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C202C-YTY-LW63

C202C-YTY-LW63

Product catalog summary

Overview:
The document outlines the technical specifications and handling instructions for the C202C-YTY-LW63 Character LCD Module. This module features a 20x2 character display with a yellow positive STN LCD, a transflective display, and a yellow LED backlight. It operates on a 3.3V input voltage and is controlled by the ST7066U controller, adhering to RoHS standards.

Specifications:

Display Format: 20 characters x 2 lines
Character Format: 5x7 dots with cursor
Interface: 4/8-bit parallel
Module Size: 146.0mm x 43.0mm x 13.8mm
Viewing Area: 122.0mm x 23.0mm
Operating Temperature: -20°C to 70°C
Storage Temperature: -30°C to 80°C

Electrical Characteristics:

Supply Voltage: 3.1V to 3.5V
Supply Current: 1.0mA to 2.5mA
Backlight Supply Voltage: 3.1V to 3.5V
Backlight Supply Current: 5mA to 25mA

Instructions:
The module supports various display control instructions such as clear display, return home, entry mode set, display on/off control, cursor or display shift, and function set. These instructions require specific timing signals from the MPU.

Handling Precautions:

Avoid mechanical shock and excessive pressure on the display.
Handle the polarizer carefully to prevent scratches.
Ensure proper grounding to prevent static electricity damage.
Follow recommended soldering practices to avoid module damage.

Soldering Specifications:

Temperature: 280°C with a tolerance of +10°C.
Soldering Time: 3 to 4 seconds.
Use eutectic solder with resin flux filling.
If flux is used, protect the LCD surface to avoid spattering.
Remove any flux residue after soldering.

Operation Precautions:

The viewing angle can be adjusted by varying the LCD driving voltage (Vo).
Use a symmetric pulse waveform with no DC component to prevent electro-chemical reactions.
Ensure the driving voltage remains within the specified range to avoid shortening the display life.
Response time increases as temperature decreases.
Display color may be affected at temperatures above the operational range.
Maintain temperature within the specified range for usage and storage to prevent polarization degradation, polarizer peel-off, or bubble generation.
For long-term storage above 40°C, keep relative humidity below 60% and avoid direct sunlight.

Catalog excerpts

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This is a STN (Super-Twisted Nematic) Yellow Positive Character LCD (Liquid Crystal Display) that can display twenty characters on two lines (20x2). This model is composed of a transflective type LCD Panel, a built-in driver IC and a backlight unit. Character Format: 5x7 Dots with Cursor Display Format: 20 Characters x 2 Lines Interface: 4/8-bit Parallel Controller: ST7066U (or equivalent) RoHS Compliant

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x , '□□□□□ □ 1 □□□□□ □ □□□□□ □□□□□ □ □□□□□ □ □□□□□ □□□□□ 1) . D river Method: 1/16duty, 1/5bias, VDD: 3.3V VLCD: 3.3V 2) . D i splay Type: STN Yellow Positive, T ransflective, 6:00 Viewing Angle 3) . Operating Temp: -20°C~70°C Storage Temp: -30°C~80°C 4) . Backlight Type: Edge, Yellow <♦ FocusLCDs.com LCDs MADE SIMPLE® UNIT: Page

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2. Input Terminal Pin Assignment 4. Contrast Adjusting Circuit

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5. LCD Optical Characteristics 6. Electrical Characteristics 6.1 Absolute Maximum Rating (Ta=25 °C, VSS=0V)

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Read Mode Timing Diagram

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8. Instructions To overcome the speed difference between the internal clock of ST7066 (or equivalent) and the MPU clock, ST7066 performs internal operations by storing control in formations to IR or DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus. Instructions can be divided largely into four groups: 1) ST7066 function set instructions (set display methods, set data length, etc.) 2) Address set instructions to internal RAM 3) Data transfer instructions with internal RAM The address of the internal RAM is automatically increased or...

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Set the moving direction of cursor and display. I/D: increment / decrement of DDRAM address (cursor or blink) When I/D="high", cursor/blink moves to right and DDRAM address is increased by 1. When I/D="Low", cursor/blink moves to left and DDRAM address is increased by 1. CGRAM operates the same way as DDRAM, when reading from or writing to CGRAM. SH: shift of entire display When DDRAM read (CGRAM read/write) operation or SH="Low", shifting of entire display is not performed. If SH ="High" and DDRAM write operation, shift of entire display is performed according to I/D value. (I/D="high". shift...

Open the catalog to page 8

This instruction makes DDRAM data available from MPU. When 1-line display mode (N=LOW), DDRAM address is form "00H" to "4FH".In 2-line display mode (N=High), DDRAM address in the 1st line form "00H" to "27H", and DDRAM address in the 2nd line is from "40H" to "67H". Read binary 8-bit data from DDRAM/CGRAM. The selection of RAM is set by the previous address set instruction. If the address set instruction of RAM is not performed before this instruction, the data that has been read first is invalid, as the direction of AC is not yet determined. If RAM data is read several times without RAM address...

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9. Cautions and Handling General Precautions: 1. LCD panel is made of glass. Avoid excessive mechanical shock or applying strong pressure onto the surface of display area. 2. The polarizer used on the display surface is easily scratched and damaged. Extreme care should be taken when handling. To clean dust or dirt off the display surface, wipe gently with cotton, or other soft material soaked with isoproply alcohol, ethyl alcohol or trichlorotriflorothan. Do not use water, ketone or aromatics and never scrub hard. 3. Do not tamper in any way with the tabs on the metal frame. 4. Do not make any...

Open the catalog to page 10

C202C-YTY-LW63

C202C-YTY-LW63

Catalog excerpts

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