Circular LCD Display Module, Circular LCD Screen

Circular LCD Screen, Circular LCD Display Module 128x128

Model No. RX128128A

We are now producing circular displays with different technologies for a variety of applications and markets. Compared to traditional rectangular displays, many needs for beautiful round circular displays have been increasing in the market. They are a good fit for many applications such as home appliances, consumer products, industrial products, etc. The resolution of this circular LCD display is 128x128. This display communicates over 8080, 6800/4-line/ 3-line SPI or I2C interface.

Data source ref: RX128128A-FHW

Link to Related Product RX128128A2

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Item	Dimension	Unit
Structure	COG
Dot Matrix / Resolution	128 × 128	dots
Module Dimension	55.0 × 57.0 × 6.18	mm
Viewing Area	42.0 × 42.0	mm
Active Area	44.0 × 44.0	mm
Dot / Pixel Size	0.308 × 0.308	mm
Dot / Pixel Pitch	0.310 × 0.310	mm
Backlight Type	LED
IC	ST75161
Interface	6800,8080,SPI,I2C
Power Supply	3.3V
Duty	1/136 DUTY,1/12 BIAS
Type	Graphic LCD Display Module

Pin No.	SYMBOL	Function
1	VG	VG is the power of SEG-drivers.
2	V0	Positive operating voltage of COM-drivers.
3	XV0	Negative operating voltage of COM-drivers.
4	CA1P	DC/DC voltage converter
5	CA1N	DC/DC voltage converter
6	VDD	Power supply
7	VSS	Ground
8	COMSCN	Set scan direction of COM.
9	IF2	These pins select interface operation mode.
10	IF1
11	IF0
12	CSB	Chip select input pin.
13	A0	It determines whether the access is related to data or command.
14	ERD	Read / Write execution control pin.
15	RWR	Read / Write execution control pin.
16	RSTB	Hardware reset input pin
17-24	D0-D7	When using 8-bit parallel interface: 8080 or 6800 mode:8 bit bi-directional data bus When using serial interface : 4-line SPI or 3-line SPI mode D[7:4] : fix to “H” by VDD1. D[3:1] : serial input/output data (SDA). D[0] : serial input clock (SCL). D1 to D3 must be connected together (SDA) When using serial interface : I2C interface D[7] : SA[1], I2C slave address bit. Must be connected to VDD1 or VSS1. D[6] : SA[0], I2C slave address bit. Must be connected to VDD1 or VSS1. D[5:4] : fix to “H” by VDD1. D[3:2] : SDA_OUT, serial data and acknowledge output for the I2C interface. D[1] : SDA_IN, serial input data D[0] : SCL, serial input clock . D1 to D3 must be connected together (SDA) CSB must be fixed to “L” by VSS1.
25	A	Anode input for LED backlight.
26	K	Cathode input for LED backlight

Circular LCD, Circular LCD Display, Circular LCD Display Module, Circular LCD Screen 128x128 - RX128128A

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	－	+70	℃
Storage Temperature	TST	-30	－	+80	℃
Power Supply Voltage	VDD	-0.3	－	4.0	V
LCD Power supply voltage	VLCD	-0.3	－	20	V
LCD Power supply voltage	V0-XV0	-0.3	－	19	V
Input voltage	VIN	-0.3		VDD+0.3	V

Item	Symbol	Condition	Min.	Typ.	Max.	Unit
Supply Voltage For Logic	VDD-VSS	－	2.7	3.0	3.3	V
Supply Voltage For LCD	VOP	Ta=-20℃ Ta=25℃ Ta=70℃	－ 13.7 －	－ 14.0 －	－ 14.3 －	V V V
Input High Volt.	VIH	－	0.7 VDD	－	VDD	V
Input Low Volt.	VIL	－	Vss	－	0.3 VDD	V
Output High Volt.	VOH	－	0.8 VDD	－	VDD	V
Output Low Volt.	VOL	－	Vss	－	0.2 VDD	V
Supply Current	IDD	VDD=3.0V	－	－	2.0	mA