Crystalfontz CFA635-USB LCD Display Module – 20×4 Character
High-performance 20×4 character USB LCD display, ideal for embedded systems, monitoring, and control applications. Includes integrated keypad, USB 2.0 interface, and white LED backlight.
Key Features:
USB 2.0 interface with robust packet-based protocol and 16-bit CRC
FSTN positive transflective LCD with white LED backlight (sunlight readable)
Integrated 6-key translucent silicon keypad with LED backlight
Four bi-colour LEDs (red/green) – host-controlled brightness
Customisable power-on display, LED settings, and EEPROM memory
Optional ATX power/reset control functionality
Gap-less character layout supports bar graphs in X/Y directions
Dimensions & Specs:
Overall Dimensions
Width: 142 mm = 5.591 in
Height: 37 mm = 1.457 in
Depth: 20.8 mm = 0.819 in
Viewing Area
Width: 82.95 mm = 3.268 in
Height: 27.5 mm = 1.083 in
Active Area
Width: 77.95 mm = 3.069 in
Height: 22.35 mm = 0.880 in
Character Size
Width: 3.2 mm = 0.126 in
Height: 4.85 mm = 0.191 in
Character Pitch
Width: 3.55 mm = 0.140 in
Height: 5.95 mm = 0.234 in
Dot Size
Width: 0.6 mm = 0.024 in
Height: 0.65 mm = 0.026 in
Dot Pitch
Width: 0.65 mm = 0.026 in
Height: 0.7 mm = 0.028 in
Weight: 66g
Keystroke travel: 2.4 mm
Compatible with custom PC builds, server interfaces, or industrial equipment. Tested, working, and ready to use.
| UK Second Class Delivery | 3-5 Working Days* |
| UK Express Delivery | 1 Working Day* |
All purchases are covered by a 12 month return to base warranty** For return of faulty items up to 12 months after purchase
We will either:
Warranty covers hardware only. Batteries are not covered by warranty. Software support is NOT provided.
30 day fault or defect - seller pays shipping and full refund or replacement cost
30 day buyer error - buyer pays return shipping and seller refunds in full
12 month warranty covering fault or defect - buyer pays return to base (RTB) shipping**