All existing CFA635-YYE-KU products are transitioning to CFA635-YYK-KU 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 LCD USB Display

Part Number: CFA635-YYE-KU

Pricing

Quantity Price
1 $63.76
10 $61.90
20 $58.40
50 $55.00
100 $50.50
200 $46.10
500 $41.70
1000 * $37.20
* Contact us about potential lead times.
Add to cart without customizations
Qty:


Datasheets

CFA635-xxx-KU Data Sheet Release 2014-03-14.pdf
(Mar 2016, Datasheet 2014-03-18, Hardware h1v2, Firmware u2v0)
Previous Versions of Datasheets
CFA635-xxx-KU Data Sheet Release 2013-03-06.pdf
(Mar 2013, Hardware h1v2, Firmware u2v0)
Preliminary h1.2/u2.0 CFA635 KU Datasheet
(Dec 2012, Datasheet Preliminary, Hardware 1.2, Firmware u2.0)
CFA635-YYE-KU Data Sheet v2.0.pdf
(May 2010, Datasheet 2.0, Hardware 1.1, Firmware 1.6)
CFA635YYEKU v1.4c.pdf
(Mar 2010, Datasheet 1.4c, Hardware 1.0, Firmware 1.4)
CFA635-YYE v1.4b.pdf
(Oct 2006, Datasheet 1.4b, Hardware 1.0, Firmware 1.4)
CFA 635 v1.4a.pdf
(Nov 2005, Datasheet 1.4a, Hardware 1.0, Firmware 1.4)
CFA 635 v1.4.pdf
(Aug 2005, Datasheet 1.4, Hardware 1.0, Firmware 1.4)
CFA 635 1 0.pdf
(Mar 2005, Datasheet 1.0, Hardware 1.0, Firmware 1.0)




20x4 Character LCD USB Display (CFA635-YYE-KU)

Product Variants


RS232


Logic Level Serial


USB

Description

USB 20x4 character LCD module, six button keypad, RoHS / REACH compliant, Yellow-Green LED Backlight, STN Positive Yellow-Green, Transflective, 0°C to +50°C operation, 12:00 viewing angle.

  • 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)
  • 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
  • Compact size: fits in a 1U rack mount case (37mm overall height)
  • ATX power supply control functionality allows the buttons on the CFA-635 to replace the "power" and "reset" buttons on your system, simplifying your front panel design
  • Built-in factory re-programmable microcontroller
  • 5.25" half-height drive-bay mounting bracket available (optional)
  • Non-volatile memory capability ("EEPROM"):
    • Customize the "power-on" display and LED settings
    • 16-byte "scratch" register for storing IP, netmask, system serial number
  • Optional 5.25" half-height LCD drive bay kit. (Available when adding to cart.)
  • Optional hard drive mounting tray (SLED) which allows you to mount a hardrive behind the display, saving valuable space in your enclosure and providing space for your display, System Cooling Accessory Board (SCAB) and a 3.5" disk drive. (Available when adding to cart.)

TECHNICAL SPECS

For reference only. For design purposes, please use the specifications in the datasheet.

Physical Characteristics

Characters x Lines 20 x 4
Module Overall width height depth
millimeters 142 37 20.8
inches 5.591 1.457 0.819
*depth doesn't include Keypad
Viewing Area width height
millimeters 82.95 27.5
inches 3.266 1.083
Active Area width height
millimeters 77.95 22.35
inches 3.069 0.880
Character Size width height
millimeters 3.2 4.85
inches 0.126 0.191
Character Pitch width height
millimeters 3.55 5.95
inches 0.140 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 66g
Keystroke Travel 2.4mm

Optical Characteristics

Glass Type/Glass Color STN/Yellow-Green
Polarizer Transflective
View Direction 12 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 50°
Fahrenheit 32° 122°
Storage Temperatures min max
Celsius -10° 60°
Fahrenheit 14° 140°
Humidity min max
Non-condensing 0% 90%

Electronics

Interface USB

*Suggest a Correction

Part Change Notice

Subscribe to Part Change Notices by email Email subscription for changes to CFA635-YYE-KU or RSS RSS feed for changes to CFA635-YYE-KU

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-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-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 #10672: Resistor change in keypad LED sub circuit.

Products Affected: CFA635-YYE-KS, CFA635-YYE-KL, CFA635-YYE-KU
Date Issued: August 28, 2015
Summary: Resistor change in keypad LED sub circuit.
Description: As part of our continuous improvement process, the keypad LED sub circuit was reviewed and modified to give the LEDs more room in the tolerance stack to accommodate variations in all components circuit for improved visual consistency.
Reason: Due to manufacturing variances, recent shipments of this product had LEDs in the keypad which varied in appearance. It was determined that changing the resistors RB1 and RB2 from 20 Ohm to 49.9 Ohm resistors would ensure the correct color, accommodating for similar manufacturing variances.
Impact: All variants of the CFA635-YYE will have improved visual consistency.
Availability: Immediate.
Price Change: There is no price change associated with this change.

Part Change Notice #10658: Depreciation 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, 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-TMI-KI, 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: Depreciation 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 #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:

  1. LCD controller changing from Samsung S6A0073 to Rockworks RW1067

  2. Supporting driving circuitry between the LCD controller and the LCD glass has been updated to support the Rockworks RW1067

  3. The PCB layout has been updated to support the Rockworks RW1067

  4. 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 #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.

Product Update #10377: CFA635 to CFA735 Migration

Products Affected: CFA635-YYE-KS, CFA635-TMF-KS, CFA635-TFE-KS, CFA635-TMF-KL, CFA635-TFE-KL, CFA635-TFE-KU, CFA635-YYE-KL, CFA635-TMF-KU, CFA635-YYE-KU, CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
Date Issued: January 3, 2012
Summary: CFA635 to CFA735 Migration
Description: Detailed in formation on migrating from the CFA635 family to the CFA735 family of intelligent modules. The document covers the similarities and differences between the two family of modules.
Reason: Support for the CFA735 product announcement.
Recommendation: All CFA635 users should download and read the document.
Availability: Q1 2012 – Initial run of CFA735 family available. Limited Quantities.

Q2 2012 – Production level shipments of CFA735 family.

Q3 2012 - CFA735 fully replaces CFA635.
Attachment: CFA735_Migration_doc.pdf (734KB)

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 #10282: Keypad height change

Products Affected: 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, CFA635-TFE-KU, CFA635-YYE-KL, CFA635-TMF-KU, CFA635-YYE-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-TMI-KI, CFA533-YYH-KI
Date Issued: June 6, 2010
Summary: Keypad height change
Description: Over the next 6 months or so, we will be transitioning to a keypad that is 1.5mm taller than the keypad currently shipping on these modules.
Reason: We have found that in all cases that we are aware of, the keypad being 1.5mm taller will alleviate some customer difficulties.
Recommendation: If you need the keypad to remain the same height for your application, please email support@crystalfontz.com so that we can set aside some of the shorter keypads for your company's application.
Availability: ~0-6 months.
Price Change: None.

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
For reference only. For design purposes, please use the specifications in the datasheet.

$63.76