40x2 Character LCD Module from Crystalfontz

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40x2 Character LCD ModulePart Number: CFAH4002A-TMI-JTStandard 40x2 Character LCD – White On BlueIf you need to display a lot of information on your device, this extra wide LCD will do the job with an active area of 5.8-inches (147.50 millimeters). The 5x8 character matrix on this transmissive STN 40 x 2 LCD screen is good for typical office lighting and is easy to read in dark locations. One of our customers bought a display in the CFAH4002A series to use in an environmental control system for irrigation management.
Key Features2 lines with 40 characters each, industry standard 40x2 form factor
The built-in alphanumeric set supports Japanese and English text
Built-in Sitronix ST7066U or compatible controller.
Adjust backlight contrast by using PWM (Pulse Width Modulation)
As with other standard character displays, the parallel interface communicates with your host using 4-bit or 8-bit mode. The built-in Sitronix ST7066U controller is compatible with the industry standard Hitachi HD44780 controller. Software written for the HD44780 should work without any changes. For controller details, see the Sitronix ST7066U datasheet on our website.
Our goal is to keep every product available as long as possible. We've sold the CFAH4002A series since 2008 and it is still going strong. For the white LED backlight, a simple current limiting resistor in line with the voltage source works well in most applications. The white LEDs do not demand a current source, although one may be used. For details, see the backlight section starting on page 22 of the datasheet.
Need more information? Our in-house Technical Support team will answer your interface and connection questions.
Product VariationsColorsDark on Yellow-Green
Yellow-Green LED BacklightWhite on Blue
White LED Backlight

 square_foot Physical Characteristics
Physical Characteristics

        Characters x Lines
            40 x 2


    Module Overall        width
        height
        depth
		  

        millimeters
        182
        33.5
        13.6
    

        inches
        7.17
        1.32
        0.54
    


    PCB Outline        width
        height
        depth
		  

        millimeters
        182
        33.5
        13.6
    

        inches
        7.17
        1.32
        0.54
    


        Diagonal Dimension
            5.82"


    Viewing Area        Width
        Height
		  

        millimeters
        154.4
        16.5
    

        inches
        6.08
        0.65
    


    Active Area        Width
        Height
		  

        millimeters
        147.5
        11.5
    

        inches
        5.81
        0.45
    


    Character Size        Width
        Height
		  

        millimeters
        3.2
        5.55
    

        inches
        0.126
        0.219
    


    Character Pitch        Width
        Height
		  

        millimeters
        3.7
        5.95
    

        inches
        0.146
        0.234
    


    Dot Size        Width
        Height
		  

        millimeters
        0.6
        0.65
    

        inches
        0.024
        0.026
    


    Dot Pitch        Width
        Height
		  

        millimeters
        0.65
        0.7
    

        inches
        0.026
        0.028
    


        Weight
            98g
Pin Count
            16

 visibility Optical Characteristics
Optical Characteristics

        Glass Type/Glass Color
            STN/Blue
Polarizer
            Transmissive
View Direction
            6 o'clock


        Backlight Color
            White
Backlight Type
            LED
Mode
            Negative
Foreground Color
            White
Background Color
            Blue

 electric_bolt Electrical Specification
Electrical Specifications

        Module Connector Pitch
            0.1mm

 nature Environmental
Environmental

    Operating Temperatures        min
        max
		  

        Celsius
        -20°
        70°
    

        Fahrenheit
        -4°
        158°
    


    Storage Temperatures        min
        max
		  

        Celsius
        -30°
        80°
    

        Fahrenheit
        -22°
        176°
    


    Humidity        min
        max
		  

        Non-condensing
        0%
        90%
    

 cable Electronics
Electronics

        Controller Documents
            Sitronix ST7066U
Dot Matrix LCD Controller/Driver
Interface
            4-bit Parallel, 8-bit Parallel

 picture_as_pdf Datasheets
picture_as_pdfCFAH4002A Series Datasheet

Previous Versions of Datasheetpicture_as_pdfCFAH4002ATMIJT v1.0.pdf
(Datasheet V 1.0)
 download Files and Downloads
folder_zip CAD Export - CFAH4002A-***-JT Series 2D CAD
picture_as_pdf 1 to 1 Template - CFAH4002A-***-JT Series 1 to 1 Module Outline
link Demo Code Repository on Github
 assured_workload Compliance Documents
 picture_as_pdf Declaration of Conformity RoHS2 
 picture_as_pdf Declaration of Conformity REACH

                       
                       
                                            
                            
                        
                                 

                    


Need a written quote? Add to cart, then enter your email address in the "request a quote" box.
 Quantity:
              
            
Price: 

    
        
            Quantity
            Unit Price
        

            1
            $21.34

            10
            $18.84

            20
            $18.20

            50
            $17.57

            100
            $17.32

            200
            $17.18

            300 *
            $16.30

            500 *
            $16.17

            1000 *
            $14.96

240 Units In-Stock & Ready To Ship
 Pricing is subject to change.
* Contact us about potential lead times.
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Colors	Dark on Yellow-Green Yellow-Green LED Backlight White on Blue White LED Backlight

Module Overall	width	height	depth
millimeters	182	33.5	13.6
inches	7.17	1.32	0.54

PCB Outline	width	height	depth
millimeters	182	33.5	13.6
inches	7.17	1.32	0.54

Viewing Area	Width	Height
millimeters	154.4	16.5
inches	6.08	0.65

Active Area	Width	Height
millimeters	147.5	11.5
inches	5.81	0.45

Character Size	Width	Height
millimeters	3.2	5.55
inches	0.126	0.219

Character Pitch	Width	Height
millimeters	3.7	5.95
inches	0.146	0.234

Dot Size	Width	Height
millimeters	0.6	0.65
inches	0.024	0.026

Dot Pitch	Width	Height
millimeters	0.65	0.7
inches	0.026	0.028

Operating Temperatures	min	max
Celsius	-20°	70°
Fahrenheit	-4°	158°

Storage Temperatures	min	max
Celsius	-30°	80°
Fahrenheit	-22°	176°

Humidity	min	max
Non-condensing	0%	90%

Quantity	Unit Price
1	$21.34
10	$18.84
20	$18.20
50	$17.57
100	$17.32
200	$17.18
300 *	$16.30
500 *	$16.17
1000 *	$14.96

Notices

Part Change Notices

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Product Update #10615: White LED backlight improvements: Less current, increased luminance.

Products Affected:	CFAH4002A-TFH-JT, CFAH4002A-TMI-JT
Date Issued:	September 26, 2014
Summary:	White LED backlight improvements: Less current, increased luminance.
Description:	Improvements to the white LED have resulted in less current with an increased luminance. Old Specifications: Typical Forward current of 60 mA at a forward voltage of 3.5v. Maximum forward voltage of 3.9v. Luminous intensity of 10 cd /m^2 New Specifications: Typical Forward current of 48 mA at a forward voltage of 3.5v. Maximum current of 75 mA Minimum current of 43.2 mA Maximum forward voltage of 3.6v Minimum forward voltage of 3.4v Luminous intensity of 133 to 167 cd /m^2 @ 48 mA Revised datasheet to follow.
Reason:	Improvements in white LED manufacturing have resulted in brighter, longer lasting LEDs that require less current. These improved LEDs have been designed into the backlight assembly of the CFAH4002A.
Impact:	All white LED backlight based CFAH4002A products.
Recommendation:	Review backlight driving circuits for white LED backlight CFAH4002A display modules and make the appropriate adjustments.
Availability:	This update effects all currently shipping CFAH4002A displays based on the white LED backlight.
Price Change:	There is no price change as a result of these improvements at this time.

Part Change Notices

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40x2 Character LCD Module

Part Number: CFAH4002A-TMI-JT

Standard 40x2 Character LCD – White On Blue

Key Features

Product Variations

Colors

Physical Characteristics

Optical Characteristics

Electrical Specifications

Environmental

Electronics

Part Change Notices

Subscribe to Part Change Notices by email or RSS

Product Update #10615: White LED backlight improvements: Less current, increased luminance.

Part Change Notices

LCD Software

User Forum

Tech Support

Glass Type/Glass Color	STN/Blue
Polarizer	Transmissive
View Direction	6 o'clock

Backlight Color	White
Backlight Type	LED
Mode	Negative
Foreground Color	White
Background Color	Blue

Controller Documents	Sitronix ST7066U Dot Matrix LCD Controller/Driver
Interface	4-bit Parallel, 8-bit Parallel

Weight	98g
Pin Count	16