Crystalfontz - CFA631-TMF-KU2

CFA631-TMF-KU2

CFA-631 USB LCD 20x2 +Keypad, RoHS Compliant, White Edge LED Backlight, STN Negative, Blue, Transmissive 0°C - +50°C 12:00

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The only 20x2 USB LCD with keypad designed to fit in a PC's 3.5" floppy disk drive bay.
USB interface (115200 baud throughput)
LED backlit negative mode STN 20x2 LCD
Integrated LED backlit 4-button translucent silicon keypad
"key legends" allows user assignment of soft keys to be shown easily on the LCD
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
Fully decoded keypad: any key combination is valid and unique
Robust packet-based communications protocol with 16-bit CRC
Built-in re-programmable microcontroller (factory operation)
Non-volatile memory capability ("EEPROM"):
- Customize the "power-on" display settings
- 16-byte "scratch" register for storing IP, netmask, system serial number
Expandable firmware and configurable hardware that can be customized to add specific features for your system needs:
- Hardware or software watchdog can provide system reset
- Other analog or digital I/O
- Provide "dongle" functionality for software copy protection
- Autonomous hardware monitoring
- Fan control and monitoring, temperature monitoring
(Tooling fee may apply for custom firmware and hardware)

Download:

Windows compatible test/demonstration program with source code.
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

CFA631TMFKU2

CFA-631 USB LCD 20x2 +Keypad
RoHS Compliant
White Edge LED Backlight
STN Negative, Blue
Transmissive 0°C - +50°C 12:00
Includes Items:
- WRUSBY11
  - Motherboard header to 2mm Cable USB Displays, approximately 27" length
  - RoHS Compliant

Quantity in Cart
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Qty	1+	10+	20+	50+*	100+*	200+*	500+*	1000+*
Price	62.60	58.50	54.50	50.40	46.30	42.30	38.20	34.10
* These quantities may be subject to 4-10 weeks lead time.

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Physical Characteristics

Characters x Lines

20 x 2

Module Overall
	width	height	depth
millimeters	101.6	25.4	93.1
inches	4	1	3.67

PCB Outline
	width	height	depth
millimeters	101.6	25.4	93.1
inches	4	1	3.67

Viewing Area
	width	height
millimeters	66	13.8
inches	2.6	0.54

Active Area
	width	height
millimeters	63.55	10.35
inches	2.5	0.41

Character Size
	width	height
millimeters	2.6	4.5
inches	0.1	0.18

Character Pitch
	width	height
millimeters	3.18	5.2
inches	0.13	0.2

Dot Size
	width	height
millimeters	0.48	0.6
inches	0.02	0.02

Dot Pitch
	width	height
millimeters	0.53	0.65
inches	0.02	0.03

Weight

80g

Keystroke Travel

2mm

Optical Characteristics

Glass Type/Color	STN/Blue
Polarizer	Transmissive
View Direction	12:00

Backlight Color	White
Backlight Type	LED
Mode	Negative

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

CFA631-TMF-KU_v2.0a.pdf (2MB)

Datasheet: rev 2.0a, Hardware: v2.0, Firmware: v2.0

Previous Versions

CFA_631_v2.0.pdf (1MB)
CFA_631_v1.0.pdf (654KB)

Part Change Notices

No notices have been issued for this part.

Quick View: Metric Scale Drawing

For reference only. For design purposes, please use the drawing in the Datasheet.

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Front, Backlight On