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Green 16x2 Character USB Display Module

Part Number: CFA633-YYH-KU

16x2 USB character LCD module, Fans support, 6 button keypad, RoHS / REACH compliant, Yellow-Green LED Backlight, STN Positive, Yellow-Green, Transflective, -20°C to +70°C, 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 character USB LCD module to choose? Compare all of our intelligent display modules.

Currently Shipping: HW Version 2.1, Firmware Version: U2v1

Product Variants

RS232

Green RS232 16x2 Character LCD

Blue 16x2 RS232 Character LCD

Red 16x2 RS232 Character LCD

Blue RS232 16x2 Character LCD

USB

Green 16x2 Character USB Display Module

Blue 16x2 Character USB LCD Display

Red 16x2 Character USB Display Module

16x2 Character USB LCD Module

Green 16x2 Character USB Display Module (CFA633-YYH-KU)

Prices without customizations:
Quantity	Price
1	$69.72
10	$67.69
20	$60.92
50	$57.55
100	$54.15
200	$50.42
500 *	$47.04
1000 *	$43.64

* For quantites over this amount the lead time may be up to 90 days. Contact us about potential lead times.

Components worth considering

USB-C to 4 pin 2mm header
Add a USB-C Cable? $5.30 ea.

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

Datasheet

CFA633-YYH-KU Data Sheet Release Date 2012-02-21.pdf
(Hardware 2.0, Firmware u2v1)

Previous Versions of Datasheet

CFA633-YYH-KU Data Sheet v0.1.pdf
(Datasheet V 0.1 Preliminary, Hardware 2.0, Firmware u2.0)

Files

Software Source - Linux - List USB Device Path Script

CAD Export - CFA633-XXX-KU v2.0 2D CAD

1 to 1 Template - CFA633-XXX-KU v2.0 1 TO 1.PDF

Other Document - Intelligent LCD Comparison

Part Change Notices

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Compliance Documents

TECHNICAL SPECS

Physical Characteristics

Characters x Lines

16 x 2

Module Overall	width	height	depth
millimeters	110.5	35	25.6
inches	4.350	1.378	1.008
*depth doesn't include Keypad

PCB Outline	width	height
millimeters	110.5	35
inches	4.350	1.378

Diagonal Dimension

2.26"

Viewing Area	width	height
millimeters	61	15.8
inches	2.402	0.622

Active Area	width	height
millimeters	56.2	11.5
inches	2.213	0.453

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

43g

Keystroke Travel

2.4mm

Optical Characteristics

Glass Type/Glass Color	STN/Yellow-Green
Polarizer	Transflective
View Direction	6 o'clock
Sunlight Readable	Yes

Backlight Color	Yellow-Green
Backlight Type	LED
Mode	Positive
Foreground Color	Dark
Background Color	Yellow-Green

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%

Electronics

Interface

USB

Compatible Products
Dimensions
Product Notices

Part Change Notice

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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-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, 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.

Product Update #10430: Parts bundled with, and options for WRUSBY11 will now be bundled with and have options for WRUSBY33.

Products Affected:	CFA635-TFE-KU, CFA635-TMF-KU, CFA635-YYE-KU, CFA633-YYH-KU, CFA633-TMI-KU, CFA632-NFG-KU, CFA632-YFH-KU, CFA632-YDI-KU, CFA633-RDI-KU, CFA633-TFH-KU
Date Issued:	September 25, 2012
Summary:	Parts bundled with, and options for WRUSBY11 will now be bundled with and have options for WRUSBY33.
Description:	The WRUSBY33 cable is replacing the WRUSBY11 cable as our standard offering for product bundles and cable options for an internal USB connection for our line of intelligent modules. The WRUSBY11 has four individual connectors for +5v, -Data, +Data, and Ground. WRUSBY11 Product Page: https://www.crystalfontz.com/product/wrusby11-usb-motherboard-cable Reason Based on customer requests and feedback, the WRUSBY33 has a much simpler connection to the main board of a system with a 0.100" standard USB header. The mainboard end of the WRUSBY33 is a single piece 4 pin connector, vs the individual single pin connectors on the WRUSBY11. The WRUSBY33 has a single connector for +5v, -Data, +Data, and Ground that follows the standard pin out configuration. WRUSBY33 Product Page: https://www.crystalfontz.com/product/wrusby33-2mm-lcd-usb-cable
Reason:	Based on customer requests and feedback, the WRUSBY33 has a much simpler connection to the main board of a system with a 0.100" standard USB header. The mainboard end of the WRUSBY33 is a single piece 4 pin connector, vs the individual single pin connectors on the WRUSBY11.
Impact:	The change should have no fit, form, or function change if the system board being used has a standard 0.100" four pin header for USB connectivity that follows the the standard pin out configuration. Semi-Custom, or Defined Part (DP) numbers will not be affected.
Recommendation:	Continue to order your parts with internal USB cable as normal. If you currently use a Semi-Custom, or Defined Part (DP) number and would like to change to the WRUSBY33 for your part, please contact Engineering Services via support@crystalfontz.com and request the change.
Availability:	The WRUSBY33 will be replacing the WRUSBY11 effective 2012-09-25.
Price Change:	There is no price change associated with this product update notice.

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.

Part Change Notice #10298: Firmware Changes

Products Affected:	CFA633-YYH-KS, CFA633-TMI-KS, CFA633-YYH-KU, CFA633-TMI-KU
Date Issued:	November 23, 2010
Summary:	Firmware Changes
Description:	As announced in a PCN 10286 https://www.crystalfontz.com/news/pcn.php?id=10286 on 2010/10/06, the new CFA633 hardware v2.0 / Firmware version 2.0 ("s2.0" for serial modules and "u2.0" for USB modules) is fit, form, and function compatible with previous versions of the CFA633 series (hardware versions 1.5x). Data Sheet. v0.1 was published 2010/11/22 for CFA633 hardware v2.0 / Firmware s2.0/u2.0. The Data Sheet includes descriptions of two command changes: In command 5 (0x05): Reboot CFA633, Reset Host, or Power Off Host, the module now knows if it is coming from a power up or from a reset. This in turn improves the bootup sequence. A note was added to describe the brief delay at bootup when more than one of the optional fans are on. In command 12 (0x0C): Set LCD Cursor Style, cursor style choice "3" changed from "3 = blinking block plus underscore" to "3 = blinking underscore cursor." The rate at which the cursor blinks is faster than in previous CFA633 versions (HW v1.x). For information on additional changes, please see the Data Sheet’s Revision History. For a technical bulletin comparing CFA633 modules by version number, see PCN 10291 at https://www.crystalfontz.com/news/pcn.php?id=10291 published 2010/11/10.

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)