USB LCD Displays
Red 20x2 Character USB Display
Part Number: CFA631-RMF-KU
Red Backlit CFA631 USB LCD 20x2 Character LCD with four button keypad and transmissive polarizer, 0°C to +50°C Operating temperature, 12:00 viewing angle
Features:- 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
- Available in a LCD drive bay kit
- This module is now available with I2C interface, please contact support@crystalfontz.com for more information.
Currently Shipping: HW Version 2H4, Firmware Version: U3v1
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Datasheet
Compliance Documents
TECHNICAL SPECS
Physical Characteristics
| Characters x Lines | 20 x 2 |
| Module Overall | width | height | depth |
|---|---|---|---|
| millimeters | 101.6 | 25.4 | 93.1 |
| inches | 4.000 | 1.000 | 3.665 |
| *depth doesn't include Keypad | |||
| Diagonal Dimension | 2.53" |
| Viewing Area | width | height |
|---|---|---|
| millimeters | 66 | 13.8 |
| inches | 2.598 | 0.543 |
| Active Area | width | height |
|---|---|---|
| millimeters | 63.55 | 10.35 |
| inches | 2.502 | 0.407 |
| Character Size | width | height |
|---|---|---|
| millimeters | 2.6 | 4.5 |
| inches | 0.102 | 0.177 |
| Character Pitch | width | height |
|---|---|---|
| millimeters | 3.18 | 5.2 |
| inches | 0.125 | 0.205 |
| Dot Size | width | height |
|---|---|---|
| millimeters | 0.48 | 0.6 |
| inches | 0.019 | 0.024 |
| Dot Pitch | width | height |
|---|---|---|
| millimeters | 0.53 | 0.65 |
| inches | 0.021 | 0.026 |
| Weight | 80g |
| Keystroke Travel | 2mm |
Optical Characteristics
| Glass Type/Glass Color | STN/Blue |
| Polarizer | Transmissive |
| View Direction | 12 o'clock |
| Backlight Color | Red |
| Backlight Type | LED |
| Mode | Negative |
| Foreground Color | Red |
| Background Color | Dark |
Electrical Specifications
| Supply Voltage for Logic Typical | 5V |
Environmental
| Operating Temperatures | min | max |
|---|---|---|
| Celsius | 0° | 50° |
| Fahrenheit | 32° | 122° |
| Storage Temperatures | min | max |
|---|---|---|
| Celsius | -10° | 60° |
| Fahrenheit | 14° | 140° |
| Humidity | min | max |
|---|---|---|
| Non-condensing | 0% | 90% |
Electronics
| Interface | USB |
Part Change Notice
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Part Change Notice #11226: Change to ENIG from Gold Plating
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, DS635-AL, DS635-BG, DS635-BK, DS635-AK, 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. |
Part Change Notice #10428: CFA631 family Firmware version 3v1
| Products Affected: | CFA631-RMF-KU, CFA631-TMF-KU |
| Date Issued: | August 3, 2012 |
| Summary: | CFA631 family Firmware version 3v1 |
| Last revision: | v2.1 |
| Description: | The CFA631 family of modules is being revised to support a new LCD controller chip, the Rockworks RW1067. The changes to the CFA631 3v1 firmware are as follows. For hardware changes, please see PCN #10427. Updates: Command 1 (0x01): Get Hardware & Firmware Version Modules with the USB interface, -KU suffix, will report: CFA631:h2v4,u3v1 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: | The Samsung S6A0073 LCD controller used was scheduled as End of Life. This EOL affected a number of intelligent modules from Crystalfontz America, Inc. The replacement RW1067 LCD controller 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 CFA631 family of modules. The CFA631 can continue to be used in current and future designs. |
| Recommendation: | Continue to order and build with the CFA631 as required by production schedules. Transition to the CFA631 h2v4 hardware and supporting firmware should be a seamless process. Engineering samples for qualification for the revised CFA631 are scheduled to be available Q3 of 2012. Please contact our logistics team for engineering samples sales@crystalfontz.com. For engineering and support questions, please contact our engineering support team at support@crystalfontz.com |
| Availability: | Q3 2012 Review / Update customer Defined Part custom firmware Q3 2012 New hardware and supporting firmware available for engineering samples Estimated - Begin transition to h2v4 hardware as v2.1 hardware inventory is depleted NOTE: We will not ship production orders of 3v0 hardware until the v2.1 inventory is depleted Q4 2012 Estimated - CFA631 v2.1 hardware to be exhausted, transition to CFA631 h2v4 hardware / u3v1 firmware complete. |
| Price Change: | 2012-08-03 No scheduled price change at this time. |
Part Change Notice #10427: CFA631 family Hardware version 2v4
| Products Affected: | CFA631-RMF-KU, CFA631-TMF-KU |
| Date Issued: | August 3, 2012 |
| Summary: | CFA631 family Hardware version 2v4 |
| Last revision: | v2.1 |
| Description: | The CFA631 family of modules is being revised to support a new LCD controller chip, the Rockworks RW1067. The changes to the CFA631 2v4 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 – PCN #10428 The only changes to the CFA631 family are to support the Rockworks RW1067 controller. There are no other physical changes to the CFA631. |
| Reason: | The Samsung S6A0073 LCD controller used was scheduled as End of Life. This EOL affected a number of intelligent modules from Crystalfontz America, Inc. The replacement RW1067 LCD controller 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 CFA631 family of modules. The CFA631 can continue to be used in current and future designs. |
| Recommendation: | Continue to order and build with the CFA631 as required by production schedules. Transition to the CFA631 h2v4 hardware and supporting firmware should be a seamless process. Engineering samples for qualification for the revised CFA631 are scheduled to be available Q3 of 2012. Please contact our logistics team for engineering samples sales@crystalfontz.com. For engineering and support questions, please contact our engineering support team at support@crystalfontz.com |
| Availability: | Q3 2012 Review / Update customer Defined Part custom firmware Q3 2012 New hardware and supporting firmware available for engineering samples. Estimated - Begin transition to h2v4 hardware as v2.1 hardware inventory is depleted NOTE: We will not ship production orders of 3v0 hardware until the v2.1 inventory is depleted Q4 2012 Estimated - CFA631 v2.1 hardware to be exhausted, transition to CFA631 h2v4v0 hardware / u3v1 firmware complete |
| Price Change: | 2012-08-03 No scheduled price change at this time. |
Compatible Cables
System Cooling Accessory Boards
For reference only. For design purposes, please use the specifications in the datasheet.
