Red 16x2 RS232 Character LCD from Crystalfontz

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Red 16x2 RS232 Character LCDPart Number: CFA633-RDI-KSRed 16x2 Full-swing RS-232 serial LCD, Fan support, Keypad, RoHS / REACH Compliant, Red LED Backlight, FFSTN Negative, Transmissive, -20°C ~ +70°C operation, 6:00 viewing angle.
	Robust packet based communications protocol with 16-bit CRC.
	Compact size: fits in a 1U rack mount case (35 mm overall height).
	Advanced digital GPIO control with PWM output.
	Four fan connectors with RPM monitoring or variable PWM fan power control
NOTE: Not recommended for use with 4-Wire fans.
	Available in a 5.25" half-height LCD drive bay kit
	ATX power supply control functionality allows the buttons on the CFA-633 to replace the "power" and "reset" buttons on your system, simplifying your front panel design.
	Temperature monitoring: up to 32 channels at up to 0.5 deg C absolute accuracy. Ready-to-use WRDOWY17 Dallas Semiconductor 1-Wire temperature sensors are optional. Alternatively, you can create your own sensors using DS1822 or DS18B20 parts and the tutorial on creating temperature sensors.
	Integrated LED backlit 6-button translucent silicon keypad with screened legend.
	"Fail-Safe" fan power setting allows safe host fan control based on temperature.
	Non-volatile memory ("EEPROM") capability: Customize the "power-on" display settings plus a 16-byte "scratch" register for storing IP, netmask, system serial number, etc.

Not sure which RS232 display module to choose? Compare all of our intelligent display modules.

Currently Shipping: HW Version 2.1, Firmware Version: S2v2

Product VariationsInterfacesRS232USB
ColorsDark on Light Gray
White LED BacklightRed on Dark
Red LED BacklightWhite on Blue
White LED BacklightDark on Yellow-Green
Yellow-Green LED Backlight

 square_foot Physical Characteristics
Physical Characteristics

        Characters x Lines
            16 x 2


    Module Overall        width
        height
        depth
		  

        millimeters
        110.5
        35
        25.6
    

        inches
        4.35
        1.38
        1.01
    
*depth doesn't include Keypad


    PCB Outline        width
        height
		  

        millimeters
        110.5
        35
    

        inches
        4.35
        1.38
    


        Diagonal Dimension
            2.26"


    Viewing Area        Width
        Height
		  

        millimeters
        61
        15.8
    

        inches
        2.40
        0.62
    


    Active Area        Width
        Height
		  

        millimeters
        56.2
        11.5
    

        inches
        2.21
        0.45
    


    Character Size        Width
        Height
		  

        millimeters
        2.95
        5.55
    

        inches
        0.116
        0.219
    


    Character Pitch        Width
        Height
		  

        millimeters
        3.55
        5.95
    

        inches
        0.140
        0.234
    


    Dot Size        Width
        Height
		  

        millimeters
        0.55
        0.65
    

        inches
        0.022
        0.026
    


    Dot Pitch        Width
        Height
		  

        millimeters
        0.6
        0.7
    

        inches
        0.024
        0.028
    


        Weight
            45g


        Keystroke Travel
            2.4mm

 visibility Optical Characteristics
Optical Characteristics

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


        Backlight Color
            Red
Backlight Type
            LED
Mode
            Negative
Foreground Color
            Red
Background Color
            Dark

 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

        Interface
            RS232

 picture_as_pdf Datasheets
picture_as_pdfCFA633-RDI-KS Data Sheet Release Date 2012-02-21.pdf
(Hardware 2.0, Firmware s2v1)
Previous Versions of Datasheetpicture_as_pdfCFA633-RDI-KS Data Sheet v3.2.pdf
(Datasheet V 3.2, Hardware 2.0, Firmware s2.0)
 download Files and Downloads
folder_zip Hardware Design - 3D Model
folder_zip CAD Export - CFA633-XXX-KS v2.0 2D CAD
picture_as_pdf 1 to 1 Template - CFA633-XXX-KS v2.0 1 TO 1.PDF
 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
            $25.00

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

         

Interfaces	RS232 USB

Colors	Dark on Light Gray White LED Backlight Red on Dark Red LED Backlight White on Blue White LED Backlight Dark on Yellow-Green Yellow-Green LED Backlight

Module Overall	width	height	depth
millimeters	110.5	35	25.6
inches	4.35	1.38	1.01
*depth doesn't include Keypad

PCB Outline	width	height
millimeters	110.5	35
inches	4.35	1.38

Viewing Area	Width	Height
millimeters	61	15.8
inches	2.40	0.62

Active Area	Width	Height
millimeters	56.2	11.5
inches	2.21	0.45

Character Size	Width	Height
millimeters	2.95	5.55
inches	0.116	0.219

Character Pitch	Width	Height
millimeters	3.55	5.95
inches	0.140	0.234

Dot Size	Width	Height
millimeters	0.55	0.65
inches	0.022	0.026

Dot Pitch	Width	Height
millimeters	0.6	0.7
inches	0.024	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	$25.00

Notices

Part Change Notices

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End-Of-Life #11263: End-Of-Life Notification

Product Affected:	CFA633-RDI-KS
Date Issued:	March 20, 2024
Summary:	End-Of-Life Notification
Description:	These products are being discontinued and will no longer be offered once the current inventory is depleted.
Reason:	These products have reached the end of their lifecycle and are being phased out.
Recommendation:	The CFA633-YYH-KS, CFA633-TMI-KS, and CFA633-TFH-KS variants are still available. The only difference is the color of the LCD.
Availability:	Contact Crystalfontz Support for up-to-date information by emailing support@crystalfontz.com.

Part Change Notice #11243: Keypad LED Change

Products Affected:	CFA533-YYH-KS, CFA533-YYH-KU, CFA533-TMI-KS, CFA533-TMI-KU, CFA533-YYH-KL, CFA533-TMI-KL, CFA533-YYH-KC, CFA533-TMI-KC, CFA533-YYH-KI, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA633-RDI-KU, CFA633-RDI-KS, CFA533-TFH-KU, CFA533-TFH-KS, CFA633-TFH-KU, CFA633-TFH-KS, CFA533-TFH-KL, CFA533-TFH-KC
Date Issued:	October 4, 2023
Summary:	Keypad LED Change
Description:	The keypad LEDs are changing to an alternative LED. There is no visual difference.
Reason:	Switching suppliers to improve manufacturability.
Availability:	Contact Crystalfontz Support for up-to-date information by emailing support@crystalfontz.com.

Part Change Notice #10730: CFA633 series Firmware revision 2.1 to 2.2

Products Affected:	CFA633-YYB-KS, CFA633-TMC-KS, CFA633-RMC-KS, CFA633-YYB-KU, CFA633-TMC-KU, CFA633-RMC-KU, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA633-RDI-KU, CFA633-RDI-KS, CFA633-TFH-KU, CFA633-TFH-KS
Date Issued:	September 30, 2016
Summary:	CFA633 series Firmware revision 2.1 to 2.2
Last revision:	2.0
Description:	The CFA633 series of advanced display modules will be changing from the current firmware v2.1 to v2.2. Design changes were made for backwards compatibility.
Reason:	As part of our continuous improvement, firmware has been updated for use with updated hardware for the CFA633 series of advanced display modules.
Impact:	Command 1 (0x01): Get Hardware & Firmware Version This command will now report the following strings Serial versions (-KS suffix): "CFA633:h2.1,s2v2" USB version (-KU suffix): "CFA633:h2.1,u2v2"
Recommendation:	CFA633 firmware version 2.2 is considered a fit and form replacement. Testing of new firmware is recommended when the new hardware version 2.1 is available.
Availability:	CFA633 hardware v2.1 is scheduled to begin shipping Q1 2017 after current inventory of hardware v2.0 is depleted following FIFO standards. Engineering samples for testing / validation will be available during this same time frame.
Price Change:	No price change is currently scheduled.

Part Change Notice #10729: CFA633 series Hardware revision 2.0 to 2.1

Products Affected:	CFA633-YYB-KS, CFA633-TMC-KS, CFA633-RMC-KS, CFA633-YYB-KU, CFA633-TMC-KU, CFA633-RMC-KU, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA633-RDI-KU, CFA633-RDI-KS, CFA633-TFH-KU, CFA633-TFH-KS
Date Issued:	September 30, 2016
Summary:	CFA633 series Hardware revision 2.0 to 2.1
Last revision:	2.0
Description:	The CFA633 series of advanced display modules will be changing from the current hardware v2.0 to v2.1. Design changes were made for backwards compatibility.
Reason:	As part of our continuous improvement, design changes have been made to the hardware of the CFA633 series of advanced display modules for improved manufacturability, improved quality, and a lower current profile.
Impact:	Factory default configuration has no functional changes. Standard and custom configurations are not affected by the new hardware layout. CFA633 hardware version 2.1 should replace previous version of the CFA633 with no physical changes and is considered a fit and form replacement. Six 0 ohm resistors have been added as factory default for closing the following jumpers: JPGPIO -> RJPGPIO JP8 -> RJP8 JP2 -> RJP2 JP4 -> RJP4 JP6 -> RJP6 JP8 -> RJP8 -KU builds only: JPUSBPER -> RJPUSBPWR Solder jumper are still in place for configuration after jumper resistor removed. Jumpers will appear open. Configuration changes not performed by Crystalfontz America, Inc. will need to make note of this manufacturing change.
Recommendation:	CFA633 hardware version 2.1 is considered a fit and form replacement. Testing of new hardware is recommended when available.
Availability:	CFA633 hardware v2.1 is scheduled to begin shipping Q1 2017 after current inventory of HW v2.0 is depleted following FIFO standards. Engineering samples for testing / validation will be available during this same time frame.
Price Change:	No price change is currently scheduled.

Part Change Notice #10658: Deprecation of "Drive Bay Kit Configurator" / New part numbers for drive bay kits.

Products Affected:	CFA631-RMF-KU1, CFA631-RMF-KU2, CFA631-RMF-KU, CFA633-YYB-KS, CFA633-TMC-KS, CFA633-RMC-KS, CFA633-YYB-KU, CFA633-TMC-KU, CFA633-RMC-KU, CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA631-TMF-KU, CFA635-TFE-KU, CFA635-YYE-KL, CFA635-TMF-KU, CFA635-YYE-KU, DS635-AL, DS635-BG, DS635-BK, DS635-AK, CFA533-YYH-KS, CFA533-YYH-KU, CFA533-TMI-KS, CFA533-TMI-KU, CFA533-YYH-KL, CFA533-TMI-KL, CFA533-YYH-KC, CFA533-TMI-KC, CFA533-YYH-KI, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA632-YFH-KS, CFA632-YDI-KS, CFA632-YFH-KU, CFA632-YDI-KU, CFA634-TFH-KS, CFA634-TMI-KS, CFA634-YFH-KS, CFA634-YDI-KS, CFA634-TFH-KU, CFA634-TMI-KU, CFA634-YFH-KU, CFA634-YDI-KU, CFA633-RDI-KU, CFA633-RDI-KS, CFA533-TFH-KU, CFA533-TFH-KS, CFA633-TFH-KU, CFA633-TFH-KS, CFA533-TFH-KL, CFA533-TFH-KC, CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT, CFA631-RMF-KU32, CFA631-RMF-KU128, CFA631-RMF-KU160, CFA631-RMF-KU33, CFA631-RMF-KU129, CFA631-RMF-KU161, CFA631-RMF-KU-162, CFA632-YDI-KL, CFA632-YDI-KN, CFA632-YDI-KC, CFA632-YDI-KP, CFA632-YFH-KL, CFA632-YFH-KN, CFA632-YFH-KC, CFA632-YFH-KP, CFA634-YDI-KC, CFA634-TMI-KC, CFA634-YFH-KC, CFA634-TFH-KC, CFA634-YFH-KL, CFA634-TFH-KL, CFA634-TMI-KL, CFA634-YDI-KL, CFA634-TFH-KP, CFA634-YFH-KP, CFA634-TMI-KP, CFA634-YDI-KP, CFA634-TFH-KN, CFA634-YFH-KN, CFA634-TMI-KN, CFA634-YDI-KN, CFA631P-TMF-KU
Date Issued:	July 1, 2015
Summary:	Deprecation of "Drive Bay Kit Configurator" / New part numbers for drive bay kits.
Description:	Starting August 1, 2015 the "Drive Bay Kit Configurator" located at https://www.crystalfontz.com/products/select_kit.html will no longer be functional for ordering one of our Serial or USB displays (CFA533, CFA631, CFA632, CFA633, CFA634, CFA635, and CFA735) in a bracket or SLED. This functionality is being moved to the Customize and Add to Cart process when checking out. This will allow for further customization by our customers to better fit their needs. This change will eliminate the current "kits", but will add options not previously available such as pre-configured ATX functionality, and ALL the currently available interfaces will be orderable in a drive bay bracket or SLED. The new part numbers will have the bracket / SLED and overlay type as a PREFIX to the configured part number. The choice for bracket / SLED to a display order will be via the cart options. Our CFA835 displays were introduced with these configuration options. To see how the new options will look, and what the new part numbers will look like, please see one of our CFA835 parts: https://www.crystalfontz.com/cart/addtocart.php?product_id=2277&qty=1 NOTE: The SLED is only available for the CFA635, CFA735, and CFA835 products.
Reason:	As part of our continuous improvement process, we are integrating the ordering of displays in drive bay and SLED kits as part of the display ordering process.
Impact:	Drive bay kits in their current configuration will no longer be available.
Recommendation:	Place orders prior to 2015-08-01 for upcoming production needs via our website or by contacting our logistics department via email: sales@crystalfontz.com, or by calling 1-888-206-9720 (International call +1-509-892-1200). After the 2015-08-01, please contact our engineering department via support@crystalfontz.com to assist you with ordering your bracket / SLED kits.
Availability:	Starting 2015-08-01, the bracket and SLED options for our serial and USB display will be part of the ordering process for the displays
Price Change:	Pricing bracket / SLED configurations will reflect manufacturing costs.

Part Change Notice #10402: CFA633 Firmware 2v1

Products Affected:	CFA633-YYB-KS, CFA633-TMC-KS, CFA633-RMC-KS, CFA633-YYB-KU, CFA633-TMC-KU, CFA633-RMC-KU, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA633-RDI-KU, CFA633-RDI-KS, CFA633-TFH-KU, CFA633-TFH-KS
Date Issued:	February 13, 2012
Summary:	CFA633 Firmware 2v1
Last revision:	v2.0
Description:	As part of our continuous improvement process, Crystalfontz America, Inc. is releasing a new version of firmware for the 2v0 hardware based CFA633 family of intelligent modules.
Reason:	Fixes: Command 10 (0x0A) Read 8 Bytes of LCD Memory. Corrected the range of data[0] to reflect the native addressing of the LCD controller. Command 11 (0x0B) Set LCD Cursor position. Updated algorithm used for updating cursor location. Corrects potential power-up corruption of boot state with the serial interface (-KS). Enhancements: Command 4 (0x04) Store current state as boot state. Firmware compares stored stated and current state. Returns error if there is a difference. Command 28 (0x1C) Set ATX Power switch functionality. Added auto polarity switch. Improved pulse length functionality, and added feature to hold until system off during power down. Updates: Command 1 (0x01) Get Hardware & Firmware Version. Modules with the serial interface, KS, will report: "CFA633:h2.0,s2v1" Modules with the USB interface, KU, will report: "CFA633:h2.0,u2v1"
Impact:	All CFA633 modules are impacted by the new firmware release.
Recommendation:	It is recommended that all customers migrate to this new firmware release.
Availability:	Starting 2012-03-01 all standard modules will ship with this new version of the firmware. Customers with Defined Part (DP) numbers will not have their modules shipped with this new firmware automatically. Please contact our engineering support team at support@crystalfontz.com.
Price Change:	This update to the firmware does not affect the pricing of the CFA633 family of modules.

Product Update #10346: New Product in Intelligent Serial LCD Modules: CFA633-RDI-KS

New Product:	CFA633-RDI-KS
Date Issued:	June 1, 2011
Summary:	New Product in Intelligent Serial LCD Modules: CFA633-RDI-KS
Description:	CFA-633 Serial LCD 16x2 +Fans +Keypad, RoHS, Red LED Backlight, FFSTN Negative Blue Transmissive -20°C ~ +70°C 6:00

Part Change Notice #10291: Technical Bulletin TB01: Comparison of CFA533 and CFA633 Modules by Version Number

Products Affected:	CFA633-YYB-KS, CFA633-TMC-KS, CFA633-YYB-KU, CFA633-TMC-KU, CFA633-RMC-KU, CFA533-YYH-KS, CFA533-YYH-KU, CFA533-TMI-KS, CFA533-TMI-KU, CFA533-YYH-KL, CFA533-TMI-KL, CFA533-YYH-KC, CFA533-TMI-KC, CFA533-YYH-KI, CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU, CFA633-RDI-KU, CFA633-RDI-KS
Date Issued:	November 10, 2010
Summary:	Technical Bulletin TB01: Comparison of CFA533 and CFA633 Modules by Version Number
Description:	The attached PDF file describes differences between our CFA633 v1.5x and CFA633 v2.0 intelligent display module series. We also list the CFA533 series as a comparison for customers who do not require the fan control available in the CFA633 series. Hardware version numbers are silk screened on the back of the PCBs. Additional information can be found in supporting documents for PCN: https://www.crystalfontz.com/products/document/2371/CFA633_v1-5a_to_v1-5c_changes.pdf https://www.crystalfontz.com/products/pcnfile/10286/PCN_CFA633_2-0.pdf
Reason:	Clarify the differences between the different modules.
Impact:	None.
Attachment:	TB01_Comparison_of_CFA533_and_CFA633_Modules.pdf (86KB)