  
capacitor. *1  
RESETB  
Input pin for the load signal of display data. It has a schmitt circuit.  
The display data in the shift register is transmitted as is to the segment driver  
for the "H" duration. When this pin is brought into "L", the shift register is  
disconnected from the segment driver. The display data in the shift register  
immediately before it become "L" is held in the data latch and transmitted to  
the segment driver.  
62  
LOAD  
I
Shift clock input pin for display data. It has a schmitt circuit.  
The display data input to the DATA pin is serially input to the shift register at  
the CLOCK signal rise.  
63  
64  
CLOCK  
DATA  
I
I
Display data input pin. It has a schmitt circuit.  
Input the display data in the order of SEG50, SEG49, ... , SEG2, and SEG1.  
The display data turns on at "H" and turns off at "L".  
*1: Reset circuit configuration  
VDD  
RESETB  
CRST  
9/29  
FEDL9484-01  
ML9484  
DESCRIPTION  
Operation description  
• Display data input  
As described in the Data configuration section, the display data consists of the data field that corresponds to  
each segment on/off and the command field that indicates the display data input.  
When inputting the display data, the "F1" command is set in the command field. When the "F2" to "F5"  
command is set in the command field, the display data in the data field becomes invalid.  
The data input to the DATA pin is loaded to the shift register at the CLOCK pulse rise, transferred to the  
display data latch during the LOAD pulse at the "H" level, then output via the segment driver.  
CLOCK  
DATA  
D1 D2 D3 D4  
Data field  
D48 D49 D50 C0 C1 C2 C3 C4 C5  
Command field  
LOAD  
Display output  
New data  
Old data  
• Display on, Display off  
The display becomes off at power-on reset. To display, write the display on command.  
The display off is the command that makes all segments off. Writing the display off command turns off the  
lights regardless of the display data.  
The display on is the command to release the display off. Writing the display on command returns the display  
to the original state.  
CLOCK  
DATA  
D1 D2  
C4 C5  
C2 C3 C4 C5  
C2 C3 C4 C5  
LOAD  
Display ON/OFF  
RESETB  
Display data input  
Write Display OFF  
command  
Write display ON  
command  
10/29  
FEDL9484-01  
ML9484  
List of Commands  
Command  
C5  
C4  
0
C3  
0
C2  
x
C1  
x
C0  
x
Operation  
name  
Disabled  
F0  
0
Data write address setting  
(Co1,Co0)=(0, 0): Corresponding to common 1  
(Co1,Co0)=(0, 1): Corresponding to common 2  
(Co1,Co0)=(1, 0): Corresponding to common 3  
(Co1,Co0)=(1, 1): Corresponding to common 4  
Frame frequency setting  
F1  
0
0
1
Co1  
Co0  
x
(F2, F1, F0)=(0, 0, 0): 65Hz  
(F2, F1, F0)=(0, 0, 1): 75Hz  
(F2, F1, F0)=(0, 1, 0): 85Hz  
(F2, F1, F0)=(0, 1, 1): 95Hz  
(F2, F1, F0)=(1, 0, 0): 130Hz  
(F2, F1, F0)=(1, 0, 1): 150Hz  
(F2, F1, F0)=(1, 1, 0): 170Hz  
(F2, F1, F0)=(1, 1, 1): 190Hz  
(valid for Internal CR oscillation)  
LCD Bias setting  
0
1
0
F2  
(0)  
F1  
(0)  
F0  
(0)  
F2  
BIAS="0" : 1/3-bias  
0
1
1
BIAS WSEL  
x
BIAS="1" : 1/2-bias  
F3  
(0)  
(0)  
LCD Driving Waveform setting  
WSEL="0" : A-Waveform  
WSEL="1" : B-Waveform  
Display Duty setting  
(D1, D0)=(0, 0): Static  
(COM1=COM2=COM3=COM4)  
(D1, D0)=(0, 1): 1/2-duty  
(COM1=COM3, COM2=COM4)  
(D1, D0)=(1, 0): 1/3-duty  
(COM2=COM4)  
(D1, D0)=(1, 1): 1/4-duty  
1
1
0
0
0
1
D1  
(0)  
D0  
(0)  
x
x
F4  
F5  
Display on/off setting  
DSP="0" : Off COM=SEG=GND)  
DSP="1" : On  
DSP  
(0)  
x
Disabled  
F6  
F7  
1
1
1
1
0
1
x
x
x
x
x
x
Disabled  
x: Don't care  
( ): Reset Value  
11/29  
FEDL9484-01  
ML9484  
Data configuration  
[Input data]  
First bit  
Corresponding to SEG50  
Corresponding to SEG1  
C5  
C4  
C3  
C2  
C1  
C0  
D50  
D49  
D48  
D3  
D2  
D1  
LCD display data  
Command  
Note 1: The commands F4 settings become valid when the least four bits of C2 to C5 are input.  
(The bits from D1 to D50 and from C0 to C1 are not necessary.)  
The commands F3 and F4 settings become valid when the least five bits of C1 to C5 are input.  
(The bits from D1 to D50 and from C0 are not necessary.)  
The commands F2 settings become valid when the least six bits of C0 to C5 are input.  
(The bits from D1 to D50 are not necessary.)  
Note 2: If the dummy bit is needed for the reason of number of transfer bits, put it on the first bit side.  
Note 3: The command execution follows the contents of the C5 to C0 registers immediately before the LOAD  
becomes "H".  
12/29  
FEDL9484-01  
ML9484  
LCD Driving Waveform  
• Static mode (same as A-waveform and B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
ON  
COM1  
OFF  
fFRM  
VLCD  
COM1  
COM2  
COM3  
COM4  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
13/29  
FEDL9484-01  
ML9484  
• 1/2-duty, 1/2-bias mode (A-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
ON  
OFF  
fFRM  
VLCD  
COM1  
COM3  
VLCD/2  
GND  
VLCD  
COM2  
COM4  
VLCD/2  
GND  
VLCD  
SEG1  
SEG2  
SEG3  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
14/29  
FEDL9484-01  
ML9484  
• 1/2-duty, 1/3-bias mode (A-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM1  
COM3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM2  
COM4  
VLCD  
2VLCD/3  
VLCD/3  
GND  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
15/29  
FEDL9484-01  
ML9484  
• 1/3-duty, 1/2-bias mode (A-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
ON  
OFF  
fFRM  
VLCD  
COM1  
VLCD/2  
GND  
VLCD  
COM2  
COM4  
VLCD/2  
GND  
VLCD  
COM3  
VLCD/2  
GND  
VLCD  
SEG1  
SEG2  
SEG3  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
16/29  
FEDL9484-01  
ML9484  
• 1/3-duty, 1/3-bias mode (A-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
COM1  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM2  
COM4  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
17/29  
FEDL9484-01  
ML9484  
• 1/4-duty, 1/2-bias mode (A-waveform)  
S
E
G
1
S
S
E
G
3
E
G
2
COM1  
COM2  
COM3  
COM4  
ON  
OFF  
fFRM  
VLCD  
VLCD/2  
GND  
COM1  
COM2  
COM3  
COM4  
SEG1  
SEG2  
SEG3  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
18/29  
FEDL9484-01  
ML9484  
• 1/4-duty, 1/3-bias mode (A-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
COM4  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM1  
COM2  
COM3  
COM4  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
19/29  
FEDL9484-01  
ML9484  
• 1/2-duty, 1/2-bias mode (B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
ON  
OFF  
fFRM  
VLCD  
COM1  
COM3  
VLCD/2  
GND  
VLCD  
COM2  
COM4  
VLCD/2  
GND  
VLCD  
SEG1  
SEG2  
SEG3  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
20/29  
FEDL9484-01  
ML9484  
• 1/2-duty, 1/3-bias mode (B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM1  
COM3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM2  
COM4  
VLCD  
2VLCD/3  
VLCD/3  
GND  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
21/29  
FEDL9484-01  
ML9484  
• 1/3-duty, 1/2-bias mode (B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
ON  
OFF  
fFRM  
VLCD  
COM1  
VLCD/2  
GND  
VLCD  
COM2  
COM4  
VLCD/2  
GND  
VLCD  
COM3  
VLCD/2  
GND  
VLCD  
SEG1  
SEG2  
SEG3  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
22/29  
FEDL9484-01  
ML9484  
• 1/3-duty, 1/3-bias mode (B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
COM1  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM2  
COM4  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
23/29  
FEDL9484-01  
ML9484  
• 1/4-duty, 1/2-bias mode (B-waveform)  
S
E
G
1
S
S
E
G
3
E
G
2
COM1  
COM2  
COM3  
COM4  
ON  
OFF  
fFRM  
VLCD  
VLCD/2  
GND  
COM1  
COM2  
COM3  
COM4  
SEG1  
SEG2  
SEG3  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
VLCD  
VLCD/2  
GND  
24/29  
FEDL9484-01  
ML9484  
• 1/4-duty, 1/3-bias mode (B-waveform)  
S
E
G
1
S
E
G
2
S
E
G
3
COM1  
COM2  
COM3  
COM4  
ON  
OFF  
fFRM  
VLCD  
2VLCD/3  
VLCD/3  
GND  
COM1  
COM2  
COM3  
COM4  
SEG1  
SEG2  
SEG3  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
VLCD  
2VLCD/3  
VLCD/3  
GND  
25/29  
FEDL9484-01  
ML9484  
EXAMPLE OF APPLICATION CIRCUIT  
COM1  
COM2  
COM3  
COM4  
1/4 Duty LCD Panel  
SEG1  
SEG50  
SEG50  
SEG1  
COM1  
COM2  
COM3  
COM4  
VLCD  
LOAD  
DATA  
+5 V  
+5 V  
ML9484  
CPU  
CLOCK  
VDD  
OSCI/E  
GND  
Open  
OSC  
RESETB  
TEST  
REFRESH  
Although the ML9484 holds operation state by commands, excessive external noise might change the  
internal state.  
On a chip-mounting and system level, it is necessary to take countermeasures against preventing noise from  
occurring. It is recommended to use the refresh sequence periodically to control sudden noise.  
26/29  
FEDL9484-01  
ML9484  
PACKAGE DIMENSIONS  
Notes for Mounting the Surface Mount Type Package  
The surface mount type packages are very susceptible to heat in reflow mounting and humidity absorbed in  
storage. Therefore, before you perform reflow mounting, contact ROHM’s responsible sales person for the  
product name, package name, pin number, package code and desired mounting conditions (reflow method,  
temperature and times).  
27/29  
FEDL9484-01  
ML9484  
REVISION HISTORY  
Page  
Previous  
Document No.  
FEDL9484-01  
Issue Date  
Description  
New  
Edition  
Edition  
Dec .25, 2013  
Final edition 1 issued  
28/29  
FEDL9484-01  
ML9484  
NOTES  
No copying or reproduction of this document, in part or in whole, is permitted without the consent of LAPIS  
Semiconductor Co., Ltd.  
The content specified herein is subject to change for improvement without notice.  
The content specified herein is for the purpose of introducing LAPIS Semiconductor's products (hereinafter  
"Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be  
obtained from LAPIS Semiconductor upon request.  
Examples of application circuits, circuit constants and any other information contained herein illustrate the  
standard usage and operations of the Products. The peripheral conditions must be taken into account when  
designing circuits for mass production.  
Great care was taken in ensuring the accuracy of the information specified in this document. However, should  
you incur any damage arising from any inaccuracy or misprint of such information, LAPIS Semiconductor shall  
bear no responsibility for such damage.  
The technical information specified herein is intended only to show the typical functions of and examples of  
application circuits for the Products. LAPIS Semiconductor does not grant you, explicitly or implicitly, any  
license to use or exercise intellectual property or other rights held by LAPIS Semiconductor and other parties.  
LAPIS Semiconductor shall bear no responsibility whatsoever for any dispute arising from the use of such  
technical information.  
The Products specified in this document are intended to be used with general-use electronic equipment or  
devices (such as audio visual equipment, office-automation equipment, communication devices, electronic  
appliances and amusement devices).  
The Products specified in this document are not designed to be radiation tolerant.  
While LAPIS Semiconductor always makes efforts to enhance the quality and reliability of its Products, a  
Product may fail or malfunction for a variety of reasons.  
Please be sure to implement in your equipment using the Products safety measures to guard against the  
possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as  
derating, redundancy, fire control and fail-safe designs. LAPIS Semiconductor shall bear no responsibility  
whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction  
manual.  
The Products are not designed or manufactured to be used with any equipment, device or system which requires  
an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human  
life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace  
machinery, nuclear-reactor controller, fuel-controller or other safety device). LAPIS Semiconductor shall bear  
no responsibility in any way for use of any of the Products for the above special purposes. If a Product is  
intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing.  
If you intend to export or ship overseas any Product or technology specified herein that may be controlled under  
the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the  
Law.  
Copyright 2013 LAPIS Semiconductor Co., Ltd.  
29/29  

相关型号:

ML961B8S

Laser Diode, 1480nm
MITSUBISHI

ML9620

CAN Controller IC
OKI

ML9701A

Laser Diode, 1580nm
MITSUBISHI

ML974A1F

Laser Diode, 1550nm
MITSUBISHI

ML974A2F

Laser Diode, 1550nm
MITSUBISHI

ML974F11F

Laser Diode, 1550nm
MITSUBISHI

ML976H10

InGaAsP-MQW HIGH POWER LASER DIODES
MITSUBISHI

ML976H11F

InGaAsP-MQW-DFB LASER DIODES
MITSUBISHI

ML976H6F

InGaAsP-MQW-FP LASER DIODES
MITSUBISHI

ML9781A

Laser Diode, 1550nm
MITSUBISHI

ML9783F

Laser Diode, 1550nm
MITSUBISHI

ML97CS

Rectangular Connector Adapter, 9 Contacts(Side1), 9 Contacts(Side2), Panel Mount, Female-Female
MOLEX