Dark on Yellow 20x2 Character LCD

Part Number: CFAH2002M-YYH-ET

Parallel Character LCD 20x2, RoHS Compliant, Yellow/Green LED Backlight, STN Positive, Yellow/Green, Transflective -20°C to +70°C 6:00

  • Form compatible with the CFAG20232C Series of Graphic LCD modules. Give your product a midlife upgrade by replacing the CFAH2002M with a CFAG20232C.
  • Available in several variations of backlight and polarizer (minimum order may be required)
  • Large Characters
  • 8-bit or 4-bit parallel interface
  • Industry-standard HD44780 compatible controller
Quantity Price
1 $26.15
10 * $25.40
20 * $21.67
50 * $19.04
100 * $16.81
200 * $15.24
500 * $13.42
1000 * $12.27
* Pricing is subject to change. Contact us about potential lead times.
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Physical Characteristics

Characters x Lines 20 x 2
Module Overall width height depth
millimeters 146 43 13.7
inches 5.748 1.693 0.539
PCB Outline width height depth
millimeters 146 43 13.7
inches 5.748 1.693 0.539
Diagonal Dimension 4.74"
Viewing Area width height
millimeters 123 23
inches 4.843 0.906
Active Area width height
millimeters 118.84 18.97
inches 4.679 0.747
Character Size width height
millimeters 4.84 9.22
inches 0.191 0.363
Character Pitch width height
millimeters 6 9.75
inches 0.236 0.384
Dot Size width height
millimeters 0.92 1.1
inches 0.036 0.043
Dot Pitch width height
millimeters 0.98 1.16
inches 0.039 0.046
Weight 52g
Pin Count 16

Optical Characteristics

Glass Type/Glass Color STN/Yellow-Green
Polarizer Transflective
View Direction 6 o'clock
Sunlight Readable Yes
Backlight Color Yellow-Green
Backlight Type LED
Mode Positive
Foreground Color Dark
Background Color Yellow-Green

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 4.5V
Forward Voltage Typical 4.2V
Forward Current Minimum 240mA
Forward Current Maximum 360mA
Forward Current Typical 300mA


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
For reference only. For design purposes, please use the specifications in the datasheet.