LCD MODULE 4x20 - 3.75mm
INCL. CONTROLLER SSD1803
Issue 4.2013
Zeppelinstr. 19
·
D-82205 Gilching
·
Phone +49-(0)8105-77 8090
·
Fax +49-(0)8105-778099
·
www.lcd-module.de
·
info@lcd-module.de
FEATURES
*HIGH CONTRAST LCD SUPERTWIST DISPLAY
*CONTROLLER SSD1803 (NEARLY 100% COMPATIBLE WITH HD44780)
*INTERFACE FOR 4- AND 8-BIT DATA BUS
*SERIAL SPI INTERFACE (SID, SOD, SCLK)
*POWER SUPPLY +2.7 V ~ +3.45V / 1.5mA
*LED BACKLIGHT Y/G max. 150mA@+25°C
LED BACKLIGHT BLUE-WHITE AND BLACK-WHITE max. 45mA@+25°C
*OPERATING TEMPERATURE RANGE -20..+70°C
*BUILT-IN TEMPERATURE COMPENSATION
*SOME MORE MODULES WITH SAME SIZE AND SAME PINOUT:
- DOTMATRIX 1x8, 2x16
- GRAPHIC 122x32
*NO SCREWS REQUIRED: SOLDER ONTO PCB ONLY
*DETACHABLE VIA 9-PIN SOCKET EA B200-9 (2 PCS REQUIRED)
ORDERING INFORMATION
LCD MODULE 4x20 - 3.73mm WITH LED BACKLIGHT Y/G EA DIP203G-4NLED
BLUE-WHITE EA DIP203B-4NLW
BLACK-WHITE EA DIP203J-4NLW
9-PIN SOCKET, HEIGHT 4.3mm (1 PC.) EA B200-9
EA DIP203B-4NLW
Dimension 75 x 27 mm
EA DIP203G-4NLED
Dimension 68 x 27 mm
EA DIP203J-4NLW
EA DIP203-4
Page 2
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
PINOUT
TABEL OF COMMAND (SSD1803, IE=HIGH)
Instruction
C ode
Description
Execute
Time
(270kHz)
RE
Bit RS R/W DB
7
DB
6
DB
5
DB
4
DB
3
DB
2
DB
1
DB
0
Clear Display * 0 000000001Clears all display and returns the cursor to the
home position (Address 0). 1.53ms
Cursor At Home 0 0 0000 0 0 0 1 *
Returns the Cursor to the home position (Address
0). Also returns the display being shifted to the
original position. DD RAM contents remain
unchanged.
1.53ms
Power Down
Mode 1000000001PD
Set Power down mode bit.
PD=0: powerdown mode disable
PD=1: powerdown mode enable
39µs
Entry Mode Set
0 0 0 0 0 0 0 0 1 I/D S Cursor moving direction (I/D=0: dec; I/D=1: inc)
shift enable bit (S=0: disable; S=1: enable shift) 39µs
1 0 0 0 0 0 0 0 1 1 BID Segment bidirectional function
(BID=0: Seg1->Seg60; BID=1: Seg60->Seg1) 39µs
Display On/Off
Control 0 0 0 0 0 0 0 1 D C B
D=0: display off; D=1: display on
C=0: cursor off; C=1: cursor on
B=0: blink off; B=1: blink on
39µs
extended
Function Set 1 0 0 0 0 0 0 1 FW BW NW
FW=0: 5-dot font width; FW=1: 6-dot font width
BW=0: normal cursor; BW=1: inverting cursor
NW=0: 1- or 2-line (see N); NW=1: 4-line display
39µs
Cursor / Display
Shift 0000001S/C R/L * *
Moves the Cursor or shifts the display
S/C=0: cursor Shift; S/C=1: display shift
R/L=0: shift to left; R/L=1: shift to right
39µs
Scroll Enable 1000001H4 H3 H2 H1 Determine the line for horizontal scroll 39µs
Function Set
0 0 0 0 0 1 DL NRE DH RE
sets interface data length (DL=0:4-bit; DL=1:8-bit)
number of display lines (N=0: 1-line; N=1: 2-line)
extension register (RE= 0/1)
scroll/shift (DH=0: dot scroll; DH=1: display shift)
reverse bit (REV=0:normal; REV=1:inverse display)
39µs
1 0 0 0 0 1 DL NRE BE LP CG-/SEG-RAM blink (BE=0: disable; BE=1: enable)
LP=0: normal mode; LP=1: low power mode 39µs
CG RAM
Address Set 00001 AC Sets the CG RAM address. CG RAM data is sent
and received after this setting. 39µs
SEG RAM
Address Set 1 0 0 0 1 * *AC Sets the SEG RAM address. SEG RAM data is sent
and received after this setting. 39µs
DD RAM
Address Set 0001 AC Sets the DD RAM address. DD RAM data is sent
and received after this setting. 39µs
Set Scroll
Quantity 1001 * SQ Sets the quantity of horizontal dot scroll (DH=0) 39µs
Busy Flag /
Address Read *01BF AC
Reads Busy flag (BF) indicating internal operation is
being performed and reads address counter
contents.
-
Write Data * 1 0 Write Data Writes data into internal RAM
(DD RAM / CG RAM / SEGRAM) 43µs
Read Data * 1 1 Read Data Reads data from internal RAM
(DD RAM / CG RAM / SEGRAM) 43µs
BACKLIGHT
Using the LED backlight requires a current source or external current-limiting resistor. Forward
voltage for yellow/green backlight is 3.9~4.2V and for white LED backlight is 3.0~3.6V. Please take
care of derating for Ta>+25°C.
Note: Do never connect backlight directly to 5V; this may destroy backlight immediately !
Pin Symbo Level Function Pin Symbo Level Function
1 VSS L Power Supply 0V (GND) 10 D3 H / L Display Data
2 VDD H Power Supply +3.3V 11 D4 (D0) H / L Display Data
3 VEE - Contrast adjustment, input 12 D5 (D1) H / L Display Data
4 RS (CS) H / L H=Data, L=Command 13 D6 (D2) H / L Display Data
5R/W
(SID) H / L H=Read, L=Write 14 D7 (D3) H / L Display Data, MSB
6 E (SCLK) H Enable (falling edge) 15 - - NC (see EA DIP122-5N)
7 D0 (SOD) H / L Display Data, LSB 16 RES L Reset (internal Pullup 10k)
8 D1 H / L Display Data 17 A - LED B/L+ Resistor required
9 D2 H / L Display Data 18 C - LED B/L-
EA DIP203-4
Page 3
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
CONTRAST ADJUSTMENT
Pin 3 requires driving voltage for contrast
VEE. Adjustment can be done by external
potentiometer for example. The capacitor
is for a better startup behaviour.
Note: In contrast to many other
dotmatrix lcd modules input is
supplied with VDD level here !
CREATING YOUR OWN CHARACTERS
All these character display modules got the feature to create 8 own characters (ASCII Codes 0..7) in
addition to the 240 ROM fixed codes.
1.) The command "CG RAM Address Set"
defines the ASCII code (Bit 3,4,5) and the
dot line (Bit 0,1,2) of the new character.
Example demonstrates creating ASCII
code $00.
2.) Doing 8 times the write command "Data
Write" defines line by line the new
character. 8th. byte stands for the cursor
line.
3.) The newly defined character can be used as a "normal" ASCII code (0..7); use with "DD RAM
Address Set" and "Data Write".
Set CG RAM Address Data
Adresse He x Bit Hex
76543210
01000
000 $40
XXX
00100 $04
001 $41 00100 $04
010 $42 00100 $04
011 $43 00100 $04
100 $44 10101 $15
101 $45 01110 $0E
110 $46 00100 $04
111 $47 00000 $00
Addressing:
1st. line $00..$13
2nd. line $20..$33
3rd. line $40..$53
4th. line $60..$73
CHARACTER SET
A full character set is built-in already.
Additionally to that 8 more characters can
be defined individually.
INITIALISATION EXAMPLE FOR 8 BIT MODE
Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Hex Description
Function Set 0 0 0 0 1 1 0 1 0 0 $34 8 bit data length, extension bit RE=1
ext. Function Set 0 0 0 0 0 0 1 0 0 1 $09 4 line mode
Function Set 0 0 0 0 1 1 0 0 0 0 $30 8 bit data length, extension bit RE=0
Display ON/OFF 0 0 0 0 0 0 1 1 1 1 $0F display on, cursor on, cursor blink
Clear Display 0 0 0 0 0 0 0 0 0 1 $01 clear display, cursor 1st. row, 1st. line
Entry Mode Set 0 0 0 0 0 0 0 1 1 0 $06 cursor will be automatically incremented
All versions do have a built-in temperature
compensation; so there's no more need
for contrast adjustment during operation
anymore.
2,5kW2,5kW
VEE
VDD
+
10µF
EA DIP203-4
Page 4
Zeppelinstr. 19
·
D-82205 Gilching
·
Phone +49-(0)8105-778090
·
Fax +49-(0)8105-778099
·
www.lcd-module.de
·
info@lcd-module.de
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
SERIAL MODE
Factory setting for interface is parallel with 4 bit or 8 bit data bus. Alternatively the module can be used
with serial data stream. For that, solder link SPI has to be closed. Specification for serial
operation mode is described in user manual for SSD1803:
http://www.lcd-module.de/fileadmin/eng/pdf/zubehoer/ssd1803_2_0.pdf
all dimensions are in mm
DRIVING WITH 5V-SYSTEMS
The supply voltage of the display is necessarily 3.3V.
If a 5V-system is used, the level have to be adapted.
For example you can use a bidirectional levelshifter
(e.g. PS 74LVC4245A), like shown in the opposite
figure.
COMPATIBILITY WITH EA DIP204-4
The displays of EA DIP203 and EA DIP204 series are
electrically and mechanically identical to each other
running with 3.3V supply mode.
Merely a 5V supply is not acceptable with the new
EA DIP203 series.
Note:
LC-Displays are generally not suited to wave or reflow
soldering. Temperatures of over 80°C can cause lasting
demage.
EA DIP203G-4NLED
EA DIP203B-4NLW and EA DIP203J-4NLW
ATTENTION
handling precautions!