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CFAG14432B-TFH-TT [CRYSTAIFONTZ]

GRAPHIC LCD MODULE;
CFAG14432B-TFH-TT
型号： CFAG14432B-TFH-TT
厂家： Crystalfontz America, Inc.    Crystalfontz America, Inc.
描述：

GRAPHIC LCD MODULE

CD
文件： 总11页 (文件大小：689K)
中文：  中文翻译
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Crystalfontz  
GRAPHIC LCD MODULE DATASHEET  
Datasheet Release Date 2017-07-21  
for  
CFAG14432B-TFH-TT  
Crystalfontz America, Inc.  
12412 East Saltese Avenue  
Spokane Valley, WA 99216-0357  
Phone: 888-206-9720  
Fax: 509-892-1203  
Email: support@crystalfontz.com  
URL: www.crystalfontz.com  
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
CONTENTS  
1. General Information ............................................................................................................................3  
2. Module Description .............................................................................................................................4  
3. Features ..............................................................................................................................................4  
4. Mechanical Data .................................................................................................................................4  
5. Mechanical Drawing............................................................................................................................5  
6. Interface Pin Function .........................................................................................................................6  
7. System Block Diagram........................................................................................................................6  
8. Absolute Maximum Ratings ................................................................................................................7  
9. Electrical Characteristics.....................................................................................................................7  
10. Optical Characteristics ......................................................................................................................7  
11. Backlight Information.........................................................................................................................8  
12. LCD Module Precautions ..................................................................................................................9  
Page | 2  
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
1. General Information  
Datasheet Revision History  
Datasheet Release: 2017-07-21  
Datasheet for the CFAG14432B-TFH-TT graphic LCD display module.  
Product Change Notifications  
You can check for or subscribe to Part Change Notices for this display module on our website.  
Variations  
Slight variations between lots are normal (e.g., contrast, color, or intensity).  
Volatility  
This display module has volatile memory.  
Disclaimer  
Certain applications using Crystalfontz America, Inc. products may involve potential risks of death, personal  
injury, or severe property or environmental damage (“Critical Applications”). CRYSTALFONTZ AMERICA, INC.  
PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR  
USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.  
Inclusion of Crystalfontz America, Inc. products in such applications is understood to be fully at the risk of the  
customer. In order to minimize risks associated with customer applications, adequate design and operating  
safeguards should be provided by the customer to minimize inherent or procedural hazard. Please contact us  
if you have any questions concerning potential risk applications.  
Crystalfontz America, Inc. assumes no liability for applications assistance, customer product design, software  
performance, or infringements of patents or services described herein. Nor does Crystalfontz America, Inc.  
warrant or represent that any license, either express or implied, is granted under any patent right, copyright, or  
other intellectual property right of Crystalfontz America, Inc. covering or relating to any combination, machine,  
or process in which our products or services might be or are used.  
All specifications in datasheets on our website are, to the best of our knowledge, accurate but not guaranteed.  
Corrections to specifications are made as any inaccuracies are discovered.  
Company and product names mentioned in this publication are trademarks or registered trademarks of their  
respective owners.  
Copyright © 2017 by Crystalfontz America, Inc.,12412 East Saltese Avenue, Spokane Valley, WA 99216  
U.S.A.  
Page | 3  
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
2. Module Description  
This is a white monochrome graphic LCD display module with a white LED backlight. This display has  
a built-in Sitronix ST7920 controller.  
Please see Sitronix ST7920 LCD Controller Datasheet for further reference.  
3. Features  
• 144*32 Dot Matrix  
• Built-in Controller ST7920 (or equivalent)  
• Viewing Direction: 6 o’clock  
• FSTN Positive, White, Transflective Mode  
• +5V Power Supply  
• Operating Temperature: -20°C to +70°C  
• Storage Temperature: -30°C to +80°C  
• 1/32 Duty  
• Interface: 8080/SPI  
4. Mechanical Data  
Specification  
(mm)  
Specification  
(inch, reference)  
Item  
Overall Width and Height  
Viewing Area  
Active Area  
80.0 (W) x 36.0 (H) x 13.2 (D)  
66.0 (W) x 16.0 (H)  
60.44 (W) x 13.4 (H)  
0.38 (W) x 0.38 (H)  
0.42 (W) x 0.42 (H)  
33 grams  
3.149 (W) x 1.417 (H) x 0.519 (D)  
2.598 (W) x 0.629 (H)  
2.379 (W) x 0.528 (H)  
0.015 (W) x 0.015 (H)  
0.017 (W) x 0.017 (H)  
1.16 ounces  
Dot Size  
Dot Pitch  
Weight (Typical)  
Page | 4  
 
 
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
5. Mechanical Drawing  
Page | 5  
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
6. Interface Pin Function  
Pin No.  
Symbol Level  
Function  
1
2
3
4
VSS  
VDD  
VO  
0v  
5.0v  
-
Ground  
Supply Voltage for Logic  
Supply Voltage for LCD  
Register Select Signal  
RS  
H/L  
H: Read  
L: Write  
5
R/W  
H/L  
6
E
H/L  
H/L  
H/L  
H/L  
H/L  
H/L  
H/L  
H/L  
H/L  
-
Enable Signal  
Data Bus Line  
Data Bus Line  
Data Bus Line  
Data Bus Line  
Data Bus Line  
Data Bus Line  
Data Bus Line  
Data Bus Line  
LED (+)  
7
DB0  
DB1  
DB2  
DB3  
DB4  
DB5  
DB6  
DB7  
A
8
9
10  
11  
12  
13  
14  
15  
16  
K
-
LED (-)  
7. System Block Diagram  
Page | 6  
 
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
8. Absolute Maximum Ratings  
Parameter  
Symbol  
Min  
Max  
Unit  
Notes  
Supply Voltage for Logic  
VDD -VSS  
-0.3  
5.5  
V
(1)(2)  
Supply Voltage for LCD  
Input Voltage  
VDD -VO  
VIN  
0
7.0  
VDD+0.3  
+70  
V
V
(1)(2)  
-0.3  
-20  
-30  
-
-
-
Operating Temperature  
Storage Temperature  
TOP  
°C  
°C  
TST  
+80  
Notes:  
(1) These are stress ratings only. Extended exposure to the absolute maximum ratings listed above  
may affect device reliability or cause permanent damage.  
(2) Functional operation should be restricted to the limits in the Electrical Characteristics table below.  
9. Electrical Characteristics  
Item  
Symbol  
Condition  
Min  
Typ  
Max  
Unit  
Supply Voltage for Logic  
VDD -VSS  
-
4.5  
5.0  
5.5  
V
Ta=20°C  
Ta=25°C  
Ta=70°C  
-
-
-
4.8  
-
5.5  
-
-
V
V
V
Supply Voltage for LCD  
VDD -VO  
4.2  
High-level Input  
Low-level Input  
High-level Output  
Low-level Output  
Supply Current  
VIH  
VIL  
-
0.7 VDD  
-0.3  
-
VDD  
0.6  
VDD  
0.4  
3.5  
V
V
-
-
-
VOH  
VOL  
IDD  
-
0.8 VDD  
-
V
-
-
V
VDD = 5.0V  
2.0  
2.5  
mA  
10. Optical Characteristics  
Item  
Symbol  
Condition  
Min  
Typ  
Max  
Unit  
θ
θ
θ
θ
CR≥2  
CR≥2  
CR≥2  
CR≥2  
0
0
0
0
-
-
-
-
30  
60  
45  
45  
ψ= 180°  
ψ= 0°  
View Angle  
ψ= 90°  
ψ= 270°  
Contrast Ratio  
Response Time  
CR  
-
-
5
-
-
T rise  
T fall  
-
-
-
-
200  
250  
300  
350  
ms  
ms  
Page | 7  
 
 
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
11. Backlight Information  
Parameter  
Symbol Condition  
Min  
Typ  
Max  
Unit  
Notes  
Supply Current  
ILED  
V
V=3.5v  
10  
32  
40  
mA  
(1)(2)  
Supply Voltage  
Reverse Voltage  
-
-
3.4  
-
3.5  
-
3.6  
5
V
V
-
-
VR  
Luminance  
(without LCD)  
IV  
ILED=32mA  
496  
-
620  
50K  
-
-
cd/m2  
Hrs  
-
ILED=32mA  
25°C, 50-  
60% RH  
LED Lifetime  
-
(1)(2)  
Color  
White  
Notes:  
(1) Supply current minimum value is only for reference since the LED brightness efficiency keeps enhancing.  
Current consumption becomes less and less to achieve the same luminance.  
(2) Lifetime is defined as the amount of time when the luminance has decayed to <50% of the initial value (50K  
hours is an estimate for reference only).  
Page | 8  
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
12. LCD Module Precautions  
The precautions below should be followed when using LCD modules to help ensure personal safety,  
module performance, and compliance of environmental regulations.  
12.1. Modules  
• Avoid applying excessive shocks to module or making any alterations or modifications to it.  
• Do not make extra holes on the printed circuit board, modify its shape or change the  
components of LCD display module.  
• Do not disassemble the LCD display module.  
• Do not operate the LCD display module above the absolute maximum rating.  
• Do not drop, bend or twist the LCD display module.  
• Soldering: only to the I/O terminals.  
• Store in an anti-static electricity container and clean environment.  
• It is common to use the "screen saver" to extend the lifetime of the LCD display module.  
o Do not use the fixed information for long periods of time in real application.  
o Do not use fixed information in LCD panel for long periods of time to extend "screen burn"  
effect time.  
• Crystalfontz has the right to change the passive components, including R3, R6 & backlight  
adjust resistors. (Resistors, capacitors and other passive components will have different  
appearance and color caused by the different supplier.)  
• Crystalfontz have the right to change the PCB Rev. (In order to satisfy the supplying stability,  
management optimization and the best product performance, etc., under the premise of not  
affecting the electrical characteristics and external dimensions, Crystalfontz has the right to  
modify the version.).  
12.2. Handling Precautions  
• Since the display panel is made of glass, do not apply mechanical impacts such as dropping  
from a high position.  
• If the display panel is accidently broken, and the internal organic substance leaks out, be  
careful not to inhale or touch the organic substance.  
• If pressure is applied to the display surface or its neighborhood of the LCD display module, the  
cell structure may be damaged, so be careful not to apply pressure to these sections.  
• The polarizer covering the surface of the LCD display module is soft and can be easily  
scratched. Please be careful when handling the LCD display module.  
• Clean the surface of the polarizer covering the LCD display module if it becomes soiled using  
following adhesion tape.  
o Scotch Mending Tape No. 810 or an equivalent  
o Never breathe the soiled surface or wipe the surface using a cloth containing solvent  
such as ethyl alcohol, since the surface of the polarizer will become cloudy.  
o The following liquids/solvents may spoil the polarizer:  
-
-
-
Water  
Ketone  
Aromatic Solvents  
• Hold the LCD display module very carefully when placing the LCD display module into the  
system housing.  
• Do not apply excessive stress or pressure to the LCD display module. And, do not over bend  
the film with electrode pattern layouts. These stresses will influence the display performance.  
Also, be sure to secure the sufficient rigidity for the outer cases.  
Page | 9  
 
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
• Do not apply stress to the LSI chips and the surrounding molded sections.  
• Do not disassemble or modify the LCD display module.  
• Do not apply input signals while the logic power is off.  
• Pay sufficient attention to the working environments when handing the LCD display module to  
prevent occurrence of element breakage accidents by static electricity.  
o Be sure to make human body grounding when handling LCD display modules.  
o Be sure to ground tools to use for assembly such as soldering irons.  
o To suppress generation of static electricity, avoid carrying out assembly work under dry  
environments.  
o Protective film is being applied to the surface of the display panel of the LCD display  
module. Be careful since static electricity may be generated when exfoliating the  
protective film.  
• Protection film is being applied to the surface of the display panel and removes the protection  
film before assembling it. At this time, if the LCD display module has been stored for a long  
period of time, residue adhesive material of the protection film may remain on the surface of  
the display panel after the film has been removed. In such a case, remove the residue material  
by the method discussed above.  
• If electric current is applied when the LCD display module is being dewed or when it is placed  
under high humidity environments, the electrodes may become corroded. If this happens  
proceed with caution when handling the LCD display module.  
12.3. Storage Precautions  
• When storing the LCD display modules put them in static electricity preventive bags to avoid  
exposure to direct sunlight and fluorescent lamps. Also avoid high temperature and high  
humidity environments and low temperatures (less than 0°C) environments. (We recommend  
you store these modules in the packaged state when they were shipped from Crystalfontz). Be  
careful not to let water drops adhere to the packages or bags, and do not let dew gather on  
them.  
• If electric current is applied when water drops are adhering to the surface of the LCD display  
module the LCD display module may have become dewed. If a dewed LCD display module is  
placed under high humidity environments it may cause the electrodes to become corroded. If  
this happens proceed with caution when handling the LCD display module.  
12.4. Designing Precautions  
• The absolute maximum ratings are the ratings that cannot be exceeded for LCD display  
module. If these values are exceeded, panel damage may happen.  
• To prevent occurrence of malfunctioning by noise pay attention to satisfy the VIL and VIH  
specifications and, at the same time, to make the signal line cable as short as possible.  
• We recommend that you install excess current preventive unit (fuses, etc.) to the power circuit  
(VDD). (Recommend value: 0.5A)  
• Pay sufficient attention to avoid occurrence of mutual noise interference with the neighboring  
devices.  
• As for EMI, take necessary measures on the equipment side.  
• When fastening the LCD display module, fasten the external plastic housing section.  
• If the power supply to the LCD display module is forcibly shut down, by such errors as taking  
out the main battery while the LCD display panel is in operation, we cannot guarantee the  
quality of this LCD display module.  
o Connection (contact) to any other potential than the above may lead to rupture of the IC.  
12.5. Precautions When Disposing of the LCD Display Modules  
• Request the qualified companies to handle the industrial wastes when disposing of the LCD  
display modules. Or, when burning them, be sure to observe the environmental and hygienic  
laws and regulations.  
12.6. Other Precautions  
• When an LCD display module is operated for a long period of time with a fixed pattern, the  
fixed pattern may remain as an after image or a slight contrast deviation may occur.  
o If the operation is interrupted and left unused for a while, normal state can be restored.  
o This will not cause a problem in the reliability of the module.  
Page | 10  
Crystalfontz  
www.crystalfontz.com  
CFAG14432B-TFH-TT Display Module  
Datasheet Release Date 2017-07-21  
• To protect the LCD display module from performance drops by static electricity rapture, etc., do  
not touch the following sections whenever possible while handling the LCD display modules.  
o Pins and electrodes  
o Pattern layouts such as the TCP & FPC  
• With this LCD display module, the LCD driver is being exposed. Generally speaking,  
semiconductor elements change their characteristics when light is radiated according to the  
principle of the solar battery. Consequently, if this LCD driver is exposed to light,  
malfunctioning may occur.  
o Design the product and installation method so that the LCD driver may be shielded from  
light in actual usage.  
o Design the product and installation method so that the LCD driver may be shielded from  
light during the inspection processes.  
• Although this LCD display module stores the operation state data by the commands and the  
indication data, when excessive external noise, etc. enters into the module, the internal status  
may be changed. Therefore, it is necessary to take appropriate measures to suppress noise  
generation or to protect from influences of noise on the system design.  
• We recommend that you construct its software to make periodical refreshment of the operation  
statuses (re-setting of the commands and re-transference of the display data), to cope with  
catastrophic noise.  
• Resistors, capacitors, and other passive components will have different appearance and color  
caused by the different supplier.  
• Crystalfontz has the right to upgrade and modify the product function.  
The limitation of FPC bending:  
Page | 11  

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