40x2 Parallel Character LCD
Part Number: CFAH4002A-TFH-JT
Standard 40x2 Character LCD – Dark On Light Gray
If you need to display a lot of information on your device, this extra wide LCD will do the job with an active area of 5.8-inches (147.50 millimeters). Like all transflective displays, the 5x8 character matrix on this 40 x 2 LCD screen can be read in direct sunlight, is good for typical office lighting, and is easy to read in dark locations. One of our customers bought a display in the CFAH4002A series to use in an environmental control system for irrigation management.
Key Features
- 2 lines with 40 characters each, industry standard 40x2 form factor
- The built-in alphanumeric set supports Japanese and English text
- Built-in Sitronix ST7066U or compatible controller.
- Sunlight readable
- Adjust backlight contrast by using PWM (Pulse Width Modulation)
As with other standard character displays, the parallel interface communicates with your host using 4-bit or 8-bit mode. The built-in Sitronix ST7066U controller is compatible with the industry standard Hitachi HD44780 controller. Software written for the HD44780 should work without any changes. For controller details, see the Sitronix ST7066U datasheet on our website.
Our goal is to keep every product available as long as possible. We've sold the CFAH4002A series since 2008 and it is still going strong. With a white LED backlight, this FSTN (Film compensated Super-Twisted Neumatic) display module has a higher contrast ratio than the standard STN, resulting in superior sharpness and contrast. A simple current limiting resistor in line with the voltage source works well in most applications. The white LEDs do not demand a current source, although one may be used. For details, see the backlight section starting on page 22 of the datasheet.
Need more information? Our in-house Technical Support team will answer your interface and connection questions.
Product Variations
Colors | Dark on Yellow-Green Yellow-Green LED BacklightWhite on Blue White LED Backlight |
|---|
- square_foot Physical Characteristics
Physical Characteristics
Characters x Lines 40 x 2 Module Overall width height depth millimeters 182 33.5 13.6 inches 7.17 1.32 0.54 PCB Outline width height depth millimeters 182 33.5 13.6 inches 7.17 1.32 0.54 Diagonal Dimension 5.82" Viewing Area Width Height millimeters 154.4 16.5 inches 6.08 0.65 Active Area Width Height millimeters 147.5 11.5 inches 5.81 0.45 Character Size Width Height millimeters 3.2 5.55 inches 0.126 0.219 Character Pitch Width Height millimeters 3.7 5.95 inches 0.146 0.234 Dot Size Width Height millimeters 0.6 0.65 inches 0.024 0.026 Dot Pitch Width Height millimeters 0.65 0.7 inches 0.026 0.028 Weight 98g - visibility Optical Characteristics
Optical Characteristics
Glass Type/Glass Color FSTN/Light Gray Polarizer Transflective View Direction 6 o'clock Sunlight Readable Yes Backlight Color White Backlight Type LED Mode Positive Foreground Color Dark Background Color Light Gray - electric_bolt Electrical Specification
Electrical Specifications
Module Connector Pitch 0.1mm - nature Environmental
Environmental
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% - cable Electronics
Electronics
Controller Documents Sitronix ST7066U
Dot Matrix LCD Controller/DriverInterface 4-bit Parallel, 8-bit Parallel -
picture_as_pdf Datasheets
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Part Change Notices
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Product Update #10918: End-of-Life Notification
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Product Update #10615: White LED backlight improvements: Less current, increased luminance.
