LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar
LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A - Raystar

LCD 202×32 Graphic Display Module 4.75-inch COB (RW1020 IC)

Model No. RG20232A

The RG20232A is a 4.75-inch LCD 202×32 COB graphic module designed for industrial and embedded applications that require clear visibility and stable performance. This LCD 202×32 display features a PCB with screw holes and a peripheral circuit, making mounting and integration fast and convenient. The RG20232A delivers excellent display quality supported by the RW1020 controller IC and a 1/32 duty cycle, ensuring consistent operation in demanding environments.

This LCD 202×32 graphic module supports LED backlight options in yellow-green or white, and offers transflective or transmissive polarizer types to suit different lighting environments. Operating at a 5V logic supply with a typical current of 10mA, the RG20232A LCD 202×32 display ensures reliable performance over a wide temperature range from -20°C to +70°C, making it ideal for control panels, measuring instruments, and embedded systems.

If you need technical support or product quotes for the RG20232A LCD 202×32 module or other 202×32 graphic LCD modules, please feel free to contact our sales team!

Data Source Ref: RG20232A-BIW-V

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
Structure COB
Size (Diagonal) 4.75 inch
Dot Matrix / Resolution 202 × 32 dots
Module Dimension 146.0 × 43.0 × 13.7 (Max) mm
Viewing Area 123.0 × 23.0 mm
Active Area 119.16 × 18.86 mm
Mounting Hole 139.0 × 36.0 mm
Dot / Pixel Size 0.57 × 0.57 mm
Dot / Pixel Pitch 0.59 × 0.59 mm
IC RW1020
Interface 6800 / 8080
Power Supply 2.85 - 5V
Duty 1/32 duty cycle
Type Graphic LCD Display
Feature Built-in oscillation

Pin Assignment and Signal Description

Pin No. Symbol Level Description
1 VSS 0V Ground
2 VDD 5.0V Power Supply
3 VO (Variable) Operating voltage for LCD
4 A0 H/L H : Data L : Instruction
5 R/W H/L Read/Write (R/W) signal for the 68-type microcontroller,
or WRITE(WR) signal for the 80-type microcontroller.
If a 68-type microcotroller is selected as the host microcontroller, this pin should be connected to the R/W output of the microcontroller. A HIGH level on this pin indicates that the microcontroller intends to read from the SBN1661G_X series. A LOW level on this pin indicates that the microcontroller intends to write to the RW1020_X series.
If a 80-type microcontroller is selected as the host microcontroller, this pin should be connected to the WR output of the microcontroller. A LOW level on this pin indicates that the microcontroller intends to write to the RW1020_X series.
6 CS1 H/L Enable signal (E) for the 68-type microcontroller, or READ (RD) signal for the 80-type microcontroller.
If a 68-type microcotroller is selected as the host microcontroller, this pin should be connected to the ENABLE output of the microcontroller. A HIGH level on this pin indicates that the microcontroller intends to select the RW1020_X series.
If a 80-type microcontroller is selected as the host microcontroller, this pin should be connected to the RD output of the microcontroller. A LOW level on this pin indicates that the microcontroller intends to read from the RW1020_X series..
7 DB0 H/L Bi-direction, tri-state 8-bit parallel data bus for interface with a host microcontroller.
This data bus is for data transfer between the host microcontroller and the RW1020_X.
8 DB1 H/L Bi-direction, tri-state 8-bit parallel data bus for interface with a host microcontroller.
9 DB2 H/L This data bus is for data transfer between the host microcontroller and the RW1020_X.
10 DB3 H/L Bi-direction, tri-state 8-bit parallel data bus for interface with a host microcontroller.
11 DB4 H/L This data bus is for data transfer between the host microcontroller and the RW1020_X.
12 DB5 H/L Bi-direction, tri-state 8-bit parallel data bus for interface with a host microcontroller.
13 DB6 H/L This data bus is for data transfer between the host microcontroller and the RW1020_X.
14 DB7 H/L Bi-direction, tri-state 8-bit parallel data bus for interface with a host microcontroller.
15 VEE - Negative Voltage Output
16 RES H/L Hardware RESET and interface type selection.
This pin is a dual function pin. It can be used to reset the RW1020_X and select the type of interface timing.
The hardware RESET is edge-sensitive. It is not level-sensitive. That is, either a falling edge or a rising edge on this pin can reset the chip. The voltage level after the reset pulse selects the type of interface timing. If the voltage level after the reset pulse stays at HIGH, interface timing for the 68-type microcontroller is selected. If the voltage level after the reset pulse stays at LOW, then interface timing for the 80-type microcontroller is selected.
Therefore, a positive RESET pulse selects the 80-type microcontroller for interface and a negative RESET pulse selects the 68-type microcontroller for interface.
The following diagram illustrates the reset pulse and the selected type of microcontroller.
17 A － Power Supply for LED backlight  ( + )
18 K － Power Supply for LED backlight  ( - )
19 CS2 H/L Enable signal (E) for the 68-type microcontroller, or READ (RD) signal for the 80-type microcontroller.
If a 68-type microcotroller is selected as the host microcontroller, this pin should be connected to the ENABLE output of the microcontroller. A HIGH level on this pin indicates that the microcontroller intends to select the RW1020_X series.
If a 80-type microcontroller is selected as the host microcontroller, this pin should be connected to the RD output of the microcontroller. A LOW level on this pin indicates that the microcontroller intends to read from the RW1020_X series..
20 CS3 H/L Enable signal (E) for the 68-type microcontroller, or READ (RD) signal for the 80-type microcontroller.
If a 68-type microcotroller is selected as the host microcontroller, this pin should be connected to the ENABLE output of the microcontroller. A HIGH level on this pin indicates that the microcontroller intends to select the RW1020_X series.
If a 80-type microcontroller is selected as the host microcontroller, this pin should be connected to the RD output of the microcontroller. A LOW level on this pin indicates that the microcontroller intends to read from the RW1020_X series.

Mechanical Outline and Mounting Details

LCD 202×32 Graphic Display Module COB 4.75-inch - RG20232A Contour Drawing - Raystar

Operating and Storage Conditions

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 － +70 ℃
Storage Temperature TST -30 － +80 ℃
Input Voltage VI -0.3 － VDD+0.3 V
Supply Voltage For Logic VDD-VSS -0.3 － +6.0 V
LCD Bias Voltage VLCD 3.5 － 13 V

Input Voltage and Current Parameters

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS － 4.5 5.0 5.5 V
Supply Voltage For LCD VDD-V0 Ta=-20℃
Ta=25℃
Ta=+70℃		 －
4.8
－		 －
5.0
－		 －
5.2
－		 V
V
V
Input High Volt VIH VDD =5.0V 3.0 5.0 VDD+0.5 V
Input Low Volt VIL － 0 0.7 1.1 V
Output High Volt VOH － VDD-0.3 － VDD V
Output Low Volt VOL － 0 － 0.3 V
Supply Current IDD VDD=5.0V － 10.0 － mA

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