20x4 Parallel Character OLED from Crystalfontz

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20x4  Parallel Character OLEDPart Number: CFAL2004A-YConsider using this 4x20 character yellow OLED to possibly lower the power requirements for designs using a STN character display. 
	Also available in other color variations  (minimum order may be required)
	8-bit or 4-bit parallel interface
The WS0010 controller interface is very similar to industry standard Hitachi HD44780.
	Operating temperature range from -40°C to 80°.
 square_foot Physical Characteristics
Physical Characteristics

        Characters x Lines
            20 x 4

    Module Overall        width
        height
        depth
		  
        millimeters
        98
        60
        10
    
        inches
        3.86
        2.36
        0.39
    
    PCB Outline        width
        height
        depth
		  
        millimeters
        98
        60
        10
    
        inches
        3.86
        2.36
        0.39
    
        Diagonal Dimension
            2.88"

    Viewing Area        Width
        Height
		  
        millimeters
        77
        25.2
    
        inches
        3.03
        0.99
    
    Active Area        Width
        Height
		  
        millimeters
        70.16
        20.95
    
        inches
        2.76
        0.83
    
    Character Size        Width
        Height
		  
        millimeters
        2.9
        4.75
    
        inches
        0.114
        0.187
    
    Character Pitch        Width
        Height
		  
        millimeters
        3.54
        5.4
    
        inches
        0.139
        0.213
    
    Dot Size        Width
        Height
		  
        millimeters
        0.54
        0.55
    
        inches
        0.021
        0.022
    
    Dot Pitch        Width
        Height
		  
        millimeters
        0.59
        0.6
    
        inches
        0.023
        0.024
    
        Weight
            48g

 visibility Optical Characteristics
Optical Characteristics

        Glass Type
            OLED
Polarizer
            Emissive

        Mode
            Positive
Foreground Color
            Yellow
Background Color
            Black

 electric_bolt Electrical Specification
Electrical Specifications

        Supply Voltage for Logic Minimum
            4.8V
Supply Voltage for Logic Maximum
            5.3V
Supply Voltage for Logic Typical
            5V

        Supply Current Typical
            55mA
Module Connector Pitch
            2.54mm

 nature Environmental
Environmental

    Operating Temperatures        min
        max
		  
        Celsius
        -40°
        80°
    
        Fahrenheit
        -40°
        176°
    
    Storage Temperatures        min
        max
		  
        Celsius
        -40°
        80°
    
        Fahrenheit
        -40°
        176°
    
    Humidity        min
        max
		  
        Non-condensing
        0%
        90%
    
 cable Electronics
Electronics

        Controller Documents
            Winstar Display WS0010

Interface
            4-bit Parallel, 8-bit Parallel, SPI

 picture_as_pdf Datasheets
picture_as_pdfCFAL2004AY Datasheet

 download Files and Downloads
folder_zip Software Source - Arduino / Seeediuno Demo Sketch
link Fork this on Github
link Arduino Demo Code Download on Github
link Arduino Demo Code Respository 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
            $42.87

            10
            $39.49

            20
            $38.16

            50
            $36.82

            100
            $34.76

            200
            $34.51

            300
            $32.75

            500
            $32.51

            1000 *
            $30.04

660 Units In-Stock & Ready To Ship
 Pricing is subject to change.
* Contact us about potential lead times.

Module Overall	width	height	depth
millimeters	98	60	10
inches	3.86	2.36	0.39

PCB Outline	width	height	depth
millimeters	98	60	10
inches	3.86	2.36	0.39

Viewing Area	Width	Height
millimeters	77	25.2
inches	3.03	0.99

Active Area	Width	Height
millimeters	70.16	20.95
inches	2.76	0.83

Character Size	Width	Height
millimeters	2.9	4.75
inches	0.114	0.187

Character Pitch	Width	Height
millimeters	3.54	5.4
inches	0.139	0.213

Dot Size	Width	Height
millimeters	0.54	0.55
inches	0.021	0.022

Dot Pitch	Width	Height
millimeters	0.59	0.6
inches	0.023	0.024

Operating Temperatures	min	max
Celsius	-40°	80°
Fahrenheit	-40°	176°

Storage Temperatures	min	max
Celsius	-40°	80°
Fahrenheit	-40°	176°

Humidity	min	max
Non-condensing	0%	90%

Quantity	Unit Price
1	$42.87
10	$39.49
20	$38.16
50	$36.82
100	$34.76
200	$34.51
300	$32.75
500	$32.51
1000 *	$30.04

Notices

Part Change Notices

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Part Change Notice #11313: PCB Modification

Products Affected:	CFAL2004A-Y, CFAL1602H0-Y
Date Issued:	January 14, 2025
Summary:	PCB Modification
Description:	The PCB is being modified to accommodate a new IC in the boost circuit. The boost circuit is not used on this OLED variant and does not affect the functionality.
Reason:	The IC is being changed to address lead time issues.
Availability:	Contact Crystalfontz Support for up-to-date information by emailing support@crystalfontz.com.

Part Change Notice #11101: Reset Pin Change

Products Affected:	CFAL2004A-Y, CFAL2002A-Y, CFAL1602L0-Y, CFAL1202A-Y, CFAL5016A-Y, CFAL0802A-Y, CFAL1602C-B, CFAL1602C-W, CFAL1602C-Y
Date Issued:	August 17, 2021
Summary:	Reset Pin Change
Description:	RST and CST, the components in the RC filter for the reset pin, are being modified. RST will be 33kOhms and CST will be 1uF.
Reason:	Some reset circuits have shown not to be strong enough to drive the reset pin within the specified timing. If the reset circuit is not strong enough, the controller will not properly reset which causes abnormal behavior.

Part Change Notice #11077: Small Layout Change

Products Affected:	CFAL2004A-Y, CFAL2002A-Y, CFAL1602L0-Y, CFAL1202A-Y, CFAL5016A-Y, CFAL0802A-Y, CFAL1602C-W, CFAL1602C-Y, CFAL1602C-YT, CFAL1602C-PW, CFAL1602C-PY, CFAL5016A-PY
Date Issued:	February 10, 2021
Summary:	Small Layout Change
Description:	Changing manufacturing locations of the wafers used in the controller chip. The layout has to be slightly modified to accommodate the practices at the new facility. The functionality will remain the same.
Reason:	Changing manufacturing locations due to the wafer process no longer being supported by the original facility.

Part Change Notice #11032: Bezel Change

Product Affected:	CFAL2004A-Y
Date Issued:	January 22, 2019
Summary:	Bezel Change
Description:	The Bezel will be modified to add 2 holes on each of the right and left sides of the Bezel.
Reason:	This will improve the Bezel alignment and installation during the assembly process.
Impact:	This will not affect the operation of the display.
Recommendation:	None
Availability:	The displays with the revised Bezels will be available after current stock is depleted.
Price Change:	None

Product Update #10491: (New Product) CFAL2004A-Y

New Product:	CFAL2004A-Y
Date Issued:	May 6, 2013
Summary:	(New Product) CFAL2004A-Y
Description:	OLED Modules: Parallel Character OLED 20x4, RoHS Compliant, Yellow, -40°C to +80°C

Product Update #10396: (New Product) CFAL2004A-Y

New Product:	CFAL2004A-Y
Date Issued:	January 13, 2012
Summary:	(New Product) CFAL2004A-Y
Description:	Under OLED Modules: Parallel Character OLED 20x4, RoHS Compliant, Yellow, -20°C - +70°C

Part Change Notices

Subscribe to Part Change Notices by
email or RSS for CFAL2004A-Y

20x4 Parallel Character OLED

Part Number: CFAL2004A-Y

Physical Characteristics

Optical Characteristics

Electrical Specifications

Environmental

Electronics

Part Change Notices

Subscribe to Part Change Notices by email or RSS

Part Change Notice #11313: PCB Modification

Part Change Notice #11101: Reset Pin Change

Part Change Notice #11077: Small Layout Change

Part Change Notice #11032: Bezel Change

Product Update #10491: (New Product) CFAL2004A-Y

Product Update #10396: (New Product) CFAL2004A-Y

Part Change Notices

LCD Software

User Forum

Tech Support

Mode	Positive
Foreground Color	Yellow
Background Color	Black

Supply Voltage for Logic Minimum	4.8V
Supply Voltage for Logic Maximum	5.3V
Supply Voltage for Logic Typical	5V

Supply Current Typical	55mA
Module Connector Pitch	2.54mm

Controller Documents	Winstar Display WS0010
Interface	4-bit Parallel, 8-bit Parallel, SPI

Glass Type	OLED
Polarizer	Emissive