Home Products OLED Module Character OLED Display WEH004002A

OLED 40x2, 5.85 inch OLED

Model No. WEH004002A

►Type: Character
►Structure : COB
►40 characters x 2 Lines
►Built-in Controller WS0010-TX
►5V power supply
►1/16 duty cycle
►Interface: 6800, option 8080, SPI
►Compatible to STN LCD WH4002A
►Display Color: White / Yellow / Sky Blue


Winstar 5.85 inch OLED item no. WEH004002A which has the same outline size, VA size and pin out as Winstar STN LCD standard item of WH4002A. This OLED 40x2 display is built-in WS0010-TX IC which has different interfaces optional; it is default 6800, available options 8080 and SPI. The key features of OLED display are brighter display, much higher contrast display, wider viewing angles, that have faster response times, self-illuminating and lower current consumption.

The WEG020016A is the equivalent Graphic type to WEH004002A. If your applications need Graphic mode to display the contents, you can choose WEG020016A.


WEH004002A - OLED 40x2, 5.85 inch OLED Drawing

Data source ref: WEH004002AWPP5N00100


Interface Pin Function

Pin No. Symbol Level Description
1 VSS 0V Ground
2 VDD 5.0V Supply Voltage for logic
3 NC No connection
4 RS H/L H: DATA, L: Instruction code
5 R/W H/L H: Read(Module→MPU) L: Write(MPU→Module)
6 E H,H→L Chip enable signal
7 DB0 H/L Data bit 0
8 DB1 H/L Data bit 1
9 DB2 H/L Data bit 2
10 DB3 H/L Data bit 3
11 DB4 H/L Data bit 4
12 DB5 H/L Data bit 5
13 DB6 H/L Data bit 6
14 DB7 H/L Data bit 7
15 NC No connection
16 NC No connection

General Specification

Item Dimension Unit
Number of Characters 40 characters × 2 Lines
Module dimension 182.0×38.5×9.3(MAX) mm
View area 154.4×16.5 mm
Active area 148.13×11.85 mm
Dot size 0.57×0.65 mm
Dot pitch 0.62×0.70 mm
Character size 3.05×5.55 mm
Character pitch 3.72×6.3 mm
Panel type OLED , Monochrome
Duty 1/16
IC WS0010-TX
Interface 6800, option 8080, SPI
Size 5.85 inch

Absolute Maximum Ratings

Item Symbol Min Max Unit
Operating Temperature TOP -40 +80 °C
Storage Temperature TST -40 +85 °C
Supply Voltage For Logic VDD-VSS -0.3 5.3 V

Electronical Characteristics

DC Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 4.8 5.0 5.3 V
Input High Volt. VIH 0.8xVDD VDD V
Input Low Volt. VIL GND 0.2xVDD V
Output High Volt. VOH IOH=-0.5mA 0.8xVDD VDD V
Output Low Volt. VOL IOL=0.5mA GND 0.2xVDD V
50% Check Board Operating Current IDD VDD=5V 220 330 mA

Search Keyword: 20x4 oled, oled 20x4

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