This product is discontinued please contact support to see if there is a replacement part available.

[EOL] Dark 20x4 Character LCD

Part Number: CFAH2004D-YTI-ET

Parallel Character LCD 20x4, RoHS Compliant, Yellow-Green LED Backlight, FSTN Negative, Transmissive -20°C to +70°C 6:00

  • Available in several variations of backlight and polarizer (minimum order may be required)
  • 8-bit or 4-bit parallel interface
  • Industry-standard HD44780 compatible controller


Physical Characteristics

Characters x Lines 20 x 4
Module Overall width height depth
millimeters 77 47 12.4
inches 3.031 1.850 0.488
Viewing Area width height
millimeters 60 22
inches 2.362 0.866
Active Area width height
millimeters 55.1 17.56
inches 2.169 0.691
Character Size width height
millimeters 2.3 4.03
inches 0.091 0.159
Character Pitch width height
millimeters 2.78 4.51
inches 0.109 0.178
Dot Size width height
millimeters 0.42 0.46
inches 0.017 0.018
Dot Pitch width height
millimeters 0.47 0.51
inches 0.019 0.020
Weight 52g

Optical Characteristics

Glass Type/Glass Color FSTN/Black
Polarizer Transmissive
View Direction 6 o'clock
Backlight Color Yellow-Green
Backlight Type LED
Mode Negative
Foreground Color Yellow-Green
Background Color Dark

Electrical Specifications

Supply Voltage for Logic Minimum 4.5V
Supply Voltage for Logic Maximum 5.5V
Supply Voltage for Logic Typical 5V
Supply Voltage for Driving Panel Typical 4.5V
Supply Current Minimum 1mA
Supply Current Maximum 1.5mA
Supply Current Typical 1.2mA
Module Connector Pitch 0.1mm

Backlight Electrical Specifications

Forward Voltage Minimum 3.9V
Forward Voltage Maximum 4.4V
Forward Voltage Typical 4.2V
Forward Current Minimum 144mA
Forward Current Maximum 216mA
Forward Current Typical 180mA


Operating Temperatures min max
Celsius -20° 70°
Fahrenheit -4° 158°
Storage Temperatures min max
Celsius -30° 80°
Fahrenheit -22° 176°
Humidity min max
Non-condensing 0% 90%


Controller Documents Sitronix ST7066U
Dot Matrix LCD Controller/Driver
Interface 4-bit Parallel, 8-bit Parallel

Part Change Notice

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Product Update #10900: End-Of-Life Notice

Product Affected: CFAH2004D-YTI-ET
Date Issued: November 20, 2017
Summary: End-Of-Life Notice
Description: This product discontinued.
Reason: Market trends have reduced demand for this LCD in this format.
Impact: This display is discontinued.
Recommendation: Different color variations are still available:


Availability: No longer available
Price Change: N/A
For reference only. For design purposes, please use the specifications in the datasheet.