XE634BK-YFB-KU

634XE USB LCD 20x4 External Enclosure, Yellow/Green LED Backlight, FSTN Positive, Transflective 0°C - +50°C 6:00, Includes 10' black low-drop captive USB "A" cable

General
Tech Specs
Docs / Files
Notices
Dimensions
Related
Photos

XE634BK External USB LCDs Family

These external modules are extremely rugged and well-suited for dusty or damp locations. They are splash-resistant and resistant to dust.

The outline of the case is very compact compared to the size of the display, only slightly larger than the bare module.

These are perfect for use in a wall-mounted or desktop application, since the display can be mounted at eye-level. With the addition of a simple metal bracket, the XE634 can form the bulk of a POS pole mounted display.

USB Interface: The USB interface version of the XE634 has the full feature set of the serial interface CFA634, but allows connection to a USB port, using only a single cable for both power and data. Full compatibility with existing software is preserved by using our "Virtual COM port" driver. Connect the display, install the driver, and your computer will show an additional COM port any time the display is connected.

FSTN (Film compensated Super Twisted Nematic) LCD glass. FSTN gives better contrast, faster response, and makes an all-around more readable display than STN.
Bright, even, software-adjustable LED backlight.
The display has 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.
Terminal style automatic scrolling and line wrapping, controlled in software. Unique "Scrolling Marquee" feature continuously scrolls a message across the display without host intervention.
Enhanced CGROM version with many useful characters: numeric superscripts, icons, mathematical symbols, some fractions, a great variety of arrows, many currency symbols, and more.
The processor's reset circuit can handle a wide range of slow-turn-on power supply conditions.
Negative voltage for contrast generated on board.
Large, easy-to-read characters are 7.3 mm (0.287") high
Large display area in a compact 144 mm x 69 mm (5.67" x 2.72") package.
Wide temperature
"Gapless" horizontal bar graphs.
Buffered communication.
Single board construction. No connectors to fail.
RoHS compliant.

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	144	69	26
inches	5	2	1

PCB Outline
	width	height	depth
millimeters	144	69	26
inches	5	2	1

Viewing Area
	width	height
millimeters	102	41.5
inches	4	1.6

Active Area
	width	height
millimeters	93.54	34
inches	3.68	1

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	0.3

Dot Size
	width	height
millimeters	0.72	0.86
inches	0.02	0.03

Dot Pitch
	width	height
millimeters	0.78	0.92
inches	0.03	0.03

Weight

413g

Optical Characteristics

Display Technology	LCD
Display Addressing	passive
Glass Type/Glass Color	FSTN/Light Grey
Polarizer	Transflective
View Direction	6:00

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

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

CFA-634_v2.0.pdf (1MB, Oct 2005, Datasheet v.2.0, Hardware v.2.3, Firmware v.2.0)
634full.pdf (782KB, Aug 2001, Datasheet v.2.0, Hardware v.2.0, Firmware v.2.0)