Part Number: CFA735-TFK-KT1

Product Variants


Logic Level Serial/USB


RS232/USB

Description

USB + Full Swing RS-232 20x4 character LCD module with Keypad, White Edge LED Backlight, FSTN Positive, Transflective, -20°C to +70°C, 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)
  • Three color options:
  • 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
  • Serial and USB interfaces (115200 baud equivalent throughput)
    • KT supports full swing RS-232 with CFARS-232 daughter board and USB simultaneously
    • KR supports 0-5v logic level serial and USB simultaneously
  • Robust packet based communications protocol with 16-bit CRC
  • Compact size: fits in a 1U rack mount case (37.5mm overall height)
  • ATX power supply control functionality allows the buttons on the CFA735 to replace the "power" and "reset" buttons on your system, simplifying your front panel design (requires additional cables or hardware).
  • Built-in microcontroller with field-upgradeable firmware
  • Non-volatile memory capability ("EEPROM"):
    • Customize the "power-on" display and LED settings
    • 16-byte "scratch" register for storing IP, netmask, system serial number
  • Run STM32 embedded applications on the CFA735 hardware.
  • Open source firmware for CFA735 displays allows you to customize and write/run your own user code.
  • TECHNICAL SPECS

    Physical Characteristics

    Characters x Lines 20 x 4
    Module Overall width height depth
    millimeters 142 38 34.6
    inches 5.591 1.496 1.362
    *depth doesn't include Keypad
    Viewing Area width height
    millimeters 83.1 27.54
    inches 3.272 1.084
    Active Area width height
    millimeters 77.97 22.38
    inches 3.070 0.881
    Character Size width height
    millimeters 3.23 4.88
    inches 0.127 0.192
    Character Pitch width height
    millimeters 3.9 5.6
    inches 0.154 0.220
    Dot Size width height
    millimeters 0.3 0.33
    inches 0.012 0.013
    Dot Pitch width height
    millimeters 0.33 0.35
    inches 0.013 0.014
    Weight 57g
    Keystroke Travel 2.4mm
    Keypad Depth 12mm

    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

    Electrical Specifications

    Supply Voltage for Logic Maximum 5.5V

    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 RS232, USB

    Part Change Notice

    Subscribe to Part Change Notices by email Email subscription for changes to CFA735-TFK-KT1 or RSS RSS feed for changes to CFA735-TFK-KT1

    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, 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 #10607: Price change for CFA735 based parts, effective 2014-09-01

    Products Affected: CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: July 25, 2014
    Summary: Price change for CFA735 based parts, effective 2014-09-01
    Description: All CFA735 based parts will have a price increase effective 2014-09-01.
    All standard parts, build options from website, and Defined Parts based on the CFA735 will have a price increase.
    Reason: Manufacturing and production cost increases.
    Impact: All CFA735 based parts are effected.
    Availability: No changes in availability.
    Price Change: Base part price changes are as follows; pricing for build options will be increase accordingly

    CFA735-TFK-KR
    1 US$89.98
    10 US$83.5
    20 US$78.62
    50 US$73.74
    100 US$68.86
    200 US$63.98
    500 US$51.91
    1000 US$54.22

    CFA735-TML-KR
    1 US$88.88
    10 US$79.58
    20 US$74.92
    50 US$70.28
    100 US$65.62
    200 US$60.98
    500 US$56.32
    1000 US$51.68

    CFA735-YYK-KR
    1 US$89.14
    10 US$79.8
    20 US$75.14
    50 US$70.48
    100 US$65.8
    200 US$61.16
    500 US$56.48
    1000 US$51.82

    CFA735-TFK-KT
    1 US$99.98
    10 US$93.5
    20 US$88.62
    50 US$82.74
    100 US$76.86
    200 US$71.98
    500 US$59.91
    1000 US$62.22

    CFA735-TML-KT
    1 US$98.88
    10 US$89.58
    20 US$84.92
    50 US$79.28
    100 US$73.62
    200 US$68.98
    500 US$64.32
    1000 US$59.68

    Orders placed before price change effective will reflect existing pricing.
    Orders placed after price change effective will reflect new pricing.

    Product Update #10496: Converting CFA735 serial parts number with cable bundle

    Products Affected:
    Date Issued: June 17, 2013
    Summary: Converting CFA735 serial parts number with cable bundle

    Last revision: N/A
    Description: CFA735-TFK-KT1, CFA735-TML-KT1, and CFA735-YYK-KT1 parts are be deprecated and converted to two new part numbers, each with one serial cable and the necessary power cable.

    The CFA735-TFK-KT1, CFA735-TML-KT1, and CFA735-YYK-KT1 parts shipped with the following cables:
    WR-232-Y08
    WR-232-Y22
    WR-PWR-Y24

    If you need to connect the CFA735-TFK-KT, CFA735-TML-KT, or CFA735-YYK-KT to a DB-9 port, order:
    CFA735-TFK-KT5
    CFA735-TML-KT5
    CFA735-YYK-KT5
    which includes a WR-232-Y08 serial cable and WRP-WR-Y24 power cable.

    If you need to connect the CFA735-TFK-KT, CFA735-TML-KT, or CFA735-YYK-KT to a 0.100 in. 2 x 5 header, order:
    CFA735-TFK-KT6
    CFA735-TML-KT6
    CFA735-YYK-KT6
    which includes a WR-232-Y22 serial cable and WR-PWR-Y24 power cable.
    Reason: As part of our continuous improvement process, and customer feedback the “KT1” part with both external and internal serial communications cables only a single cable is required, and often used
    Impact: All parts with -KT1 suffix
    Recommendation: Determine the new part to order based on the connection from the Serial CFA735 to your host system, and then order the appropriate part with the -KT5 or -KT6 suffix.

    If you need assistance determining your replacement part, or need to continue to order a part with both serial cables, please contact our Engineering Support Team at support@crystalfontz.com
    Availability: Effective date: 2013-06-18
    The new -KT5 and -KT6 part numbers will be available
    The -KT1 parts will become deprecated
    Price Change: Reduced pricing is in effect for the new parts due to one fewer cable being bundled

    Product Update #10429: Hardware version update from 0vA to 1v0.

    Products Affected: CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: August 23, 2012
    Summary: Hardware version update from 0vA to 1v0.
    Last revision: 0vA
    Description: Manufacturer was changed for the micro-USB connector and microSD card socket.
    Reason: As generally occurs in the process between Pilot and Production Release, product/process improvements were identified and implemented. These improvements in manufacturability are reflected in the product between hardware versions 0vA and 1v0. They do not represent a form, fit or function change.
    Impact: String returned by command 1 (get HW and FW version) will reflect the new hardware version 1v0: "CFA735:h1v0,f0vB" will now be the response when queried using command 1.
    Recommendation: If the end-user application relies on the firmware string response being the same as previous versions, it will need to be changed to accept the new response to command 1.
    Availability: As product becomes available, estimated completion by Q2 2013.
    Price Change: N/A

    Part Change Notice #10404: WHQL Drivers for CFA735 family

    Products Affected: CFA735-TFK-KR, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: March 13, 2012
    Summary: WHQL Drivers for CFA735 family
    Last revision: 1.0.0.0
    Description: USB drivers for the CFA735 are now WHQL certified
    Availability: Immediate
    Price Change: N / A

    Part Change Notice #10401: CFA735 family firmware 0vB

    Products Affected: CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: February 3, 2012
    Summary: CFA735 family firmware 0vB
    Last revision: 0vA
    Description: As part of our continuous improvement process, a new version of the CFA735 firmware is being released to address possible functional and performance issues.
    Reason: Corrects the RAM Layout for the STM32F103RC microcontroller.
    Impact: Low.
    Recommendation: We are recommending that all CFA735 modules be updated to 0vB firmware as soon as possible.

    NOTE: 0vB firmware requires 0vA hardware. See PCN 10400.
    Availability: CFA735 modules shipped from Crystalfontz America Inc, on or after 2012-02-06
    Price Change: This firmware update does not effect the pricing of the CFA735 family.

    Part Change Notice #10399: CFA735 family firmware 0vA

    Products Affected: CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: January 31, 2012
    Summary: CFA735 family firmware 0vA
    Last revision: 0v9
    Description: As part of our continuous improvement process, a new version of the CFA735 firmware is being released to address functional and performance issues.

    There is a supporting hardware revision for this firmware release. See PCN 10400.
    Reason:

    1. Correct Command 0x9 Data[0] to only accept 0-7 as the index for the custom characters. In 0v9 0-15 were valid but 8-15 were references to 0-7 respectively.

    2. Fix H1 Pins not functioning when used as GPIOs

    3. Fix extraneous byte received by the host when using the serial interface after a module reset. For this fix to be fully effective the module requires a 1 MΩ 0603 resistor at RC2 (which is standard in the 0vA hardware).

    Impact: All CFA735 family modules are affected with this firmware update.


    Firmware version 0vA requires supporting hardware version 0vA.
    Recommendation: All CFA735 modules that use the serial interface or GPIO lines should update to the new 0vA firmware and supporting hardware.

    If you require assistance loading the 0603 1MΩ resistor in RC2, please contact support@crystalfontz.com.
    Availability: Firmware 0vA and supporting hardware is shipping as standard release as of 2012/01/30.
    Price Change: No price change.

    Product Update #10382: (New Product) CFA735-TFK-KT1

    New Products:
    Date Issued: January 5, 2012
    Summary: (New Product) CFA735-TFK-KT1
    Description: Under Intelligent USB LCD Modules: 20x4 with Keypad, White Edge LED Backlight, FSTN Positive, Transflective, -20°C to +70°C, 12:00.

    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)

    Product Update #10376: Announcing CFA735 family of intelligent LCD modules with CFA635 emulation.

    New Products: CFA735-TFK-KR, CFA735-TFK-KT, CFA735-TML-KR, CFA735-TML-KT, CFA735-YYK-KR, CFA735-YYK-KT
    Date Issued: January 3, 2012
    Summary: Announcing CFA735 family of intelligent LCD modules with CFA635 emulation.
    Description: Crystalfontz America Inc. is proud to announce the release of the CFA735 family of intelligent modules. The CFA735 family represents the first of a new generation of our serial and USB interface modules as part of our continuous improvement process. Designed as an easy replacement for the CFA635 family of modules, the CFA735 family is a significant improvement in capability, capacity, flexibility and usability.

    The CFA735 family in CFA635 Emulation Mode has native support for simultaneous USB and Serial operation. There is an option to order the CFA735 with the CFA-RS-232-01 level inverter for full-swing RS-232 interfaces.

    The CFA735 family is available as a bare module, with your choice of internal / external USB cable, or with a serial cable kit (power, internal, and external connectivity).

    Reason: The CFA735 in CFA635 emulation mode is being released as a replacement for the CFA635 family of modules. The CFA635 family of modules has reached it's EOL.
    Impact: Customers migrating from the CFA635 family should place orders for engineering samples, and qualify as required by established procedures.
    Availability: The first run of the CFA735 family is available for immediate shipment in limited quantities.

    The initial release of the CFA735 family is CFA635 Emulation Mode. Our goal was to allow our customers that have integrated the CFA635 into their systems the ability to migrate to the CFA735 in CFA635 Emulation Mode with the least amount of interruption.

    Q1 2012 – Initial run of CFA735 family available. Limited Quantities.

    Q2 2012 – Production level shipments of CFA735 family.

    Q3 2012 - CFA735 fully replaces CFA635.
    Price Change: Please see the individual product pages for current pricing.
    Attachment: CFA735_Product_Announcement.pdf (2MB)
    For reference only. For design purposes, please use the specifications in the datasheet.