LC75890E [SANYO]

1/4duty and Static Drive General-Purpose LCD Display Drivers; 1 / 4duty和静态驱动通用液晶显示驱动器
LC75890E
型号: LC75890E
厂家: SANYO SEMICON DEVICE    SANYO SEMICON DEVICE
描述:

1/4duty and Static Drive General-Purpose LCD Display Drivers
1 / 4duty和静态驱动通用液晶显示驱动器

显示驱动器 CD
文件: 总32页 (文件大小:280K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Ordering number : ENA1971A  
CMOS IC  
1/4duty and Static Drive  
General-Purpose  
LCD Display Drivers  
LC75890W  
LC75890E  
Overview  
The LC75890W and LC75890E are 1/4 duty and static drive general-purpose LCD display drivers that can be used  
for displaying segments for household appliances, home audio visual products, portable devices and other such  
products under the control of a microcontroller.The LC75890W can drive up to 148 segments directly, and the  
LC75890E can drive up to 132 segments directly. In addition the LC75890W can control up to 12 general-purpose  
output ports, and the LC75890E can control up to 11 general-purpose output ports. They can control the brightness of  
the LED backlight of RGB, because they have the PWM output of greatest 3CH built-in. Incorporation of the  
oscillation circuit helps to reduce the number of external resistors and capacitors required. Incorporation of the LCD  
drive bias voltage stabilization circuit helps to reduce the capacitors for the LCD drive bias voltage stabilization.  
Features  
Support for 1/4-duty 1/3-bias or static drive techniques under serial data control.  
<LC75890W(SQFP48)>  
When 1/4-duty drive : Capable of driving up to 148 segments  
When Static drive : Capable of driving up to 37 segments  
<LC75890E(QIP44M)>  
When 1/4-duty drive : Capable of driving up to 132 segments  
When Static drive : Capable of driving up to 33 segments  
Support for display segment on, off, or blinking for each segment output pin under serial data control.  
Continued on next page.  
CCB is a registered trademark of SANYO Semiconductor Co., Ltd.  
CCB is SANYO Semiconductor's original bus format. All bus addresses are managed by SANYO  
Semiconductor for this format.  
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to  
"standard application", intended for the use as general electronics equipment. The products mentioned herein  
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,  
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,  
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives  
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any  
guarantee thereof. If you should intend to use our products for new introduction or other application different  
from current conditions on the usage of automotive device, communication device, office equipment, industrial  
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the  
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely  
responsible for the use.  
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate  
the performance, characteristics, and functions of the described products in the independent state, and are not  
guarantees of the performance, characteristics, and functions of the described products as mounted in the  
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent  
device, the customer should always evaluate and test devices mounted in the customer  
's products or  
equipment.  
30712HKPC /O2611HKPC 20110711-S00002, 20110712-S00002, S00003 No.A1971-1/32  
LC75890W, LC75890E  
Continued from preceding page.  
Serial data control of the power-saving mode based backup function and the all segments forced off function.  
Serial data control of switching between the segment output port and general-purpose output port function.  
<LC75890W : Support for up to 12 general-purpose output ports>  
<LC75890E : Support for up to 11 general-purpose output ports>  
Support for the PWM output function of a maximum of 3ch. (It can output from the general-purpose output port ).  
Serial data control of the frame frequency of the common and segment output waveforms.  
Serial data control of the segment blinking frequency.  
Serial data control of switching between the internal oscillator operating mode and external clock operating mode.  
Serial data input supports CCB format communication with the system controller.  
Independent V  
for the LCD driver block.  
LCD  
Built-in LCD drive bias voltage stabilization circuit.  
The INH pin allows the display to be forced to the off state.  
Incorporation of an oscillator circuit. (Incorporation of resistor and capacitor for an oscillation)  
No.A1971-2/32  
LC75890W, LC75890E  
Specifications  
Absolute Maximum Ratings at Ta = 25°C, V = 0V  
SS  
Parameter  
Symbol  
Conditions  
Ratings  
-0.3 to +4.2  
Unit  
V
Maximum supply voltage  
V
max  
V
V
DD  
DD  
V
max  
1
-0.3 to +6.5  
-0.3 to +4.2  
LCD  
V
LCD  
Input voltage  
CE, CL, DI,  
INH  
IN  
V
V
2
OSCI : External clock operating mode  
S1 to S37, COM1 to COM4, P1 to P12 *1  
S1 to S36 *1  
-0.3 to V +0.3  
DD  
IN  
Output voltage  
Output current  
V
-0.3 to V  
+0.3  
300  
3
V
OUT  
LCD  
I
1
2
3
μA  
OUT  
OUT  
OUT  
I
I
COM1 to COM4, S37  
mA  
P1 to P12 *1 *2  
5
Allowable power dissipation  
Pd max1  
Pd max2  
Topr  
LC75890W(SQFP48) Ta=85°C  
100  
100  
mW  
LC75890E(QIP44M)  
Ta=85°C  
Operating temperature  
Storage temperature  
-40 to +85  
°C  
°C  
Tstg  
-55 to +125  
Note : *1 In the case of the LC75890E(QIP44M), the output pins are effective for only S1 to S11, S13 to S23, S25 to  
S34, and S37 pins.  
*2 The sum of output current through P1 to P12 must be 40mA or less.  
Allowable Operating Ranges at Ta = -40 to +85°C, V = 0V  
SS  
Ratings  
typ  
Parameter  
Supply voltage  
Symbol  
Conditions  
Unit  
V
min  
2.7  
max  
3.6  
V
V
V
V
DD  
DD  
V
: Internal oscillator operating mode  
: External clock operating mode  
2.7  
5.5  
5.5  
3.6  
LCD  
LCD  
V
0.7V  
0.7V  
LCD  
DD  
Input high-level voltage  
Input low-level voltage  
V
V
1
2
1
2
CE, CL, DI,  
INH  
OSCI: External clock operating mode  
CE, CL, DI,  
IH  
DD  
V
V
V
0.2V  
0.2V  
IH  
DD  
0
DD  
DD  
DD  
V
V
f
INH  
IL  
OSCI: External clock operating mode  
0
10  
30  
IL  
External clock operating frequency  
External clock duty cycle  
Data setup time  
OSCI: External clock operating mode [Figure 3]  
OSCI: External clock operating mode [Figure 3]  
38  
600  
70  
kHz  
%
CK  
D
50  
CK  
tds  
CL, DI  
CL, DI  
CE, CL  
CE, CL  
CE, CL  
CL  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 1][Figure 2]  
[Figure 4][Figure 5]  
160  
160  
160  
160  
160  
160  
160  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
μs  
Data hold time  
tdh  
tcp  
tcs  
tch  
tφH  
tφL  
tr  
CE wait time  
CE setup time  
CE hold time  
High-level clock pulse width  
Low-level clock pulse width  
Rise time  
CL  
CE, CL, DI  
CE, CL, DI  
INH  
160  
160  
Fall time  
tf  
switching time  
tc  
10  
INH  
No.A1971-3/32  
LC75890W, LC75890E  
Electrical Characteristics for the Allowable Operating Ranges  
Ratings  
typ  
Parameter  
Symbol  
Pin  
Conditions  
Unit  
V
min  
max  
Hysteresis  
V
H
CE, CL, DI,  
CE, CL, DI,  
OSCI  
0.1V  
INH  
INH  
DD  
Input high-level current  
Input low-level current  
Output high-level voltage  
I
I
1
2
V = 3.6V  
1.0  
1.0  
IH  
IH  
I
μA  
V = V : External clock operating mode  
DD  
I
I
1
2
CE, CL, DI,  
OSCI  
V = 0V  
I
-1.0  
INH  
IL  
IL  
μA  
I
V = 0V: External clock operating mode  
I
-1.0  
-0.9  
V
1
S1 to S37 *3  
I
= -10μA  
V
OH  
OH  
O
O
LCD  
V
2
COM1  
I
= -100μA  
V
V
-0.9  
LCD  
LCD  
to COM4  
P1 to P12 *3  
V
3
1
2
I
I
I
= -1mA  
= 10μA  
= 100μA  
V
-0.9  
OH  
O
O
O
Output low-level voltage  
V
S1 to S37 *3  
0.9  
OL  
OL  
V
COM1  
V
0.9  
0.9  
to COM4  
P1 to P12 *3  
V
3
I
=1mA  
OL  
O
Output middle-level  
voltage  
V
V
V
V
1
2
3
4
S1 to S37 *3  
1/4 duty I = ±10μA  
2/3V  
1/3V  
2/3V  
1/3V  
2/3V  
1/3V  
2/3V  
1/3V  
MID  
MID  
MID  
MID  
O
LCD  
-0.9  
LCD  
+0.9  
S1 to S37 *3  
1/4 duty I = ±10μA  
O
LCD  
-0.9  
LCD  
+0.9  
V
COM1  
1/4 duty I = ±100μA  
O
LCD  
-0.9  
LCD  
+0.9  
to COM4  
COM1  
1/4 duty I = ±100μA  
O
LCD  
-0.9  
LCD  
+0.9  
to COM4  
Internal  
Oscillator frequency  
Current drain  
fosc  
Internal oscillator operating mode  
240  
300  
360  
2
kHz  
oscillator circuit  
I
1
V
Power-saving mode  
DD  
DD  
I
2
V
V
= 3.3V, Normal mode,  
DD  
DD  
DD  
External clock operating mode *4  
= 3.3V, Normal mode,  
5
90  
10  
180  
100  
270  
I
3
V
V
DD  
DD  
DD  
External clock operating mode *4  
Serial data transfer *5  
I
I
4
5
V
V
= 3.3V, Normal mode,  
DD  
DD  
DD  
Internal oscilloator operating mode  
= 3.3V, Normal mode,  
50  
V
V
DD  
DD  
DD  
Internal oscilloator operating mode,  
135  
μA  
Serial data transfer *5  
I
I
1
2
V
Power-saving mode  
2
LCD  
LCD  
V
V
= 3.3V, Output open,  
LCD  
LCD  
LCD  
Normal mode, Static drive  
= 3.3V, Output open,  
8
70  
10  
90  
16  
I
I
I
3
4
5
V
V
LCD  
LCD  
LCD  
LCD  
LCD  
Normal mode, 1/4 duty drive  
= 5.0V, Output open,  
140  
20  
V
V
LCD  
LCD  
Normal mode, Static drive  
= 5.0V, Output open,  
V
V
LCD  
LCD  
Normal mode, 1/4 duty drive  
180  
Note : *3 In the case of the LC75890E(QIP44M), the output pins are effective for only S1 to S11, S13 to S23, S25 to  
S34, and S37 pins.  
*4 External clock operating mode (f =38kHz, V 2=V , V 2=0V, rise/fall time=20ns)  
CK IH DD IL  
*5 Serial data transfer (data transfer frequency 2MHz, V 1=V , V 1=0V, rise/fall time=20ns)  
IH DD IL  
No.A1971-4/32  
LC75890W, LC75890E  
1. When CL is stopped at the low level  
V
1
IH  
CE  
V
1
IL  
tφL  
tφH  
V
50%  
V
1
IH  
CL  
DI  
1
IL  
tf  
tr  
tcp tcs  
tch  
V
V
1
IH  
1
IL  
tds  
tdh  
[Figure 1]  
2. When CL is stopped at the high level  
V
1
IH  
CE  
V
1
IL  
tφL  
tφH  
V
1
IH  
50%  
IL  
CL  
DI  
V
1
tf  
tr  
tcp tcs  
tch  
V
1
IH  
V
1
IL  
tds  
tdh  
[Figure 2]  
3. OSCI pin clock timing in external clock operating mode  
1
t
H
t
L
f =  
CK  
[kHz]  
CK  
CK  
t
H + t  
L
CK  
CK  
V
50%  
V
2
IH  
t
H
CK  
H + t  
OSCI  
2
D
CK  
=
× 100[%]  
L
IL  
t
CK  
CK  
[Figure 3]  
No.A1971-5/32  
LC75890W, LC75890E  
Package Dimensions  
unit : mm (typ)  
3163B  
9.0  
7.0  
36  
25  
24  
13  
37  
48  
1
12  
0.5  
0.15  
0.18  
(0.75)  
SANYO : SQFP48(7X7)  
Pin Assignment  
36  
37  
25  
24  
COM4  
COM3  
S24  
S23  
S22  
S21  
S20  
S19  
S18  
S17  
S16  
S15  
S14  
S13  
COM2  
COM1  
OSCI/S37  
V
LC75890W  
SQFP48(7×7)  
DD  
V
LCD  
V
SS  
INH  
CE  
CL  
DI  
48  
1
13  
12  
Top view  
No.A1971-6/32  
LC75890W, LC75890E  
Package Dimensions  
unit : mm (typ)  
3148A  
13.2  
10.0  
44  
1
0.8  
0.35  
0.2  
(1.0)  
SANYO : QIP44M(10X10)  
Pin Assignment  
33  
34  
23  
22  
COM3  
S23  
S22  
S21  
S20  
S19  
S18  
S17  
S16  
S15  
S14  
S13  
COM2  
COM1  
OSCI/S37  
V
DD  
LC75890E  
QIP44M(10×10)  
V
LCD  
V
SS  
INH  
CE  
CL  
DI  
44  
1
12  
11  
Top view  
No.A1971-7/32  
LC75890W, LC75890E  
Block Diagram  
COMMON  
DRIVER  
SEGMENT DRIVER & LATCH  
INH  
CLOCK  
GENERATOR  
OSCI/S37  
CONTROL  
REGISTER  
V
DD  
V
LCD  
SHIFT REGISTER  
LCD DRIVE BIAS  
VOLTAGE  
STABILIZATION  
CIRCUIT  
2/3V  
1/3V  
CCB INTERFACE  
LCD  
LCD  
V
SS  
No.A1971-8/32  
LC75890W, LC75890E  
Pin Functions  
Pin No.  
Handling  
when  
Symbol  
Function  
Active  
I/O  
LC75890W  
LC75890E  
unused  
(SQFP48)  
1
(QIP44M)  
1
S1/P1  
S2/P2  
S3/P3  
S4/P4  
S5/P5  
S6/P6  
S7/P7  
S8/P8  
S9/P9  
S10/P10  
S11/P11  
S12/P12  
S13  
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
10  
11  
-
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
-
S14  
Segment outputs for displaying the display data  
transferred by serial data input.  
S15  
S16  
The S1/P1 to S12/P12 pins can be used as general-  
purpose output ports under serial data control.  
S17  
S18  
-
O
OPEN  
S19  
Note :  
S20  
In the case of the LC75890E (QIP44M), the output pins  
are effective for only S1 to S11, S13 to S23, and S25 to  
S34 pins.  
S21  
S22  
S23  
S24  
S25  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
-
S26  
S27  
S28  
S29  
S30  
S31  
S32  
S33  
S34  
S35  
S36  
-
COM4  
COM3  
COM2  
COM1  
33  
34  
35  
36  
Common driver outputs The frame frequency is fo[Hz].  
-
O
OPEN  
OPEN  
Segment output.  
This pin can also be used as the external clock input pin  
when the external clock operating mode is selected by  
control data.  
S37/OSCI  
41  
37  
-
I/O  
Serial data transfer inputs. Must be connected to the  
controller.  
CE  
CL  
DI  
46  
47  
48  
42  
43  
44  
H
I
I
I
GND  
CE : Chip enable  
CL : Synchronization clock  
DI : Transfer data  
-
Continued on next page.  
No.A1971-9/32  
LC75890W, LC75890E  
Continued from preceding page.  
Pin No.  
Handling  
when  
Symbol  
Function  
Active  
I/O  
LC75890W  
(SQFP48)  
LC75890E  
(QIP44M)  
unused  
Display off control input  
• INH = low (V ) ...Display forced off  
SS  
S1/P1 to S12/P12=low (V  
)
SS  
(These pins are forcibly set to the general-purpose  
output port function and held at the V level.)  
SS  
S13 to S36=low (V  
)
SS  
COM1 to COM4=low (V  
)
SS  
S37/OSCI=low (V  
)
SS  
(This pin is forcibly set to the segment output port  
function and held at the V level.)  
SS  
INH  
45  
41  
LCD drive bias voltage stabilization circuit stopped.  
Stops the internal oscillator.  
L
I
GND  
Inhibits external clock input.  
• INH = high (V ) ...Display on  
DD  
LCD drive bias voltage stabilization circuit is enabled.  
Enables the internal oscillator circuit.  
(Internal oscillator operating mode)  
Enables external clock input.  
(External clock operating mode)  
However, serial data transfer is possible when the  
display is forced off.  
Logic block power supply pin. A power voltage of 2.7 to  
3.6V must be applied to this pin.  
V
42  
38  
-
-
-
DD  
LCD driver block power supply pin. A power voltage of  
2.7 to 5.5V must be applied to this pin.  
V
43  
44  
39  
40  
-
-
-
-
-
-
LCD  
V
Ground pin. Must be connected to ground.  
SS  
No.A1971-10/32  
LC75890W, LC75890E  
Serial Data Input  
1. 1/4 duty drive  
(1) When CL is stopped at the low level  
• Display data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D1 D2 D3 D4  
D49 D50 D51 D52  
D97 D98 D99 D100  
D29 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48  
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Display data  
48 bits  
Fixed data  
5 bits  
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D77 D78 D79 D80 D81 D82 D83 D84 D85 D86 D87 D88 D89 D90 D91 D92 D93 D94 D95 D96  
0
0
0
0
0
0
1
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Display data  
48 bits  
Fixed data  
5 bits  
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 D142 D143 D144 D145 D146 D147 D148  
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Display data  
DD  
Fixed  
data  
1 bits  
52 bits  
3 bits  
• Control data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
BD1 BD2 BD3 BD4 BD5 BD6 BD7 BD8 BD9  
BD10 BD11  
BD12 BD13 BD14 BD15 BD16  
BD17 BD18 BD19 BD20 BD21  
BD22 BD23 BD24 BD25 BD26 BD27 BD28  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Control data  
53 bits  
BD29 BD30 BD31  
BD32  
BD33 BD34  
BD35  
BD36  
BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1
1
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
W10 W11 W12 W13 W14 W15 W20 W21 W22  
W23 W24  
W25 W30 W31 W32 W33  
W34 W35 PF0 PF1 PF2  
PF3 P1A P1B P2A P2B P3A P3B  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Control data  
53 bits  
P4A P4B P5A  
P5B  
P6A P6B  
P7A  
P7B  
P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
DD  
3 bits  
Note: DD is the direction data.  
No.A1971-11/32  
LC75890W, LC75890E  
(2) When CL is stopped at the high level  
• Display data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D1 D2 D3 D4  
D49 D50 D51 D52  
D97 D98 D99 D100  
D29 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48  
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Display data  
48 bits  
Fixed data  
5 bits  
DD  
8 bits  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D77 D78 D79 D80 D81 D82 D83 D84 D85 D86 D87 D88 D89 D90 D91 D92 D93 D94 D95 D96  
0
0
0
0
0
0
1
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Display data  
48 bits  
Fixed data  
5 bits  
DD  
8 bits  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 D142 D143 D144 D145 D146 D147 D148  
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Display data  
DD  
Fixed  
data  
1 bits  
8 bits  
52 bits  
3 bits  
• Control data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
BD1 BD2 BD3 BD4 BD5 BD6 BD7 BD8 BD9  
BD10 BD11  
BD12 BD13 BD14 BD15 BD16  
BD17 BD18 BD19 BD20 BD21  
BD22 BD23 BD24 BD25 BD26 BD27 BD28  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Control data  
53 bits  
8 bits  
BD29 BD30 BD31  
BD32  
BD33 BD34  
BD35  
BD36  
BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1
1
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
W10 W11 W12 W13 W14 W15 W20 W21 W22  
W23 W24  
W25 W30 W31 W32 W33  
W34 W35 PF0 PF1 PF2  
PF3 P1A P1B P2A P2B P3A P3B  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Control data  
53 bits  
8 bits  
P4A P4B P5A  
P5B  
P6A P6B  
P7A  
P7B  
P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
DD  
3 bits  
Note: DD is the direction data.  
No.A1971-12/32  
LC75890W, LC75890E  
• CCB address ......................... “50H”  
• D1 to D148 ........................... Display data  
Note : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D44, D49 to D92,  
D97 to D136, and D145 to D148.  
• BD1 to BD37 ........................ Display blinking control data of each segment output pin  
Note : In the case of the LC75890E(QIP44M), the control data are effective for only BD1 to BD11, BD13 to BD23,  
BD25 to BD34, and BD37.  
• BF0 to BF2 ........................... Segment blinking frequency setting control data  
• FC0 to FC2 ........................... Common/segment output waveform frame frequency setting control data  
• DT ........................................ 1/4-duty 1/3-bias drive or static drive switching control data  
• EXF ...................................... External clock operating frequency setting control data  
• OC ........................................ Internal oscillator operating mode/external clock operating mode switching control data  
• SC ......................................... Segment on/off control data  
• BU ........................................ Normal mode/power-saving mode control data  
• W10 to W15, W20 to W25,... PWM data of the PWM output  
W30 to W35  
• PF0 to PF3 ............................ PWM output waveform frame frequency setting control data  
• P1A, P1B to P12A, P12B ..... General-purpose output function/PWM output function switiching control data of the  
general-purpose output port  
Note : In the case of the LC75890E(QIP44M), the control data are effective for only P1A, P1B to P11A, P11B.  
• P0 to P3 ................................ Segment output port/general-purpose output port switching control data  
2. Static drive  
(1) When CL is stopped at the low level  
• Display data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D1 D2 D3 D4  
D29 D30 D31 D32 D33 D34 D35 D36 D37  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Display data  
37 bits  
Fixed data  
16 bits  
DD  
3 bits  
• Control data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
BD1 BD2 BD3 BD4 BD5 BD6 BD7 BD8 BD9  
BD10 BD11  
BD12 BD13 BD14 BD15 BD16  
BD17 BD18 BD19 BD20 BD21  
BD22 BD23 BD24 BD25 BD26 BD27 BD28  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Control data  
53 bits  
BD29 BD30 BD31  
BD32  
BD33 BD34  
BD35  
BD36  
BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU 0  
0 0 0 0 1 1  
0
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
W10  
W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 PF0 PF1 PF2 PF3  
P1A P1B P2A  
P2B P3A P3B  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
8 bits  
Control data  
53 bits  
P4A P4B P5A  
P5B  
P6A P6B  
P7A  
P7B  
P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
DD  
Note: DD is the direction data.  
3 bits  
No.A1971-13/32  
LC75890W, LC75890E  
(2) When CL is stopped at the high level  
• Display data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
D1 D2 D3 D4  
D29 D30 D31 D32 D33 D34 D35 D36 D37  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Display data  
37 bits  
Fixed data  
16 bits  
DD  
8 bits  
3 bits  
• Control data Input  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
BD1 BD2 BD3 BD4 BD5 BD6 BD7 BD8 BD9  
BD10 BD11  
BD12 BD13 BD14 BD15 BD16  
BD17 BD18 BD19 BD20 BD21  
BD22 BD23 BD24 BD25 BD26 BD27 BD28  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Control data  
8 bits  
53 bits  
BD29 BD30 BD31  
BD32  
BD33 BD34  
BD35  
BD36  
BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1 1  
DD  
3 bits  
CE  
CL  
DI  
0
0
0
0
1
0
1
0
W10 W11 W12 W13 W14 W15 W20 W21 W22  
W23 W24  
W25 W30 W31 W32 W33  
W34 W35 PF0 PF1 PF2  
PF3 P1A P1B P2A P2B P3A P3B  
B0 B1 B2 B3 A0 A1 A2 A3  
CCB address  
Control data  
53 bits  
8 bits  
P4A P4B P5A  
P5B  
P6A P6B  
P7A  
P7B  
P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
DD  
3 bits  
Note: DD is the direction data.  
• CCB address ......................... “50H”  
• D1 to D37 ............................. Display data  
Note : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D11, D13 to D23,  
D25 to D34, and D37.  
• BD1 to BD37 ........................ Display blinking control data of each segment output pin  
Note : In the case of the LC75890E(QIP44M), the control data are effective for only BD1 to BD11, BD13 to BD23,  
BD25 to BD34, and BD37.  
• BF0 to BF2 ........................... Segment blinking frequency setting control data  
• FC0 to FC2 ........................... Common/segment output waveform frame frequency setting control data  
• DT ........................................ 1/4-duty 1/3-bias drive or static drive switching control data  
• EXF ...................................... External clock operating frequency setting control data  
• OC ........................................ Internal oscillator operating mode/external clock operating mode switching control data  
• SC ......................................... Segment on/off control data  
• BU ........................................ Normal mode/power-saving mode control data  
• W10 to W15, W20 to W25,... PWM data of the PWM output  
W30 to W35  
• PF0 to PF3 ............................ PWM output waveform frame frequency setting control data  
• P1A, P1B to P12A, P12B ..... General-purpose output function/PWM output function switiching control data of the  
general-purpose output port  
Note : In the case of the LC75890E(QIP44M), the control data are effective for only P1A, P1B to P11A, P11B.  
• P0 to P3 ................................ Segment output port/general-purpose output port switching control data  
No.A1971-14/32  
LC75890W, LC75890E  
Serial Data Transfer Example  
1. 1/4 duty drive  
• LC75890W(SQFP48) : When 97 or more segments are used  
LC75890E(QIP44M) : When 89 or more segments are used  
All 320 bits of serial data (including CCB address) must be sent.  
8 bits  
56 bits  
BD1 BD2  
BD7  
BD17  
BD30  
P4B  
D30  
0
0
0
0
1
0
1
0
BD3 BD4 BD5 BD6  
BD8 BD9 BD10 BD11 BD12 BD13 BD14 BD15 BD16  
BD18 BD19 BD20 BD21 BD22 BD23 BD24 BD25 BD26 BD27 BD28 BD29  
BD31  
BD32  
B0 B1 B2 B3 A0 A1 A2 A3  
BD33 BD34 BD35 BD36 BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1
1
8 bits  
56 bits  
W11  
W13  
W21  
W31  
P1A  
P3B  
D28  
0
0
0
0
1
0
1
0
W10  
W12  
W14 W15 W20  
W22 W23 W24 W25 W30  
W32 W33 W34 W35 PF0 PF1 PF2 PF3  
P1B P2A P2B P3A  
P4A  
D29  
P5A P5B  
B0 B1 B2 B3 A0 A1 A2 A3  
P6A P6B P7A P7B P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
8 bits  
56 bits  
D23  
0
0
0
0
1
0
1
0
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22  
D24 D25 D26 D27  
D31 D32  
B0 B1 B2 B3 A0 A1 A2 A3  
D33 D34 D35 D36 D37 D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48  
0
0
0
0
0
0
0
0
8 bits  
56 bits  
0
0
0
0
1
0
1
0
D49 D50 D51 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 D73 D74 D75 D76 D77 D78 D79 D80  
B0 B1 B2 B3 A0 A1 A2 A3  
D81 D82 D83 D84 D85 D86 D87 D88 D89 D90 D91 D92 D93 D94 D95 D96  
0
0
0
0
0
0
0
1
8 bits  
56 bits  
0
0
0
0
1
0
1
0
D97 D98 D99 D100 D101 D102 D103 D104 D105 D106 D107 D108 D109 D110 D111 D112 D113 D114 D115 D116 D117 D118 D119 D120 D121 D122 D123 D124 D125 D126 D127 D128  
B0 B1 B2 B3 A0 A1 A2 A3  
D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 D142 D143 D144 D145 D146 D147 D148  
0
0
1
0
• LC75890W(SQFP48) : When fewer than 97 segments are used  
LC75890E(QIP44M) : When fewer than 89 segments are used  
Depending on the number of segments used, 192 bits or 256 bits (including CCB address) must be sent as serial  
data. However, the serial data (control data) shown in the figure below must be sent without fail.  
56 bits  
8 bits  
BD1 BD2  
BD7  
BD17  
BD30  
0
0
0
0
1
0
1
0
BD3 BD4 BD5 BD6  
BD8 BD9 BD10 BD11 BD12 BD13 BD14 BD15 BD16  
BD18 BD19 BD20 BD21 BD22 BD23 BD24 BD25 BD26 BD27 BD28 BD29  
BD31  
BD32  
B0 B1 B2 B3 A0 A1 A2 A3  
BD33 BD34 BD35 BD36 BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1
1
56 bits  
8 bits  
W11  
W13  
W21  
W31  
P1A  
P4B  
0
0
0
0
1
0
1
0
W10  
W12  
W14 W15 W20  
W22 W23 W24 W25 W30  
W32 W33 W34 W35 PF0 PF1 PF2 PF3  
P1B P2A P2B P3A P4A  
P3B  
P5A P5B  
B0 B1 B2 B3 A0 A1 A2 A3  
P6A P6B P7A P7B P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
Note : After the above serial data is sent, the contents of the display data can be changed by transferring only the  
serial data (CCB address, display data, fixed data, and direction data) including the display data to be  
changed in 64-bit units.  
In addition, in the case of the LC75890E(QIP44M), the display data are effective for only D1 to D44, D49  
to D92, D97 to D136, and D145 to D148, the control data are effective for only BD1 to BD11, BD13 to  
BD23, BD25 to BD34, BD37, and P1A, P1B to P11A, P11B.  
No.A1971-15/32  
LC75890W, LC75890E  
2. Static drive  
• All 192 bits of serial data (including CCB address) must be sent.  
8 bits  
56 bits  
BD1 BD2  
BD7  
BD17  
BD30  
P4B  
0
0
0
0
1
0
1
0
BD3 BD4 BD5 BD6  
BD8 BD9 BD10 BD11 BD12 BD13 BD14 BD15 BD16  
BD18 BD19 BD20 BD21 BD22 BD23 BD24 BD25 BD26 BD27 BD28 BD29  
BD31  
BD32  
B0 B1 B2 B3 A0 A1 A2 A3  
BD33 BD34 BD35 BD36 BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU  
0
0
0
0
0
0
1
1
8 bits  
56 bits  
W11  
W13  
W21  
W31  
P1A  
0
0
0
0
1
0
1
0
W10  
W12  
W14 W15 W20  
W22 W23 W24 W25 W30  
W32 W33 W34 W35 PF0 PF1 PF2 PF3  
P1B P2A P2B P3A P4A  
P3B  
P5A P5B  
B0 B1 B2 B3 A0 A1 A2 A3  
P6A P6B P7A P7B P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3  
0
0
0
1
0
0
8 bits  
56 bits  
0
0
0
0
1
0
1
0
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 D32  
B0 B1 B2 B3 A0 A1 A2 A3  
D33 D34 D35 D36 D37  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Note : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D11, D13 to D23,  
D25 to D34, and D37, the control data are effective for only BD1 to BD11, BD13 to BD23, BD25 to BD34,  
BD37, and P1A, P1B to P11A, P11B.  
No.A1971-16/32  
LC75890W, LC75890E  
Control Data Functions  
(1) BD1 to BD37 … Display blinking control data of each segment output pin  
These control data bits are used to set the display segment blinking corresponding to each segment output pin.  
BDn  
Display segment blinking states of segment output pin Sn  
0
The display segments are not blinked.  
The display segments corresponding to the segment output pin Sn that the contents of display  
data are "1" are blinked.  
1
Note: The BDn (n=1 to 37) are the control data setting the blinking state of the display segments for segment output  
pins Sn (n=1 to 37). However, in the case of the LC75890E(QIP44M), the control data are effective for only  
BD1 to BD11, BD13 to BD23, BD25 to BD34, and BD37.  
For example, the display state of segment output pin S21 becomes as follows when the contents of display data are  
(D81, D82, D83, D84)=(1, 0, 1, 0) in 1/4 duty drive  
Display data  
Display states of segment output pin S21  
BD21  
D81  
1
D82  
D83  
1
D84  
0
COM1  
on  
COM2  
off  
COM3  
on  
COM4  
off  
0
1
0
0
1
1
0
blink  
off  
blink  
off  
(2) BF0 to BF2 … Segment blinking frequency setting control data  
These control data bits are used to set the display segment blinking frequency  
Control data  
Segment blinking frequency fb[Hz]  
Internal oscillator operating mode  
(The control data OC is 0,  
fosc=300[kHz]typ)  
External clock operating mode  
(The control data OC is 1  
External clock operating mode  
(The control data OC is 1  
BF0  
BF1  
BF2  
and EXF is 0, f 1=300[kHz]typ)  
CK  
and EXF is 1, f 2=38[kHz]typ)  
CK  
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
fosc/600000  
fosc/360000  
fosc/300000  
fosc/240000  
fosc/180000  
fosc/150000  
fosc/120000  
fosc/100000  
f
f
f
f
f
f
f
f
1/600000  
1/360000  
1/300000  
1/240000  
1/180000  
1/150000  
1/120000  
1/100000  
f
f
f
f
f
f
f
f
2/75000  
2/45000  
2/37500  
2/30000  
2/22500  
2/18750  
2/15000  
2/12500  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
(3) FC0 to FC2 … Common/segment output waveform frame frequency setting control data  
These control data bits set the frame frequency of the common and segment output waveforms.  
Control data  
Common/segment output waveform frame frequency fo[Hz]  
Internal oscillator operating mode  
(The control data OC is 0,  
fosc=300[kHz]typ)  
External clock operating mode  
(The control data OC is 1  
External clock operating mode  
(The control data OC is 1  
FC0  
FC1  
FC2  
and EXF is 0, f 1=300[kHz]typ)  
CK  
and EXF is 1, f 2=38[kHz]typ)  
CK  
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
fosc/4608  
fosc/3456  
fosc/3072  
fosc/2304  
fosc/1536  
fosc/1152  
fosc/768  
f
f
f
f
f
f
1/4608  
1/3456  
1/3072  
1/2304  
1/1536  
1/1152  
1/768  
f
f
f
f
f
f
2/576  
2/432  
2/384  
2/288  
2/192  
2/144  
2/96  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
f
CK  
f
CK  
CK  
Note: When is setting (FC0, FC1, FC2)=(1, 1, 1), the frame frequency is same as frame frequency at the time of the  
(FC0, FC1, FC2)=(0, 1, 0) setting (fosc/3072, f 1/3072, f 2/384).  
CK CK  
No.A1971-17/32  
LC75890W, LC75890E  
(4) DT … 1/4-duty 1/3-bias drive or static drive switching control data  
This control data bit selects either 1/4-duty 1/3-bias drive or static drive.  
Common output pins states  
DT  
Drive scheme  
COM2  
COM3  
COM3  
COM4  
0
1
1/4 duty 1/3 bias drive  
Static drive  
COM2  
COM4  
“L” (V  
)
“L” (V  
)
“L” (V )  
SS  
SS  
SS  
Note: COM2, COM3, COM4 : Common output  
“L” (V ) : ”L” (V ) level output  
SS SS  
(5) EXF … External clock operating frequency setting control data  
This control data bit sets the operating frequency of the external clock which input into the OSCI pin, when the  
external clock operating mode (OC="1") is set. However, this control data is effective only when external clock  
operating mode (OC= "1") is set.  
EXF  
External clock operating frequency f [kHz]  
CK  
0
f
1=300[kHz]typ  
CK  
f
1
2=38[kHz]typ  
CK  
(6) OC … Internal oscillator operating mode/external clock operating mode switching control data  
This control data bit selects either the internal oscillator operating mode or external clock operating mode.  
I/O pin (S37/OSCI) state  
OC  
Fundamental clock operating mode  
Internal oscillator operating mode  
External clock operating mode  
0
S37  
1
OSCI  
Note: S37: Segment output  
OSCI: External clock input  
(7) SC … Segment on/off control data  
This control data bit controls the on/off state of the segments.  
SC  
Display state  
0
On  
Off  
1
Note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting segment off  
waveforms from the segment output pins.  
(8) BU … Normal mode/power-saving mode control data  
This control data bit selects either normal mode or power-saving mode.  
BU  
Mode  
0
Normal mode  
Power saving mode  
In this mode, the internal oscillator circuit stops oscillation (the S37/OSCI pin is configured for segment  
output) if the IC is in the internal oscillator operating mode (OC=0) and the IC stops receiving external clock  
signals (the S37/OSCI pin is configured for external clock input) if the IC is in the external clock operating  
1
mode (OC=1). In addition, the common and segment output pins go to the V  
LCD drive bias voltage stabilization circuit stops.  
level and the operation of  
SS  
However, the S1/P1 to S12/P12 output pins can be used as general-purpose output ports under the control  
of the data bits P0 to P3. (The general-purpose output port P1 to P12 can not be used as PWM output).  
No.A1971-18/32  
LC75890W, LC75890E  
(9) W10 to W15, W20 to W25, W30 to W35 … PWM data of the PWM output  
These control data bits set the pulse width of the PWM output P1 to P12. However, when the PWM output function  
isn’t used, these control data bits become invalid. In addition, when the external clock operating frequency is set the  
f
2=38[kHz]typ (EXF="1") in external clock operating mode (OC= "1"), these control data bits become invalid.  
CK  
Pulse width of  
Pulse width of  
Wn0  
Wn1  
Wn2  
Wn3  
Wn4  
Wn5  
Wn0  
Wn1  
Wn2  
Wn3  
Wn4  
Wn5  
PWM output  
PWM output  
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(1/64)×Tp  
(2/64)×Tp  
(3/64)×Tp  
(4/64)×Tp  
(5/64)×Tp  
(6/64)×Tp  
(7/64)×Tp  
(8/64)×Tp  
(9/64)×Tp  
(10/64)×Tp  
(11/64)×Tp  
(12/64)×Tp  
(13/64)×Tp  
(14/64)×Tp  
(15/64)×Tp  
(16/64)×Tp  
(17/64)×Tp  
(18/64)×Tp  
(19/64)×Tp  
(20/64)×Tp  
(21/64)×Tp  
(22/64)×Tp  
(23/64)×Tp  
(24/64)×Tp  
(25/64)×Tp  
(26/64)×Tp  
(27/64)×Tp  
(28/64)×Tp  
(29/64)×Tp  
(30/64)×Tp  
(31/64)×Tp  
(32/64)×Tp  
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(33/64)×Tp  
(34/64)×Tp  
(35/64)×Tp  
(36/64)×Tp  
(37/64)×Tp  
(38/64)×Tp  
(39/64)×Tp  
(40/64)×Tp  
(41/64)×Tp  
(42/64)×Tp  
(43/64)×Tp  
(44/64)×Tp  
(45/64)×Tp  
(46/64)×Tp  
(47/64)×Tp  
(48/64)×Tp  
(49/64)×Tp  
(50/64)×Tp  
(51/64)×Tp  
(52/64)×Tp  
(53/64)×Tp  
(54/64)×Tp  
(55/64)×Tp  
(56/64)×Tp  
(57/64)×Tp  
(58/64)×Tp  
(59/64)×Tp  
(60/64)×Tp  
(61/64)×Tp  
(62/64)×Tp  
(63/64)×Tp  
(64/64)×Tp  
Note: W10 to W15 … PWM data of the PWM output (Ch1)  
W20 to W25 … PWM data of the PWM output (Ch2)  
W30 to W35 … PWM data of the PWM output (Ch3)  
1
Tp=  
fp  
No.A1971-19/32  
LC75890W, LC75890E  
(10) PF0 to PF3 … PWM output waveform frame frequency setting control data  
These control data bits set the frame frequency of the PWM output waveforms. However, when the PWM output  
function isn’t used, these control data bits become invalid. In addition, when the external clock operating frequency  
is set the f 2=38[kHz]typ (EXF="1") in external clock operating mode (OC= "1"), these control data bits become  
CK  
invalid.  
Control data  
PWM output waveform frame frequency fp[Hz]  
Internal oscillator operating mode  
External clock operating mode  
PF0  
PF1  
PF2  
PF3  
(The control data OC is 0,  
fosc=300[kHz] typ)  
(The control data OC is 1 and EXF is 0,  
f
1=300[kHz] typ)  
CK  
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
fosc/1536  
fosc/1408  
fosc/1280  
fosc/1152  
fosc/1024  
fosc/896  
fosc/768  
fosc/640  
fosc/512  
fosc/384  
fosc/256  
f
f
f
f
f
1/1536  
1/1408  
1/1280  
1/1152  
1/1024  
1/896  
CK  
CK  
CK  
CK  
0
1
1
0
0
1
1
0
0
1
0
0
0
1
1
1
1
0
0
0
CK  
f
CK  
CK  
CK  
CK  
CK  
CK  
f
f
f
f
f
1/768  
1/640  
1/512  
1/384  
1/256  
Note: When are setting (PF0, PF1, PF2, PF3)=(1, 1, 0, 1) and (X, X, 1, 1), the frame frequency is same as frame  
frequency at the time of the (PF0, PF1, PF2, PF3)=(1, 0, 1, 0) setting (fosc/896, f 1/896).  
CK  
X: don’t care  
(11) P1A, P1B to P12A, P12B … General-purpose output function/PWM output function switiching control data of the  
general-purpose output port  
These control data bits set the general-purpose output function (High or low level output) or PWM output function  
of the general-purpose output ports P1 to P12. However, when the S1/P1 to S12/P12 output pins arn’t set the  
general-purpose output port, these control data bits become invalid. In addition, be careful of being unable to set a  
PWM output function when the external clock operating frequency is set the f 2=38[kHz]typ (EXF="1") in  
CK  
external clock operating mode (OC= "1").  
PnA  
PnB  
Functions of the general-purpose output port (Pn)  
General-purpose output function (High or low level output)  
PWM output function (Ch1)  
0
0
1
0
0
1
PWM output function (Ch2)  
1
1
PWM output function (Ch3)  
Note: The data PnA, PnB (n=1 to 12) are the control data switching the general-purpose output function or PWM  
output function of the general-purpose output ports P1 to p12. For example, if the S10/P10 output pin is set the  
general-purpose output port, the general-purpose output port P10 pin is selected the PWM output function  
(Ch1) when (P10A, P10B)=(1, 0). However, in the case of the LC75890E(QIP44M), the control data are  
effective for only P1A, P1B to P11A, P11B.  
No.A1971-20/32  
LC75890W, LC75890E  
(12) P0 to P3 … Segment output port/general-purpose output port switching control data  
These control data bits switch the segment output port/general-purpose output port functions of the S1/P1 to  
S12/P12 output pins.  
Control data  
Output pin state  
P0  
0
0
0
0
0
0
0
0
1
1
1
1
1
P1  
0
0
0
0
1
1
1
1
0
0
0
0
1
P2  
0
0
1
1
0
0
1
1
0
0
1
1
0
P3  
0
1
0
1
0
1
0
1
0
1
0
1
0
S1/P1  
S1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
P1  
S2/P2  
S2  
S2  
P2  
P2  
P2  
P2  
P2  
P2  
P2  
P2  
P2  
P2  
P2  
S3/P3  
S3  
S3  
S3  
P3  
P3  
P3  
P3  
P3  
P3  
P3  
P3  
P3  
P3  
S4/P4  
S4  
S4  
S4  
S4  
P4  
P4  
P4  
P4  
P4  
P4  
P4  
P4  
P4  
S5/P5  
S5  
S5  
S5  
S5  
S5  
P5  
P5  
P5  
P5  
P5  
P5  
P5  
P5  
S6/P6  
S6  
S6  
S6  
S6  
S6  
S6  
P6  
P6  
P6  
P6  
P6  
P6  
P6  
S7/P7  
S7  
S7  
S7  
S7  
S7  
S7  
S7  
P7  
P7  
P7  
P7  
P7  
P7  
S8/P8  
S8  
S8  
S8  
S8  
S8  
S8  
S8  
S8  
P8  
P8  
P8  
P8  
P8  
S9/P9 S10/P10 S11/P11 S12/P12  
S9  
S9  
S9  
S9  
S9  
S9  
S9  
S9  
S9  
P9  
P9  
P9  
P9  
S10  
S10  
S10  
S10  
S10  
S10  
S10  
S10  
S10  
S10  
P10  
P10  
P10  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
P11  
P11  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
S12  
P12  
Note1: Sn (n=1 to 12)…Segment output port  
Pn (n=1 to 12)…General-purpose output port  
Note2: In the case of the LC75890E(QIP44M), the output pins are effective for only S1/P1 to S11/P11 pins.  
Note3: When are setting (P0, P1, P2, P3)=(1, 1, 0, 1), (1, 1, 1, 0) and (1, 1, 1, 1), the all S1/P1 to S12/P12 output pins  
are selected the segment output port.  
The table below lists the correspondence between the display data and the output pins when these pins are selected to be  
general-purpose output ports (general-purpose output function).  
Correspondence display data  
Output pin  
1/4 duty drive  
Static drive  
S1/P1  
S2/P2  
D1  
D1  
D5  
D2  
S3/P3  
D9  
D3  
S4/P4  
D13  
D4  
S5/P5  
D17  
D5  
S6/P6  
D21  
D6  
S7/P7  
D25  
D7  
S8/P8  
D29  
D8  
S9/P9  
D33  
D9  
S10/P10  
S11/P11  
S12/P12  
D37  
D10  
D11  
D12  
D41  
D45  
For example, if the circuit is operated in 1/4 duty and the S4/P4 output pin is selected to be a general-purpose output  
port and is set general-purpose output function, the S4/P4 output pin will output a high (V ) level when the  
LCD  
display data D13 is 1, and will output a low (V ) level when D13 is 0.  
SS  
No.A1971-21/32  
LC75890W, LC75890E  
Display Data and Display Blinking Control Data and Output Pin Correspondence  
(1/4 Duty Drive)  
Blinking  
Blinking  
Output pin  
COM1  
COM2  
COM3  
COM4  
Output pin  
COM1  
COM2  
COM3  
COM4  
control data  
control data  
BD19  
BD20  
BD21  
BD22  
BD23  
BD24  
BD25  
BD26  
BD27  
BD28  
BD29  
BD30  
BD31  
BD32  
BD33  
BD34  
BD35  
BD36  
BD37  
S1/P1  
S2/P2  
S3/P3  
S4/P4  
S5/P5  
S6/P6  
S7/P7  
S8/P8  
S9/P9  
S10/P10  
S11/P11  
S12/P12  
S13  
D1  
D2  
D3  
D4  
BD1  
BD2  
S19  
S20  
D73  
D77  
D74  
D78  
D75  
D79  
D76  
D80  
D5  
D6  
D7  
D8  
D9  
D10  
D14  
D18  
D22  
D26  
D30  
D34  
D38  
D42  
D46  
D50  
D54  
D58  
D62  
D66  
D70  
D11  
D15  
D19  
D23  
D27  
D31  
D35  
D39  
D43  
D47  
D51  
D55  
D59  
D63  
D67  
D71  
D12  
D16  
D20  
D24  
D28  
D32  
D36  
D40  
D44  
D48  
D52  
D56  
D60  
D64  
D68  
D72  
BD3  
S21  
D81  
D82  
D83  
D84  
D13  
D17  
D21  
D25  
D29  
D33  
D37  
D41  
D45  
D49  
D53  
D57  
D61  
D65  
D69  
BD4  
S22  
D85  
D86  
D87  
D88  
BD5  
S23  
D89  
D90  
D91  
D92  
BD6  
S24  
D93  
D94  
D95  
D96  
BD7  
S25  
D97  
D98  
D99  
D100  
D104  
D108  
D112  
D116  
D120  
D124  
D128  
D132  
D136  
D140  
D144  
D148  
BD8  
S26  
D101  
D105  
D109  
D113  
D117  
D121  
D125  
D129  
D133  
D137  
D141  
D145  
D102  
D106  
D110  
D114  
D118  
D122  
D126  
D130  
D134  
D138  
D142  
D146  
D103  
D107  
D111  
D115  
D119  
D123  
D127  
D131  
D135  
D139  
D143  
D147  
BD9  
S27  
BD10  
BD11  
BD12  
BD13  
BD14  
BD15  
BD16  
BD17  
BD18  
S28  
S29  
S30  
S31  
S14  
S32  
S15  
S33  
S16  
S34  
S17  
S35  
S18  
S36  
S37/OSCI  
Note: This table assumes that pins S1/P1 to S12/P12 and S37/OSCI are configured for segment output.  
In addition, in the case of the LC75890E(QIP44M), the display data are effective for only D1 to D44, D49 to D92,  
D97 to D136, and D145 to D148, the display blinking control data are effective for only BD1 to BD11, BD13 to  
BD23, BD25 to BD34, and BD37. (In the case of the LC75890E(QIP44M), the output pins are effective for only  
S1/P1 to S11/P11, S13 to S23, S25 to S34, and S37/OSCI pins.)  
For example, the table below lists the output states for the S21 output pin.  
Display data  
Blinking control data  
Output pin (S21) state  
D81  
0
D82  
0
D83  
0
D84  
0
BD21  
0
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are off.  
The LCD segment corresponding to COM4 is on.  
0
0
0
1
0
0
0
1
0
0
The LCD segment corresponding to COM3 is on.  
0
0
1
1
0
The LCD segments corresponding to COM3 and COM4 are on.  
The LCD segment corresponding to COM2 is on.  
0
1
0
0
0
0
1
0
1
0
The LCD segments corresponding to COM2 and COM4 are on.  
The LCD segments corresponding to COM2 and COM3 are on.  
The LCD segments corresponding to COM2, COM3, and COM4 are on.  
The LCD segment corresponding to COM1 is on.  
0
1
1
0
0
0
1
1
1
0
1
0
0
0
0
1
0
0
1
0
The LCD segments corresponding to COM1 and COM4 are on.  
The LCD segments corresponding to COM1 and COM3 are on.  
The LCD segments corresponding to COM1, COM3, and COM4 are on.  
The LCD segments corresponding to COM1 and COM2 are on.  
The LCD segments corresponding to COM1, COM2, and COM4 are on.  
The LCD segments corresponding to COM1, COM2, and COM3 are on.  
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are on.  
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are off.  
The LCD segments corresponding to COM2 and COM4 are blinking.  
The LCD segments corresponding to COM1 and COM3 are blinking.  
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are blinking.  
1
0
1
0
0
1
0
1
1
0
1
1
0
0
0
1
1
0
1
0
1
1
1
0
0
1
1
1
1
0
0
0
0
0
1
0
1
0
1
1
1
0
1
0
1
1
1
1
1
1
No.A1971-22/32  
LC75890W, LC75890E  
Display Data and Display Blinking Control Data and Output Pin Correspondence  
(Static Drive)  
Output pin  
S1/P1  
S2/P2  
S3/P3  
S4/P4  
S5/P5  
S6/P6  
S7/P7  
S8/P8  
S9/P9  
S10/P10  
S11/P11  
S12/P12  
S13  
COM1  
Blinking control data  
Output pin  
COM1  
D19  
D20  
D21  
D22  
D23  
D24  
D25  
D26  
D27  
D28  
D29  
D30  
D31  
D32  
D33  
D34  
D35  
D36  
D37  
Blinking control data  
D1  
BD1  
S19  
BD19  
D2  
BD2  
S20  
BD20  
D3  
BD3  
S21  
BD21  
D4  
BD4  
S22  
BD22  
D5  
BD5  
S23  
BD23  
D6  
BD6  
S24  
BD24  
D7  
BD7  
S25  
BD25  
D8  
BD8  
S26  
BD26  
D9  
BD9  
S27  
BD27  
D10  
D11  
D12  
D13  
D14  
D15  
D16  
D17  
D18  
BD10  
BD11  
BD12  
BD13  
BD14  
BD15  
BD16  
BD17  
BD18  
S28  
BD28  
S29  
BD29  
S30  
BD30  
S31  
BD31  
S14  
S32  
BD32  
S15  
S33  
BD33  
S16  
S34  
BD34  
S17  
S35  
BD35  
S18  
S36  
BD36  
S37/OSCI  
BD37  
Note: This table assumes that pins S1/P1 to S12/P12 and S37/OSCI are configured for segment output.  
In addition, in the case of the LC75890E(QIP44M), the display data are effective for only D1 to D11, D13 to D23,  
D25 to D34, and D37, the display blinking control data are effective for only BD1 to BD11, BD13 to BD23,  
BD25 to BD34, and BD37. (In the case of the LC75890E(QIP44M), the output pins are effective for only S1/P1  
to S11/P11, S13 to S23, S25 to S34, and S37/OSCI pins.)  
For example, the table below lists the output states for the S21 output pin.  
Display data  
Blinking control data  
Output pin (S21) state  
D21  
0
BD21  
0
0
1
1
The LCD segment corresponding to COM1 is off.  
The LCD segment corresponding to COM1 is on.  
The LCD segment corresponding to COM1 is off.  
The LCD segment corresponding to COM1 is blinking.  
1
0
1
No.A1971-23/32  
LC75890W, LC75890E  
Output waveforms (1/4-Duty 1/3-Bias Drive Scheme)  
fo[Hz]  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
COM1  
COM2  
COM3  
COM4  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
V
LCD  
LCD driver output when all LCD segments  
corresponding to COM1, COM2, COM3, and  
COM4 are off.  
2/3V  
1/3V  
0V  
LCD  
LCD  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when only LCD segments  
corresponding to COM1 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when only LCD segments  
corresponding to COM2 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when LCD segments  
corresponding to COM1 and COM2 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when only LCD segments  
corresponding to COM3 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when LCD segments  
corresponding to COM1 and COM3 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when LCD segments  
corresponding to COM2 and COM3 are on.  
V
LCD  
LCD driver output when LCD segments  
corresponding to COM1, COM2, and COM3  
are on.  
2/3V  
1/3V  
0V  
LCD  
LCD  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when only LCD segments  
corresponding to COM4 are on.  
V
LCD  
2/3V  
1/3V  
0V  
LCD  
LCD  
LCD driver output when LCD segments  
corresponding to COM2 and COM4 are on.  
V
LCD  
LCD driver output when all LCD segments  
corresponding to COM1, COM2, COM3, and  
COM4 are on.  
2/3V  
1/3V  
0V  
LCD  
LCD  
Control data  
FC1  
Common/segment output waveform frame frequency fo[Hz]  
Internal oscillator operating mode  
(The control data OC is 0,  
fosc=300[kHz]typ)  
External clock operating mode  
(The control data OC is 1  
and EXF is 0, f 1=300[kHz]typ)  
CK  
External clock operating mode  
(The control data OC is 1  
and EXF is 1, f 2=38[kHz]typ)  
CK  
FC0  
FC2  
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
fosc/4608  
fosc/3456  
fosc/3072  
fosc/2304  
fosc/1536  
fosc/1152  
fosc/768  
f
f
f
f
f
f
1/4608  
1/3456  
1/3072  
1/2304  
1/1536  
1/1152  
1/768  
f
f
f
f
f
f
2/576  
2/432  
2/384  
2/288  
2/192  
2/144  
2/96  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
f
CK  
f
CK  
CK  
Note: When is setting (FC0, FC1, FC2)=(1, 1, 1), the frame frequency is same as frame frequency at the time of the  
(FC0, FC1, FC2)=(0, 1, 0) setting (fosc/3072, f 1/3072, f 2/384).  
CK CK  
No.A1971-24/32  
LC75890W, LC75890E  
Output waveforms (Static Drive Scheme)  
fo[Hz]  
V
LCD  
COM1  
0V  
V
LCD  
LCD driver output when off.  
0V  
V
LCD  
LCD driver output when on.  
0V  
Control data  
Common/segment output waveform frame frequency fo[Hz]  
Internal oscillator operating mode  
External clock operating mode  
(The control data OC is 1  
and EXF is 0, f 1=300[kHz]typ)  
CK  
External clock operating mode  
(The control data OC is 1  
and EXF is 1, f 2=38[kHz]typ)  
CK  
(The control data OC is 0,  
fosc=300[kHz]typ)  
FC0  
FC1  
FC2  
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
fosc/4608  
fosc/3456  
fosc/3072  
fosc/2304  
fosc/1536  
fosc/1152  
fosc/768  
f
f
f
f
f
f
1/4608  
1/3456  
1/3072  
1/2304  
1/1536  
1/1152  
1/768  
f
f
f
f
f
f
2/576  
2/432  
2/384  
2/288  
2/192  
2/144  
2/96  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
CK  
f
CK  
f
CK  
CK  
Note: When is setting (FC0, FC1, FC2)=(1, 1, 1), the frame frequency is same as frame frequency at the time of the  
(FC0, FC1, FC2)=(0, 1, 0) setting (fosc/3072, f 1/3072, f 2/384).  
CK CK  
No.A1971-25/32  
LC75890W, LC75890E  
PWM output waveforms  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LCD  
SS  
Pn (PWM output Ch1)  
(56/64)×Tp  
(48/64)×Tp  
(40/64)×Tp  
(56/64)×Tp  
LCD  
SS  
(1)  
(2)  
(3)  
Pn (PWM output Ch2)  
Pn (PWM output Ch3)  
Pn (PWM output Ch1)  
Pn (PWM output Ch2)  
Pn (PWM output Ch3)  
Pn (PWM output Ch1)  
Pn (PWM output Ch2)  
Pn (PWM output Ch3)  
(48/64)×Tp  
(40/64)×Tp  
LCD  
SS  
LCD  
SS  
(8/64)×Tp  
(8/64)×Tp  
LCD  
SS  
(16/64)×Tp  
(24/64)×Tp  
(32/64)×Tp  
(32/64)×Tp  
(32/64)×Tp  
(16/64)×Tp  
(24/64)×Tp  
(32/64)×Tp  
(32/64)×Tp  
(32/64)×Tp  
LCD  
SS  
LCD  
SS  
LCD  
SS  
LCD  
SS  
1
fp  
Tp=  
Pn (n=1 to 12)  
Tp  
Tp  
Control data  
W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35  
PWM output  
waveforms  
1
1
1
1
1
1
1
1
1
0
0
1
1
0
1
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
0
0
1
1
1
1
1
1
1
1
1
0
0
1
0
1
1
1
0
0
(1)  
(2)  
(3)  
Control data  
PWM output waveform frame frequency fp[Hz]  
Internal oscillator operating mode  
(The control data OC is 0,  
fosc=300[kHz] typ)  
External clock operating mode  
(The control data OC is 1 and  
PF0  
PF1  
PF2  
PF3  
EXF is 0, f 1=300[kHz] typ)  
CK  
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
fosc/1536  
fosc/1408  
fosc/1280  
fosc/1152  
fosc/1024  
fosc/896  
fosc/768  
fosc/640  
fosc/512  
fosc/384  
fosc/256  
f
f
f
f
f
1/1536  
1/1408  
1/1280  
1/1152  
1/1024  
1/896  
CK  
CK  
CK  
CK  
0
1
1
0
0
1
1
0
0
1
0
0
0
1
1
1
1
0
0
0
CK  
f
CK  
CK  
CK  
CK  
CK  
CK  
f
f
f
f
f
1/768  
1/640  
1/512  
1/384  
1/256  
Note1: When is setting (PF0, PF1, PF2, PF3)=(1, 1, 0, 1) and (X, X, 1, 1), the frame frequency is same as frame  
frequency at the time of the (PF0, PF1, PF2, PF3)=(1, 0, 1, 0) setting (fosc/896, f 1/896).  
X: don’t care  
CK  
Note2: In the case of the LC75890E(QIP44M), the output pins are effective for only P1 to P11 pins.  
No.A1971-26/32  
LC75890W, LC75890E  
Display Control and the INH Pin  
Since the LSI internal data (1/4 duty drive : the display data D1 to D148 and the control data, Static drive : the display  
data D1 to D37 and the control data) is undefined when power is first applied, applications should set the INH pin low  
at the same time as power is applied to turn off the display (This sets the S1/P1 to S12/P12, S13 to S36, COM4 to  
COM1, and S37/OSCI pins to the V level.) and during this period send serial data from the controller. The controller  
SS  
should then set the INH pin high after the data transfer has completed. This procedure prevents meaningless display at  
power on.  
(See Figure 4 and Figure 5.)  
Notes on the Power On/Off Sequences  
Applications should observe the following sequences when turning the LC75890 power on and off.  
(See Figures 4 and Figure 5.)  
• At power on : Logic block power supply (V ) on LCD driver block power supply (V  
) on  
DD LCD  
• At power off : LCD driver block power supply (V  
) off Logic block power supply (V ) off  
LCD DD  
However, if the logic and LCD driver block use a shared power supply, then the power supplies can be turned on and  
off at the same time.  
(1)1/4 duty drive  
t2  
t1  
t3  
V
V
DD  
LCD  
INH  
CE  
V
1
IL  
tc  
V
1
IL  
Display data and control  
data transferred  
BD1 to BD37,BF0 to BF2,  
Undefined  
Undefined  
Undefined  
Undefined  
Undefined  
Defined  
Defined  
Defined  
Defined  
Defined  
Undefined  
Undefined  
Undefined  
Undefined  
Undefined  
Internal data  
Internal data  
FC0 to FC2,DT,EXF,OC,SC,BU  
W10 to W15,W20 to W25,  
W30 to W35,PF0 to PF3,P1A,  
P1B to P12A,P12B,P0 to P3  
Internal data (D1 to D48)  
Internal data (D49 to D96)  
Internal data (D97 to D148)  
Note1 : t10  
t2>0  
t30 (t2>t3)  
tc 10μs min  
Note2 : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D44, D49 to D92,  
D97 to D136, and D145 to D148, the display blinking control data are effective for only BD1 to BD11,  
BD13 to BD23, BD25 to BD34, and BD37, and the general-purpose output function/PWM output  
function switiching control data of the general-purpose output port are effective for only P1A, P1B to  
P11A, P11B.  
[Figure 4]  
No.A1971-27/32  
LC75890W, LC75890E  
(2)Static drive  
t2  
t1  
t3  
V
DD  
V
LCD  
INH  
CE  
V
1
IL  
tc  
V
1
IL  
Display data and control  
data transferred  
BD1 to BD37,BF0 to BF2,  
FC0 to FC2,DT,EXF,OC,SC,BU  
Internal data  
Internal data  
Undefined  
Undefined  
Undefined  
Defined  
Defined  
Defined  
Undefined  
Undefined  
Undefined  
W10 to W15,W20 to W25,  
W30 to W35,PF0 to PF3,P1A,  
P1B to P12A,P12B,P0 to P3  
Internal data (D1 to D37)  
Note1 : t10  
t2>0  
t30 (t2>t3)  
tc 10μs min  
Note2 : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D11, D13 to D23,  
D25 to D34, and D37, the display blinking control data is effective for only BD1 to BD11, BD13 to  
BD23, BD25 to BD34, and BD37, and the general-purpose output function/PWM output function  
switiching control data of the general-purpose output port are effective for only P1A, P1B to P11A,  
P11B.  
[Figure 5]  
Notes on Controller Transfer of Display Data  
When using the LC75890 in 1/4 duty, applications transfer the display data (D1 to D148) in three operations. In either  
case, applications should transfer all of the display data within 30 ms to maintain the quality of displayed image.  
No.A1971-28/32  
LC75890W, LC75890E  
S37/OSCI Pin Peripheral Circuit  
(1) Internal oscillator operating mode (control data OC=0)  
Connect the S37/OSCI pin to the LCD panel when the internal oscillator operating mode is selected.  
OSCI/S37  
To LCD panel  
(2) External clock operating mode (control data OC=1)  
When the external clock operating mode is selected, insert a current protection resistor Rg (2.2 to 22kΩ) between  
the S37/OSCI pin and external clock output pin (external oscillator). Determine the value of the resistance according  
to the allowable current value at the external clock output pin. Also make sure that the waveform of the external  
clock is not heavily distorted.  
In addition, the following conditions must be met : V V  
DD LCD  
.
External clock output pin  
External oscillator  
OSCI/S37  
Rg  
V
LCD  
Rg  
Note: Allowable current value at external clock output pin >  
V  
V
DD LCD  
(3) Unused pin treatment  
When the S37/OSCI pin is not to be used, select the internal oscillator operating mode (setting control data OC to 0)  
to keep the pin open.  
OPEN  
OSCI/S37  
P1 to P12 pin peripheral circuit  
It is recommended the circuit shown below be used to adjust the brightness of the LED backlight using the PWM output  
P1 to P12  
+5V  
LED  
P1 to P12  
Note : In the case of the LC75890E(QIP44M), the output pins are effective for only P1 to P11 pins.  
No.A1971-29/32  
LC75890W, LC75890E  
Sample Applications Circuit 1  
<LC75890W(SQFP48)>  
1/4 Duty, 1/3 Bias Drive  
General-purpose  
output ports  
(P1)  
(P2)  
Used for functions  
such as backlight  
control  
(P12)  
+3.3V  
+5V  
V
COM1  
COM2  
COM3  
COM4  
P1/S1  
P2/S2  
DD  
V
V
SS  
LCD  
P12/S12  
S13  
INH  
CE  
CL  
DI  
From the  
controller  
S35  
S36  
*6 OSCI/S37  
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection  
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external  
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)  
Sample Applications Circuit 2  
<LC75890W(SQFP48)>  
Static Drive  
General-purpose  
output ports  
(P1)  
(P2)  
Used for functions  
such as backlight  
control  
(P12)  
+3.3V  
+5V  
V
COM1  
DD  
P1/S1  
P2/S2  
V
V
SS  
LCD  
P12/S12  
S13  
S36  
INH  
CE  
CL  
DI  
*6 OSCI/S37  
From the  
controller  
COM2  
COM3  
COM4  
OPEN  
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection  
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external  
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)  
No.A1971-30/32  
LC75890W, LC75890E  
Sample Applications Circuit 3  
<LC75890E(QIP44M)>  
1/4 Duty, 1/3 Bias Drive  
General-purpose  
output ports  
(P1)  
(P2)  
Used for functions  
such as backlight  
control  
(P11)  
+3.3V  
+5V  
V
COM1  
COM2  
COM3  
COM4  
P1/S1  
P2/S2  
DD  
V
V
SS  
LCD  
P11/S11  
S13  
S23  
S25  
INH  
CE  
CL  
DI  
From the  
controller  
S33  
S34  
*6 OSCI/S37  
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection  
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external  
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)  
Sample Applications Circuit 4  
<LC75890E(QIP44M)>  
Static Drive  
General-purpose  
output ports  
(P1)  
(P2)  
Used for functions  
such as backlight  
control  
(P11)  
+3.3V  
+5V  
V
COM1  
DD  
P1/S1  
P2/S2  
V
V
SS  
LCD  
P11/S11  
S13  
S23  
S25  
S34  
INH  
CE  
CL  
DI  
*6 OSCI/S37  
From the  
controller  
COM2  
COM3  
COM4  
OPEN  
*6 Connect the S37/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection  
resistor Rg(2.2 to 22kΩ) between the S37/OSCI pin and external clock output pin (external oscillator) in the external  
clock operating mode. (See “S37/OSCI Pin Peripheral Circuit”)  
No.A1971-31/32  
LC75890W, LC75890E  
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using  
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition  
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.  
products described or contained herein.  
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all  
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or  
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise  
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt  
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not  
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural  
design.  
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are  
controlled under any of applicable local export control laws and regulations, such products may require the  
export license from the authorities concerned in accordance with the above law.  
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or  
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,  
without the prior written consent of SANYO Semiconductor Co.,Ltd.  
Any and all information described or contained herein are subject to change without notice due to  
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the  
SANYO Semiconductor Co.,Ltd. product that you intend to use.  
Upon using the technical information or products described herein, neither warranty nor license shall be granted  
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third  
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's  
intellctual property rights which has resulted from the use of the technical information and products mentioned  
above.  
This catalog provides information as of March, 2012. Specifications and information herein are subject  
to change without notice.  
PS No.A1971-32/32  

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