RX240128B - Raystar Optronics, Inc

Graphic LCD Display Module 240x128

Model No. RX240128B

RX240128B is a monochrome 240x128 COG graphic LCD display module. Module size is 122.2x79.8 mm; viewing area is 114.0x64.0 mm. This series has built-in IC ST7586S, supporting 6800 interface (default); other available options for interface are 8080, 3-line/4-line SPI. Logic voltage of this LCD module ranges from 3V-3.6V; typical value is 3V. The module works within temperature from -20°C to+ 70°C. Storage temperature range is from -30°C to+ 80°C. Besides, this model has an extension series with PCB--- RX240128B2.

Data source ref：RX240128B-FHW
Link to Related Product ：RX240128B2

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Datasheet

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COG
Dot Matrix / Resolution	240 × 128 dots	dots
Module Dimension	122.2 × 79.8 × 6.5 (MAX)	mm
Viewing Area	114.0 × 64.0	mm
Active Area	107.98 × 57.58	mm
Dot / Pixel Size	0.43 × 0.43	mm
Dot / Pixel Pitch	0.45 × 0.45	mm
IC	ST7586S
Interface	6800 / 8080 / SPI-4 / SPI-3
Power Supply	3.3V
Duty	1/128 duty cycle
Type	Graphic Display LCD

Pin No.

Symbol

Description

ESD GND

Electro-Static discharge

VG is the power of SEG-drivers

XV0

Negative operating voltage of COM-drivers

Positive operating voltage of COM-drivers

VM is the non-select voltage level of COM-drivers

VDDA

Power supply

VSS

Ground

VD1

Digital power source selection

VDDI

VDD1 is the power of interface I/O circuit

CSB

Chip select input pin
CSB="L"：This chip is selected and the MPU interface is active
CSB="H"： This chip is not selected and the MPU interface is disabled. (D[7:0] are high impedance)

IF3

These pins select interface operation mode

IF3	IF2	IF1	MPU Interface type
H	H	L	80 series 8-bit parallel
H	L	L	68 series 8-bit parallel
L	H	H	8-bit series (4-Line)
L	H	L	9-bit series (3-Line)

Note：Refer to "Interface Selection" for detailed information

IF2

IF1

RSTB

Reset input pin. When RSTB is "L", internal initialization procedure is executed

/RD(E)

Read / Write execution control pin.
(This pin is only used in parallelinterface)

MPU Type	RWR	Description
6800-series	E	Read/ Write control input pin R/W = "H"：When E is "H",data bus is in output status. R/W = "L"：The data are latched at the falling edge of the E signal.
8080-series	/RD	Read enable input pin. When /RD is "L", data bus is in output status.

16~23

D7~D0

The bi-directional data bus of the MPU interface. When CSB is "H", they are high impedance
If using serial interface:
D0 is the SDA signal in 4-Line & 3-Line interface
D1 is the A0 signal in 4-Line interface

/WR/(R/W)

Read / Write execution control pin.
(This pin is only used in parallel interface)

MPU Type	RWR	Description
6800-series	R/W	Read/ Write control input pin R/W ="H"：read R/W = "L"： write
8080-series	/WR	Write enable clock input pin. The data are latched at the rising edge of the /WR signal.

This pin is not used in serial interfaces and should be connected to VDD1

A0(SCL)

The function of this pin is different in parallel and serial interface
In parallel interface: A0 is register selection input
A0 = "H"：inputs on data bus are display data
A0 = "L"：inputs on data bus are command
In serial interface: this pad will be used as SCL (serial-clock) input

ESD GND

Electro-Static discharge

Graphic LCD Display Module 240x128 - RX240128B

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	-	+70	℃
Storage Temperature	TST	-30	-	+80	℃
Digital Power Supply Voltage	VDDI	-0.3	-	3.6	V
Analog Power supply voltage	VDDA	-0.3	-	3.6	V
LCD Power supply voltage	V0-XV0	-0.3	-	19	V
LCD Power supply voltage	VG	-0.3	-	5.5	V

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	-	3.0	3.3	3.6	V
Supply Voltage For LCM	VOP	Ta=-20℃ Ta=25℃ Ta=+70℃	- 14.8 -	- 15.0 -	- 15.2 -	V V V
Input High Volt.	VIH	-	0.7VDD	-	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	-	0.2VDD	V
Supply Current	IDD	VDD=3.3V	-	2.0	4.0	mA