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Product
20x4 Parallel Character OLED
Part Number: CFAL2004A-Y
Consider using this 4x20 character yellow OLED to possibly lower the power requirements for designs using a STN character display.
Also available in other color variations
8-bit or 4-bit parallel interface
The WS0010 controller interface is very similar to industry standard Hitachi HD44780.
Operating temperature range from -40°C to 80°.C
Module Metric Imperial
Overall Width
98.00 mm
3.858 in
Overall Height
60.00 mm
2.362 in
Overall Depth
10.00 mm
0.394 in
Diagonal Dimension
2.88 in
Weight
48 g
Shape
Rectangle
PCB Metric Imperial
PCB Width
98.00 mm
3.858 in
PCB Height
60.00 mm
2.362 in
PCB Depth
10.00 mm
0.394 in
Display Area Metric Imperial
Active Area Width
70.16 mm
2.762 in
Active Area Height
20.95 mm
0.825 in
Viewing Width
77.00 mm
3.031 in
Viewing Height
25.20 mm
0.992 in
Character Geometry Metric Imperial
Character Width
2.90 mm
0.114 in
Character Height
4.75 mm
0.187 in
Character Pitch Width
3.54 mm
0.139 in
Character Pitch Height
5.40 mm
0.213 in
Dot Geometry Metric Imperial
Dot Pitch Width
0.59 mm
0.023 in
Dot Pitch Height
0.60 mm
0.024 in
Dot Size Width
0.54 mm
0.021 in
Dot Size Height
0.55 mm
0.022 in
Connectors
Module Connector Type
header
Module Connector Pitch
2.54 mm (0.10 in)
Technology
Display Technology
OLED
Display Addressing
Passive
Glass Type
OLED
Mode
Positive
Polarizer
Emissive
Display Colors
Foreground Color
Yellow
Background Color
Black
Min Typ Max Unit Supply Voltage - Logic
Supply Voltage for Logic
4.8
5
5.3
V
Supply Current
—
55
—
mA
Available Interfaces
Standard Interface(s)
SPI, 8-bit Parallel, 4-bit Parallel
Temperature
Min (°C) Max (°C) Min (°F) Max (°F)
Operating Temperature
-40°C
80°C
-40°F
176°F
Storage Temperature
-40°C
80°C
-40°F
176°F
Humidity
Relative Humidity 0% to 90% RH (non-condensing)
Controller
Built-in Controller
Winstar Display WS0010
Datasheets Documents & Files
Products Affected:
CFAL2004A-Y, CFAL1602H0-Y Date Issued:
January 14, 2025 Summary:
PCB Modification Description:
The PCB is being modified to accommodate a new IC in the boost circuit. The boost circuit is not used on this OLED variant and does not affect the functionality. Reason:
The IC is being changed to address lead time issues. Availability:
Contact Crystalfontz Support for up-to-date information by emailing support@crystalfontz.com.
Products Affected:
CFAL2004A-Y, CFAL2002A-Y, CFAL1602L0-Y, CFAL1202A-Y, CFAL5016A-Y, CFAL0802A-Y, CFAL1602C-B, CFAL1602C-W, CFAL1602C-Y Date Issued:
August 17, 2021 Summary:
Reset Pin Change Description:
RST and CST, the components in the RC filter for the reset pin, are being modified. RST will be 33kOhms and CST will be 1uF. Reason:
Some reset circuits have shown not to be strong enough to drive the reset pin within the specified timing. If the reset circuit is not strong enough, the controller will not properly reset which causes abnormal behavior.
Products Affected:
CFAL2004A-Y, CFAL2002A-Y, CFAL1602L0-Y, CFAL1202A-Y, CFAL5016A-Y, CFAL0802A-Y, CFAL1602C-W, CFAL1602C-Y, CFAL1602C-YT, CFAL1602C-PW, CFAL1602C-PY, CFAL5016A-PY Date Issued:
February 10, 2021 Summary:
Small Layout Change Description:
Changing manufacturing locations of the wafers used in the controller chip. The layout has to be slightly modified to accommodate the practices at the new facility. The functionality will remain the same. Reason:
Changing manufacturing locations due to the wafer process no longer being supported by the original facility.
Product Affected:
CFAL2004A-Y Date Issued:
January 22, 2019 Summary:
Bezel Change Description:
The Bezel will be modified to add 2 holes on each of the right and left sides of the Bezel. Reason:
This will improve the Bezel alignment and installation during the assembly process. Impact:
This will not affect the operation of the display. Recommendation:
None Availability:
The displays with the revised Bezels will be available after current stock is depleted. Price Change:
None
New Product:
CFAL2004A-Y Date Issued:
May 6, 2013 Summary:
(New Product) CFAL2004A-Y Description:
OLED Modules: Parallel Character OLED 20x4, RoHS Compliant, Yellow, -40°C to +80°C
New Product:
CFAL2004A-Y Date Issued:
January 13, 2012 Summary:
(New Product) CFAL2004A-Y Description:
Under OLED Modules: Parallel Character OLED 20x4, RoHS Compliant, Yellow, -20°C - +70°C
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