EA DIP204B-4NLW ELECTRONIC ASSEMBLY, EA DIP204B-4NLW Datasheet - Page 3

• Manufacturer Part Number: EA DIP204B-4NLW
• Description: LCD Character Display Modules Blue/White Contrast White LED Backlight
• Manufacturer: ELECTRONIC ASSEMBLY

Specifications of EA DIP204B-4NLW

• Character Count X Line: 20 x 4
• Module Size (w X H X T): 75 mm x 27 mm x 11 mm
• Voltage Rating: 3.3 V / 5 V
• Operating Temperature Range: - 20 C to + 70 C
• Backlight Type: LED White
• Interface: 4 Bit, 8 Bit, Serial SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CHARACTER SET
A full character set is built in already.
Additionally to that 8 more characters can
be defined individually.
CONTRAST ADJUSTMENT
Pin 3 requires driving voltage for contrast
VEE. Adjustment can be done by external
potentiometer for example.
Note: In contrast to many other
dotmatrix lcd modules input is
supplied with VDD level here !
Both versions -4NLW and -4HNLEDdo
have
compensatione; so there's no more need
for contrats adjustment while operation
anymore.
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"
2.) Doing 8 times the write command "Data
3.) The new defined character can be used as a "normal" ASCII code (0..7); use with "DD RAM
Command
Function Set
ext. Function Set
Function Set
Display ON/OFF
Clear Display
Entry Mode Set
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical
EA DIP204-4NLED
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.
Write" defines line by line the new
character. 8th. byte stands for the cursor
line.
Address Set" and "Data Write".
a
RS
0
0
0
0
0
0
errors
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Hex
0
0
0
0
0
0
built-in
INITIALISATION EXAMPLE FOR 8 BIT MODE
0
0
0
0
0
0
reserved.
0
0
0
0
0
0
EA DIP204-4HNLED
VEE
1
0
1
0
0
0
EA DIP204B-4NLW
1
0
1
0
0
0
temperature
VDD
0
1
0
1
0
0
1
0
0
1
0
1
2,5k W
0
0
0
1
0
1
0
1
0
1
1
0
$34 8 bit data length, extension bit RE=1
$09 4 line mode
$30 8 bit data length, extension bit RE=0
$0F display on, cursor on, cursor blink
$01 clear display, cursor 1st. row, 1st. line
$06 cursor will be automatically incremented
Description
0 1 0 0 0
Set CG RAM Address
Adresse
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Hex
$40
$41
$42
$43
$44
$45
$46
$47
Addressing:
1st. line
2nd. line
3rd. line
4th. line
EA DIP204-4
7 6 5 4 3 2 1 0
X X X
$00..$13
$20..$33
$40..$53
$60..$73
0 0 1 0 0
0 0 1 0 0
0 0 1 0 0
0 0 1 0 0
1 0 1 0 1
0 1 1 1 0
0 0 1 0 0
0 0 0 0 0
Bit
Data
Page 3
$0E
Hex
$04
$04
$04
$04
$15
$04
$00