2.23″ 128×32 Capacitive Touch OLED Display

Model No. WEP012832A-CTP

Graphic OLED Display
2.23″ OLED
Structure: COG + Frame + PCB
128×32 Dot Matrix
IC：SSD1305
3V power supply
1/32 duty cycle
Interface: 6800, 8080, SPI, I2C
With Capacitive Touch Screen (CTP)
Detect Point : 1 Finger
Display Color: White / Yellow / Blue

Categories: OLED Module, OLED Touch Display

Description

WEP012832A model has extension item with Capacitive Touch Panel on module; it’s 2.23″ diagonal size, made of 128×32 dot matrix. This OLED module is built-in with SSD1305 IC; it supports 6800/8080 8-bit parallel, I2C, and 4-Wire SPI interface, supply voltage for logic 3.3V, the display with 50% Check board current is 85mA @3.3VDD (typical value), driving duty 1/32, supply voltage for logic 3.0V~5.0V (VDD). This model is having Capacitive Touch Panel on module; it is built-in with FT6336U IC which supports I2C interface, detect point on 1 finger, normal glare surface glass.

WEP012832A-CTP model is a COG OLED display with a PCB on module. There are two methods for options to fix modules on customers’ applications; one is using mounting holes to fix the modules, the other one is using metal pins on PCB board. Furthermore, we provide three options of interface connection for customers to choose, hot bar soldering, metal pins or FPC with connector. We also provide a mini vibration motor and buzzer optional as well.

This OLED module is suitable for smart home application, medical device, smart control, etc. WEP012832A-CTP module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -40℃ to +85℃.

Drawing

2.23 128x32 Capacitive Touch OLED Display - WEP012832A-CTP - Winstar Display

Data source ref: WEP012832AWPP3D00001

SPECIFICATIONS

Interface Pin Function

No.

Symbol

Function

VSS

Ground.

VDD

Power supply pin for core logic operation.

Keep float (i.e. disable). Power supply for panel driving voltage. This is also the most positive power voltage supply pin.

D/C#

This is Data/Command control pin. When it is pulled HIGH (i.e. connect to VDDIO), the data at D[7:0] is treated as data. When it is pulled LOW, the data at D[7:0] will be transferred to the command register.
In I2C mode, this pin acts as SA0 for slave address selection.

R/W#

This is read / write control input pin connecting to the MCU interface.
When interfacing to a 6800-series microprocessor, this pin will be used as Read/Write (R/W#) selection input. Read mode will be carried out when this pin is pulled HIGH (i.e. connect to VDDIO) and write mode when LOW. When 8080 interface mode is selected, this pin will be the Write (WR#) input. Data write operation is initiated when this pin is pulled LOW and the chip is selected.
When serial interface is selected, this pin must be connected to VSS.

E/RD#

When interfacing to a 6800-series microprocessor, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled HIGH (i.e. connect to VDDIO)
and the chip is selected.
When connecting to an 8080-microprocessor, this pin receives the Read (RD#) signal. Read operation is initiated when this pin is pulled LOW and the chip is selected.
When serial interface is selected, this pin must be connected to VSS.

7~14

DB0~DB7

These are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus.
When serial interface mode is selected, D0 will be the serial clock input: SCLK; D1 will be the serial data input: SDIN and D2 should be left opened. When I2C mode is selected, D2, D1 should be tied together and serve as SDAout, SDAin in application and D0 is the serial clock input, SCL.

CS#

This pin is the chip select input. (active LOW)

RES#

This pin is reset signal input. When the pin is LOW, initialization of the chip is executed.
Keep this pin HIGH (i.e. connect to VDDIO) during normal operation.

17,18

BS1, BS2

Communicating Protocol Select.
These pins are MCU interface selection input. See the following table:

	68XX-parallel	80XX-parallel	Serial	I2C
BS1	0	1	0	1
BS2	1	1	0	0

N.C.

No connection.

FG(GND)

Ground.

TP_SCK

I2C Clock

TP_SDA

I2C Data

TP_INT

Interrupt Output
This pin is used as the dedicated interrupt output signal.

TP_RST

Hardware Reset
This pin is to reset hardware for this chip.

TP_VDD

Power supply pin for only touch panel (3.3V).

VSS

Ground.

N.C.

No connection.

N.C.

No connection.

Mechanical Data

Item	Dimension	Unit
Dot Matrix	128 x 32 Dots	－
Module dimension	66.5 x 35.0 x 10.55(Max)	mm
Active Area	55.018 x 13.098	mm
Pixel Size	0.408 x 0.388	mm
Pixel Pitch	0.43 x 0.41	mm
Display Mode	Passive Matrix
Display Color	Monochrome
Drive Duty	1/32 Duty
IC	SSD1305
OLED Interface	6800, 8080, 4-Wire SPI, I2C
Size	2.23 inch

CTP IC	FT6336U
Detect Point	1
CTP Interface	I2C
Surface	Normal Glare

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	4.0	V
Supply Voltage for Display	V0	0	16.0	V
Operating Temperature	TOP	-20	+70	°C
Storage Temperature	TSTG	-40	+85	°C

Touch Panel Controller FT6336U

Parameter	Symbol	Min	Max	Unit
Power Supply Voltage	VDD	-0.3	3.6	V

Electronical Characteristics

DC Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic	VDD	－	3.2	3.3	3.5	V
Supply Voltage for Display	V0	－	12.0	12.5	13.0	V
Input High Volt.	VIH	－	0.8×VDD	－	VDD	V
Input Low Volt.	VIL	－	0	－	0.2×VDD	V
Output High Volt.	VOH	IOUT = 100uA, 3.3MHz	0.9×VDD	－	VDD	V
Output Low Volt.	VOL	IOUT = 100uA, 3.3MHz	0	－	0.1×VDD	V
Operating Current for VDD 50% Check Board	IDD	V0 =12.5V	–	85	128	mA

Touch Panel Controller FT6336U

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage	VDD	－	2.8	3.0	3.3	V
Input High Volt.	VIH	－	0.7xVDD	－	VDD	V
Input Low Volt.	VIL	－	-0.3	－	0.3xVDD	V
Output High Volt.	VOH	I_OH = -0.1mA	0.7xVDD	－	－	V
Output Low Volt.	VOL	I_OH = 0.1mA	－	－	0.3xVDD	V

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