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This display is not recommended for new designs. Once our stock is depleted it will no longer be available. If you would like to use a similar part, the blue version is still available: CFAH2004AP-TMI-EW.

20x4 SPI Character LCD Display

Part Number: CFAH2004AP-TFH-EW

Dark text on gray 20x4 SPI character LCD module.

Character Matrix: 20x4 Characters
Optics: 6:00 viewing direction
Backlight: White Edge LED
Glass: STN Positive, Transflective
Controller: Sitronix ST7066U (HD44780 compatible)
Operating Temp: -20°C to +70°C
Compliance: REACH & RoHS Compliant

Product Variations

Interfaces	SPI I2C 4-bit Parallel, 8-bit Parallel

Colors	Dark on Gray White LED Backlight White on Blue White LED Backlight Dark on Yellow-Green Yellow-Green LED Backlight Yellow-Green on Dark Yellow-Green LED Backlight Dark on Yellow-Green No Backlight

Physical Characteristics
Physical Characteristics

Characters x Lines 20 x 4

Module Overall width height depth

millimeters 98 60 13.6

inches 3.86 2.36 0.54

Diagonal Dimension 2.89"

Viewing Area Width Height

millimeters 77 25.2

inches 3.03 0.99

Active Area Width Height

millimeters 70.4 20.8

inches 2.77 0.82

Character Size Width Height

millimeters 2.95 4.75

inches 0.116 0.187

Character Pitch Width Height

millimeters 3.35 5.35

inches 0.132 0.211

Dot Size Width Height

millimeters 0.55 0.55

inches 0.022 0.022

Dot Pitch Width Height

millimeters 0.6 0.6

inches 0.024 0.024

Weight 73.3g

Pin Count 16
Optical Characteristics
Optical Characteristics

Glass Type/Glass Color STN/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 Gray

Module Overall	width	height	depth
millimeters	98	60	13.6
inches	3.86	2.36	0.54

Viewing Area	Width	Height
millimeters	77	25.2
inches	3.03	0.99

Active Area	Width	Height
millimeters	70.4	20.8
inches	2.77	0.82

Character Size	Width	Height
millimeters	2.95	4.75
inches	0.116	0.187

Character Pitch	Width	Height
millimeters	3.35	5.35
inches	0.132	0.211

Dot Size	Width	Height
millimeters	0.55	0.55
inches	0.022	0.022

Dot Pitch	Width	Height
millimeters	0.6	0.6
inches	0.024	0.024

Electrical Specification

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

Environmental
Environmental

Operating Temperatures min max

Celsius -20° 70°

Fahrenheit -4° 158°

Storage Temperatures min max

Celsius -30° 80°

Fahrenheit -22° 176°
Electronics
Electronics

Controller Documents RockWorks RW1063-0B-002
RW1063-0B-002
16COM/40SEG DRIVER & CONTROLLER

Interface SPI
Datasheets

picture_as_pdf
CFAH2004AP-TFH-EW Datasheet
Files and Downloads

folder_zip Software Source - SPI Arduino Demonstration Sketch
folder_zip Hardware Design - 3D Model
link Fork this on Github
Compliance Documents

picture_as_pdf Declaration of Conformity RoHS2

picture_as_pdf Declaration of Conformity REACH
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Operating Temperatures	min	max
Celsius	-20°	70°
Fahrenheit	-4°	158°

Storage Temperatures	min	max
Celsius	-30°	80°
Fahrenheit	-22°	176°

Change Notices

Part Change Notice #11054: End-Of-Life Notification

Product Affected:	CFAH2004AP-TFH-EW
Date Issued:	October 31, 2019
Summary:	End-Of-Life Notification
Description:	The part listed is being set to end of life
Reason:	The glass used in this part is not available.
Impact:	This part will not be available once our current stock is depleted.
Recommendation:	Crystalfontz is working on a replacement, but one is not available at this time.
Availability:	Current stock only

Product Update #10883: (New Product) CFAH2004AP-TFH-EW

New Product:	CFAH2004AP-TFH-EW
Date Issued:	October 16, 2017
Summary:	(New Product) CFAH2004AP-TFH-EW
Description:	Standard Character Modules: SPI Character LCD 20x4 with dark letters on gray background