CFA634-YFB-KU

CFA-634 USB LCD 20x4, Yellow/Green LED Backlight, FSTN Positive, Transflective 0°C - +50°C 6:00, (Must also order WRUSBY03 or WRUSBY11 cable)

Full 634 v2.0 feature set: This USB version retains the entire feature set of the original 634 v2.0:

  • The LCD material for the positive displays is FSTN (Film compensated Super Twisted Nematic) instead of STN. FSTN gives better contrast, faster response and makes an all-around more readable display.
  • The display as the ability to store a customized boot screen of your design in its EEPROM. All features of the display are controlled: characters displayed, user-definable characters, backlight setting, contrast setting, cursor position, cursor style, "wrap" setting, "scroll" setting, and even the scrolling marquee.
  • The CGROM is an enhanced version with many more useful characters: numeric superscripts, icons, mathematical symbols, some fractions, a great variety of arrows, many currency symbols, and more.
  • Available with 634 PC Mounting Bracket
  • Large, easy to read characters: 7.3mm (0.287") character height
  • Available with bright, even, software adjustable LED backlighting or in a low-power reflective model
  • Software controlled contrast
  • "Gapless" horizontal bargraphs
  • Software controlled terminal style automatic scrolling and line wrapping
  • Unique "Scrolling Marquee" feature continuously scrolls a message across the display without host intervention.
  • Buffered communication
  • Large display area in a compact 130mm x 63mm (5.12" x 2.48")package
  • Thin:
    • Reflective is 15.9mm (0.626") including DB-9 connector
    • LED Backlit is 19.9mm (0.783") including DB-9 connector
    The USB converter board and its compact connector does not add to the overall thickness of the module.
    • Negative voltage for contrast generated on board

Download:

Ultra simple Windows command-line demonstration program with C source code, 5K
Linux-compatible command-line demonstration program with C source code, 8K
Windows USB driver and installation instructions
Supported by CrystalControl freeware

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Intelligent USB LCD Modules
CFA634YFBKU
CFA634YFBKU
  • CFA-634 USB LCD 20x4
  • Yellow/Green LED Backlight
  • FSTN Positive
  • Transflective 0°C - +50°C 6:00
  • (Must also order WRUSBY03 or WRUSBY11 cable)
Quantity in Cart
Price Each
N/A
Item Total
N/A
Qty 1+ 10+ 20+ 50+* 100+* 200+* 500+* 1000+*
Price 65.00 59.00 53.25 50.25 47.25 44.25 41.25 38.25
* These quantities may be subject to 4-10 weeks lead time.
Cables
WRUSBY03
WRUSBY03
  • USB-A to 2mm Cable for all USB Displays
  • RoHS Compliant
Quantity in Cart
Price Each
N/A
Item Total
N/A
Qty 1+ 25+ 50+*
Price 5.00 4.00 3.00
* These quantities may be subject to 4-10 weeks lead time.
WRUSBY11
WRUSBY11
  • Motherboard header to 2mm Cable USB Displays, approximately 27" length
  • RoHS Compliant
Quantity in Cart
Price Each
N/A
Item Total
N/A
Qty 1+ 25+ 50+*
Price 5.00 4.00 3.50
* These quantities may be subject to 4-10 weeks lead time.

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Physical Characteristics

Characters x Lines 20 x 4
Module Overall
width height depth
millimeters 130 63 19.9
inches 5.12 2.48 0.78
PCB Outline
width height depth
millimeters 130 63 19.9
inches 5.12 2.48 0.78
Viewing Area
width height
millimeters 102 41.5
inches 4.02 1.63
Active Area
width height
millimeters 93.54 34
inches 3.68 1.34
Character Size
width height
millimeters 3.84 6.38
inches 0.15 0.25
Character Pitch
width height
millimeters 4.68 8.9
inches 0.18 0.35
Dot Size
width height
millimeters 0.72 0.86
inches 0.03 0.03
Dot Pitch
width height
millimeters 0.78 0.92
inches 0.03 0.04

Optical Characteristics

Glass Type/Color FSTN/Light-Gray
Polarizer Transflective
View Direction 6:00
Backlight Color Yellow-Green
Backlight Type LED
Mode Positive

Environmental

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

Electronics

Interface USB

Datasheets

Current Version

CFA-634_v2.0.pdf (1MB)
Datasheet: v2.0, Hardware: v2.3, Firmware: v2.0
Previous Version
634full_v0_7.pdf (331KB)

Other Document

1 to 1 Template (33KB)

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