20x4 Character Enclosed LCD Module from Crystalfontz

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                All existing XES635BKTFEKU products are transitioning to XES635BKTFKKU as part of our continuous improvement process. Once all current stock is depleted, you'll be able to purchase the new part number.          
20x4 Character Enclosed LCD ModulePart Number: XES635BK-TFE-KUUSB LCD 20x4, Keypad, External Enclosure, White Edge LED Backlight, RoHS compliant, FSTN Positive, Transflective, 0°C to +50°C, 12:00 viewing angle. Includes ~9 foot black low-drop captive USB "A" cable.
	LED backlit 20x4 LCD
	Integrated LED backlit 6-button translucent silicon keypad with screened legend
	Four bicolor (red + green) LEDs. The LEDs’ brightness can controlled by the host software, which allows mixing the LEDs to produce other colors (yellow and orange)
	Three color options:
					Yellow-green backlit positive mode LCD, yellow/green keypad backlight ("YYE")
			White backlit negative mode LCD, blue keypad backlight ("TMF")
			White backlit positive mode LCD, white keypad backlight ("TFE")

	Fully decoded keypad: any key combination is valid and unique
	LCD characters are contiguous in both X and Y directions to allow the host software to display "gapless" bar graphs in horizontal or vertical directions
	USB interface for both power and data (115200 baud equivalent throughput)
	Robust packet based communications protocol with 16-bit CRC
	Built-in microcontroller
	RoHS Compliant
	Non-volatile memory capability ("EEPROM"):
					Customize the "power-on" display and LED settings
			16-byte "scratch" register for storing IP, netmask, system serial number

 square_foot Physical Characteristics
Physical Characteristics

        Characters x Lines
            20 x 4

    Module Overall        width
        height
        depth
		  
        millimeters
        146
        39.3
        20.55
    
        inches
        5.75
        1.55
        0.81
    
*depth doesn't include Keypad

        Diagonal Dimension
            3.19"

    Viewing Area        Width
        Height
		  
        millimeters
        80.95
        25.5
    
        inches
        3.19
        1.00
    
    Active Area        Width
        Height
		  
        millimeters
        77.95
        22.35
    
        inches
        3.07
        0.88
    
    Character Size        Width
        Height
		  
        millimeters
        3.85
        5.55
    
        inches
        0.152
        0.219
    
    Character Pitch        Width
        Height
		  
        millimeters
        3.9
        5.6
    
        inches
        0.154
        0.220
    
    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
            339.3g

        Keystroke Travel
            2.4mm

 visibility Optical Characteristics
Optical Characteristics

        Glass Type/Glass Color
            FSTN/Light Gray
Polarizer
            Transflective
View Direction
            12 o'clock
Sunlight Readable
            Yes

        Backlight Color
            White
Backlight Type
            LED
Mode
            Positive
Foreground Color
            Dark
Background Color
            Light Gray

 electric_bolt Electrical Specification
Electrical Specifications

        Module Connector Pitch
            2.54mm

 nature Environmental
Environmental

    Operating Temperatures        min
        max
		  
        Celsius
        0°
        50°
    
        Fahrenheit
        32°
        122°
    
    Storage Temperatures        min
        max
		  
        Celsius
        -10°
        60°
    
        Fahrenheit
        14°
        140°
    
    Humidity        min
        max
		  
        Non-condensing
        0%
        90%
    
 cable Electronics
Electronics

        Interface
            USB

 picture_as_pdf Datasheets
Previous Versions of Datasheetspicture_as_pdfXES635BK-xxx-KU Data Sheet 2012-12-07.pdf
(Datasheet V 2012-12-07, Hardware 3.1, Firmware u2v0)
picture_as_pdfXES635BK-TFE-KU Data Sheet v2.0.pdf
(Datasheet V 2.0, Hardware 3.1, Firmware 1.6)
picture_as_pdfXES635BKTFEKU v1.0.pdf
(Datasheet V 1.0, Hardware 1.0, Firmware 1.4)
 download Files and Downloads
picture_as_pdf 1 to 1 Template

Module Overall	width	height	depth
millimeters	146	39.3	20.55
inches	5.75	1.55	0.81
*depth doesn't include Keypad

Viewing Area	Width	Height
millimeters	80.95	25.5
inches	3.19	1.00

Active Area	Width	Height
millimeters	77.95	22.35
inches	3.07	0.88

Character Size	Width	Height
millimeters	3.85	5.55
inches	0.152	0.219

Character Pitch	Width	Height
millimeters	3.9	5.6
inches	0.154	0.220

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	0°	50°
Fahrenheit	32°	122°

Storage Temperatures	min	max
Celsius	-10°	60°
Fahrenheit	14°	140°

Humidity	min	max
Non-condensing	0%	90%

Notices

Part Change Notices

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Part Change Notice #10853: CFA635 series Firmware revision 2.1.

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	May 3, 2017
Summary:	CFA635 series Firmware revision 2.1.
Last revision:	2.0
Description:	The CFA635 series of advanced display modules will be changing from the previous firmware revision of 2.0 to the new firmware revision 2.1.
Reason:	As part of our continuous improvement, the firmware has been updated for use with the hardware v1.5.
Impact:	The new firmware is designed with a priority of backward compatibility. The following commands will differ from earlier versions: Command 1 (0x01) - Get Hardware and Firmware Version This command will report the following strings: Serial Versions (KS) - CFA635: h1.5,f2.1 USB Versions (KU) - CFA635: h1.5 f2v1 Commands 18,19 and 20, which control the temperature sensors on the FBSCAB, have been limited to support the FBSCAB's maximum of 16 temperature sensors.
Recommendation:	Design changes have been made to maximize backward compatibility. For most applications, the CFA635 hardware revision 1.5 will be a form and fit replacement. If your application uses ATX power supply control, fan control, or temperature measurement through the SCAB, you will need change to the equivalent FBSCAB components. We recommend testing the new version CFA635 in your system to verify compatibility.
Availability:	CFA635 firmware version 2.1 will begin shipping installed in hardware version 1.5 in the second quarter of 2017 after the inventory of hardware version 1.2 is depleted.

Part Change Notice #10852: CFA635 series Hardware revision 1.5

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	May 3, 2017
Summary:	CFA635 series Hardware revision 1.5
Last revision:	1.2
Description:	The CFA635 series of advanced display modules will be changing from the previous hardware revision 1.2 to the new hardware revision 1.5.
Reason:	As part of our continuous improvement, the processor and PCB layout have been changed to improve availability, manufacturability, and quality
Impact:	The revised CFA635 series has Wide Temperature (-20°C to +70°C) operating range. Part numbers have changed accordingly: TMF series modules will become TML series. TFE series modules will become TFK series. YYE series modules will become YYK series. The CFA635 series now supports a single FBSCAB. The SCAB is no longer supported: All four fans may be used on serial (-KS) and logic level (-KL) modules. Maximum temperature sensors is 16. ATX power supply control functions previously supported by J8 on the SCAB are now supported by H1 on the CFA-635. The power supply and backlight circuits have been improved: The backlight driver is a constant current design-the backlight current and brightness are now insensitive to supply voltage variations. The incoming power supply range is 2.5v to 5.5v, so the CFA635 can easily be used in 3.3v systems. The yellow backlight of the CFA635-YYK series is redesigned to improve brightness. ATX functions supported by J8 on the SCAB are now supported by H1. Command 1 (0x01) - Get Hardware and Firmware Version This command will report the following strings: Serial Versions (KS) - CFA635 h1.5,f2.1 USB Versions (KU) - CFA635 h1.5,f2.1 The command set, fan electrical specifications, temperature electrical specifications and mechanical dimensions are unchanged.
Recommendation:	Design changes have been made to maximize backward compatibility. If your application uses ATX power supply control, fan control, or temperature measurement through the SCAB, you will need to change to the equivalent FBSCAB components. We recommend testing the new version CFA635 in your system to verify compatibility.
Availability:	CFA635 hardware version 1.5 will begin shipping in the second quarter of 2017, after the inventory of version 1.2 is depleted.

Part Change Notice #10406: Supporting firmware for the reactivation of the CFA635 family of modules.

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	March 20, 2012
Summary:	Supporting firmware for the reactivation of the CFA635 family of modules.
Last revision:	1v6
Description:	The CFA635 family of modules is being reactivated with a new LCD controller chip, the Rockworks RW1067. The majority of the changes to the firmware have been in support of the RW1067 LCD controller and are transparent to the user interface. The changes to the CFA635 2v0 firmware: For hardware changes related to this firmware update, please see PCN #10405 Updates Command 1 (0x01): Get Hardware & Firmware Version Modules with the serial interface, -KL and -KS suffix, will report: CFA635:h1v2,s2v0 Modules with the USB interface, -KU suffix, will report: CFA635:h1v2, u2v0 Command 12 (0x0C): Set LCD Cursor Style Option 4 = inverting, blinking block is no longer supported. This option will result in a blinking underscore. Command 22 (0x16): Send Command Directly to the LCD Controller Any command sent specifically to the Samsung S6A0073 will need to be reviewed / modified for the commands / registers of the Rockworks RW1067. Please contact the Crystalfontz Engineering Support Team at support@crystalfontz.com for the RW1067 datasheet. Enhancements Command 28 (0x1C): Set ATX Power Switch Functionality Added auto polarity switch. Improved pulse length functionality. Added feature to hold until system off during power down. Fixes Updates to timings and sequence of Serial interface power up to prevent possible corruption of data displayed
Reason:	When the CFA635 family was scheduled for End of Life (see PCN #10365) there was no replacement available for the Samsung S6A0073 LCD controller. The CFA735 family was designed as replacement for the CFA635, allowing a path for improved performance, graphics, and the ability for end users to write their own firmware to take advantage of the capabilities of the enhanced hardware. After the development of the CFA735 family, the RW1067 was developed as a replacement for the Samsung S6A0073 LCD controller for Crystalfontz America, Inc by Rockworks (China).
Impact:	This announcement impacts all variants, interfaces, and part numbers that currently use the CFA635 family of modules. The CFA635 can continue to be used in current and future designs.
Recommendation:	Continue to order and build with the CFA635 as required by production schedules. Transition to the CFA635 1v2 hardware and supporting firmware should be a seamless process. Engineering samples for qualification for the revised CFA635 are scheduled to be available Q3 of 2012.
Availability:	Q2 2012 Review / Update customer Defined Part custom firmware Q3 2012 New hardware and supporting firmware available for engineering samples Estimated - Begin transition to 1v2 hardware as 1v1 hardware inventory is depleted NOTE: We will not ship production orders of 1v2 hardware until the 1v1 inventory is depleted Q4 2012 Estimated - CFA635 1v1 hardware to be exhausted, transition to CFA635 1v2 hardware complete
Price Change:	No scheduled price change at this time.

Part Change Notice #10405: Reactivation of the CFA635 family of modules with 1v2 hardware and supporting firmware.

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	March 20, 2012
Summary:	Reactivation of the CFA635 family of modules with 1v2 hardware and supporting firmware.
Last revision:	1v1
Description:	The CFA635 family of modules is being reactivated with a new LCD controller chip, the Rockworks RW1067. The changes to the CFA635 1v2 hardware are as follows: LCD controller changing from Samsung S6A0073 to Rockworks RW1067 Supporting driving circuitry between the LCD controller and the LCD glass has been updated to support the Rockworks RW1067 The PCB layout has been updated to support the Rockworks RW1067 Firmware updates to support the Rockworks RW1067 and functional improvements – See PCN #10406 The only changes to the CFA635 family are to support the Rockworks RW1067 controller. There are no other physical changes to the CFA635.
Reason:	When the CFA635 family was scheduled for End of Life (see PCN #10365) there was no replacement available for the Samsung S6A0073 LCD controller. The CFA735 family was designed as replacement for the CFA635, allowing a path for improved performance, graphics, and the ability for end users to write their own firmware to take advantage of the capabilities of the enhanced hardware. After the development of the CFA735 family, the RW1067 was developed as a replacement for the Samsung S6A0073 LCD controller for Crystalfontz America, Inc by Rockworks (China).
Impact:	This announcement impacts all variants, interfaces, and part numbers that currently use the CFA635 family of modules. The CFA635 can continue to be used in current and future designs.
Recommendation:	Continue to order and build with the CFA635 as required by production schedules. Transition to the CFA635 1v2 hardware and supporting firmware should be a seamless process. Engineering samples for qualification for the revised CFA635 are scheduled to be available Q3 of 2012.
Availability:	Q2 2012 Review / Update customer Defined Part custom firmware Q3 2012 New hardware and supporting firmware available for engineering samples Estimated - Begin transition to 1v2 hardware as 1v1 hardware inventory is depleted NOTE: We will not ship production orders of 1v2 hardware until the 1v1 inventory is depleted Q4 2012 Estimated - CFA635 1v1 hardware to be exhausted, transition to CFA635 1v2 hardware complete
Price Change:	No scheduled price change at this time.

Part Change Notice #10365: End of Life announcement: CFA635 family of Intelligent Modules.

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	October 6, 2011
Summary:	End of Life announcement: CFA635 family of Intelligent Modules.
Last revision:	HW: v1.1, FW: v1.6
Description:	Effective 2012-03-19: The CFA635 family of modules is no longer End of Life and is recommended for new designs. For a hardware changes please see PCN #10405 For a firmware changes please see PCN #10406 2011-10-06: Effective immediately, Crystalfontz America, Inc is announcing the End of Life (EOL) for the CFA635 family of modules. The CFA635 is a character based intelligent LCD module built around a Cypress PSoC® micro-controller and a Samsung S6A0073 LCD controller. Samsung announced the EOL of the S6A0073 at the end of 2007. After the announcement, Crystalfontz America, Inc began designing a replacement module and planned for continuing to manufacture and support the CFA635 family until a compatible replacement module was designed and available. REVISED: 2011-12-15 REVISED: 2012-03-19
Reason:	As part of our continuous improvement process, the engineering services group at Crystalfontz America Inc. is announcing the End of Life (EOL) to our CFA635 family of modules. This end of life is scheduled to take place at the end of 2012 Q2. The CFA635 is being replaced with the first of a new generation of intelligent modules from Crystalfontz America, Inc. This new module is the CFA735 family. The CFA735 family has been primarily designed to be a replacement for the CFA635 family with a number of enhancements / improvements.
Impact:	This announcement impacts all variants, interfaces, and part numbers that currently use the CFA635 family of modules. The CFA635 family is not recommended for new designs.
Recommendation:	Continue to order and build with the CFA635 as required by schedules. Plan on making transition to the CFA735 family of modules when available. To obtain more information on the CFA635 family replacement, the CFA735 family, please send an email to support@crystalfontz.com. We will provide you the following when available: preliminary datasheet notification of the initial run of CFA735 modules notice of any updates or changes to the CFA735
Availability:	Q4 2011: Pilot run of CFA735 family available CFA735 New product announcement Q1 2012: Final shipments of CFA635 from partner factory Q2 2012: CFA635 begins phase out and inventory draw down Last CFA635 orders accepted Production level shipments of CFA735 start Q3 2012: CFA635 inventory purged CFA735 fully replaces CFA635
Price Change:	There is no scheduled price change to the CFA635 family at this time. Pricing will be reviewed on a monthly basis.
Attachment:	CFA635_EOL_Notes.pdf (75KB)

Part Change Notice #10287: XES635BK Hardware v3.1 / Firmware v1.6

Products Affected:	XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU
Date Issued:	October 12, 2010
Summary:	XES635BK Hardware v3.1 / Firmware v1.6
Last revision:	XES635BK Hardware v1.0 / Firmware v1.4
Description:	HARDWARE REVISION: v3.1 (2010-06-24) Changes since last revision (v1.0) By MET Laboratories: * Product complies with UL60950 CSA C22.2 No. 60950. Product safety certification for Canada, United States, and Europe. * Product complies to CE standards (European safety, health, and environmental standards). * Product passed EU ESD immunity (Electrostatic Discharge) and radiated immunity requirements with no anomalies. * Title 47 of the CFR, Part 15, Subpart B for a Class B Digital Device. * ICES-003 Issue 4, February 7, 2004, Class B. * Product materials are in compliance with the regulations related to the EU Directive 2006/121/EC for Registration, Evaluation, Authorization and Restriction of Chemicals (REACH). Also, by this date: * Cable meets requirements for demonstrating compliance with California Proposition 65. * Factories have ISO certification. * Improved backlight. Display is lit more evenly, contrast can be adjusted to higher, and lifetime is longer. (As of 2008/07/01). * Improved ESD (Electrostatic Discharge) protection for USB cable. Also improved cable strain relief. * We transitioned to an improved keypad from 10.5 millimeters to 12.00 millimeters high. FIRMWARE REVISION v1.6 (2010-05-01) Changes since last revision (v1.4) * Command 1 (0x01): Get Hardware & Firmware Version returns "CFA635:h1.1,v1.6". * Improved reset function to make module less sensitive to supply variations. * Fixed range checking for command 0 (0x00): Ping Command.
Reason:	Product improvement.
Availability:	Immediate
Price Change:	No

Part Change Notice #10280: Firmware change

Products Affected:	CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA635-TFE-KU, CFA635-YYE-KL, XES635BK-TFE-KU, XES635BK-TMF-KU, XES635BK-YYE-KU, CFA635-TMF-KU, CFA635-YYE-KU
Date Issued:	April 10, 2010
Summary:	Firmware change
Description:	Firmware / reset circuit change from v1.4 to v1.6
Reason:	To make LCD module less sensitive to supply variations
Impact:	Range checking on command 0 is corrected. Parameter checking on command 20 is corrected. Module will return "CFA635:h1.1,v1.6" for command 1. Customers who have customized part numbers will not be affected by this change unless they contact Crystalfontz to have their part definition changed.
Availability:	2010/05/01
Price Change:	N/A

20x4 Character Enclosed LCD Module

Part Number: XES635BK-TFE-KU

Physical Characteristics

Optical Characteristics

Electrical Specifications

Environmental

Electronics

Part Change Notices

Subscribe to Part Change Notices by email or RSS

Part Change Notice #10853: CFA635 series Firmware revision 2.1.

Part Change Notice #10852: CFA635 series Hardware revision 1.5

Part Change Notice #10406: Supporting firmware for the reactivation of the CFA635 family of modules.

Part Change Notice #10405: Reactivation of the CFA635 family of modules with 1v2 hardware and supporting firmware.

Part Change Notice #10365: End of Life announcement: CFA635 family of Intelligent Modules.

Part Change Notice #10287: XES635BK Hardware v3.1 / Firmware v1.6

Part Change Notice #10280: Firmware change

LCD Software

User Forum

Tech Support

Glass Type/Glass Color	FSTN/Light Gray
Polarizer	Transflective
View Direction	12 o'clock
Sunlight Readable	Yes

Backlight Color	White
Backlight Type	LED
Mode	Positive
Foreground Color	Dark
Background Color	Light Gray