Datasheet

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Issue 10.2015

EA DOGM204-A

INCL. CONTROLLER SSD1803A FOR 4-/8-BIT, SPI AND I²C

TECHNICAL DATA

* HIGH-CONTRAST LCD SUPERTWIST DISPLAY

* OPTIONAL LED BACKLIGHT UNITS IN DIFFERENT COLORS

* 4x20 CHARACTER WITH 4.8 mm HEIGHT

* SSD1803A CONTROLLER FOR 4-/8-BIT, SPI (2-/3-/4-WIRE) AND I²C (2-WIRE)

INTERFACE

* SINGLE POWER SUPPLY +3.3V (typically 250µA)

* NO ADDITIONAL VOLTAGES REQUIRED

* OPERATING TEMPERATURE RANGE -20 THROUGH +70°C

* LED BACKLIGHT 3 through 80mA@3.3V or 2 through 40mA@5V

* NO MOUNTING REQUIRED, SIMPLY SOLDER INTO PCB

* 3 DIFFERENT CHARACTER SETS (CYRILLIC, ENGLISH-JAPANESE AND

EUROPEAN) INCLUDED IN THE SAME CONTROLLER

* 2 VIEWING DIRECTION POSSIBLE (BOTTOM AND TOP VIEW)

ORDERING CODE

LCD MODULE 4x20 - 4.8 mm EA DOGM204x-A

x: B = blue background

W = white background transfelctive

S = black background

N = white background reflective

LED BACKLIGHT, WHITE EA LED66X40-W

LED BACKLIGHT, AMBER EA LED66X40-A

LED BACKLIGHT, GREEN/RED EA LED66X40-GR

USB TEST BOARD FOR PC (WINDOWS) EA 9780-3USB

SOCKET CONNECTOR 4.8 mm HIGH (1x22-PIN, 2.54mm PITCH) EA FL-22P

available for 1 pc. off !

even with LED: 5.8mm flat

Summary of content (8 pages)

PAGE 1
Issue 10.2015 EA DOGM204-A INCL. CONTROLLER SSD1803A FOR 4-/8-BIT, SPI AND I²C f! c. of lat p 1 e for 5.8mm f l b a l avai th LED: wi even TECHNICAL DATA * * * * * * * * * * * HIGH-CONTRAST LCD SUPERTWIST DISPLAY OPTIONAL LED BACKLIGHT UNITS IN DIFFERENT COLORS 4x20 CHARACTER WITH 4.8 mm HEIGHT SSD1803A CONTROLLER FOR 4-/8-BIT, SPI (2-/3-/4-WIRE) AND I²C (2-WIRE) INTERFACE SINGLE POWER SUPPLY +3.
PAGE 2
EA DOGM204-A EA DOG SERIES With its EA DOG series, ELECTRONIC ASSEMBLY presents the world’s first display series which will run on 3.3 V systems without auxiliary power. Unlike normal LCD modules, you order the display and the corresponding backlight separately. This gives you a wealth of possible combinations. Designed for compact hand-held devices, this modern LCD range provides a number of real benefits with or without backlight: * extremely compact at 66 x 40 mm at the standard font size of 4.
PAGE 3
EA DOGM204-A 4 DIFFERENT TECHNOLOGIES As a standard we provide 4 different technologies as STN and FSTN: display type technology optional backlight readability display color non backlighted display color with backlighted recommende backlight color FSTN pos. transflective it's fine with and without backlight readable even without backlight black on white black on backlight color white, blue, RGB STN neg.
PAGE 4
EA DOGM204-A APPLICATION EXAMPLES Different wiring must be used depending on the interface. Note that the COG technology means that the current capacity of the outputs is limited. Therefore, a large load on the bus may cause signal loops and unclean levels. If in doubt, additional pull-down resistors (8051) are required or additional waits/NOPs must be incorporated. Page 4 Printing and typographical errors reserved. ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
PAGE 5
EA DOGM204-A INITIALISATION EXAMPLES Initialization Example 8-Bit, SPI and I2C Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Hex Remark Function Set 0 0 0 0 1 1 1 0 1 0 $3A 8 bit data length extension Bit RE=1; REV=0 Extended function set 0 0 0 0 0 0 1 0 0 1 $09 4 line display Entry mode set 0 0 0 0 0 0 0 1 1 0 $06 bottom view Bias setting 0 0 0 0 0 1 1 1 1 0 $1E BS1=1 Function Set 0 0 0 0 1 1 1 0 0 1 $39 8 bit data length extension Bit RE=0; IS
PAGE 6
EA DOGM204-A CHARACTER SET The controller has 3 built-in character sets. They can be selected with the command “ROM-Selection“ in the extended command set.
PAGE 7
EA DOGM204-A SERIAL INTERFACE (SPI) The serial interface always needs a synchronization byte. In write mode, the byte to send hast to be devided in two bytes, into the “lower data“ and “upper data“. Please refer to the chart below. The maximum clock frequency for SCLK is 1 MHz. SPI, 2-/3-WIRE With 2 or 3 lines SCLK, SID and SOD (if necessary) the display EA DOGM204-A may be connected directly to the SPI interface of a µC.
PAGE 8
ELECTRONIC ASSEMBLY GmbH Zeppelinstraße 19 D-82205 Gilching Germany Fon: Fax: e-Mail: Web: +49 (0)8105-77 80 90 +49 (0)8105-77 80 99 info@lcd-module.de www.lcd-module.com Note: The 6 LED pins A1, C1, A2, C2 (or AGR, CR, CR) must be soldered from the top to ensure a clean contact.