NHD-0420DZ-FL-YBW Newhaven Display, NHD-0420DZ-FL-YBW Datasheet - Page 8
![LCD MOD CHAR 4X20 Y/G TRANSFL](/photos/7/90/79061/mfg_nhd-0420dz-fl-ybw_sml.jpg)
NHD-0420DZ-FL-YBW
Manufacturer Part Number
NHD-0420DZ-FL-YBW
Description
LCD MOD CHAR 4X20 Y/G TRANSFL
Manufacturer
Newhaven Display
Datasheet
1.NHD-0420DZ-FL-YBW.pdf
(9 pages)
Specifications of NHD-0420DZ-FL-YBW
Display Type
STN - Super-Twisted Nematic
Display Mode
Transflective
Number Of Digits/alpha
80
Outline L X W X H
98.00mm x 60.00mm x 13.50mm
Viewing Area
76.00mm L x 25.20mm W
Backlight
LED - Yellow/Green
Display Format
20 x 4
Character Size
4.75mm H x 2.95mm W
Character Format
5 x 8 Dots
Voltage - Supply
3.3V
Dot Size
0.55mm W x 0.55mm H
Operating Temperature
-20°C ~ 70°C
Character Count X Line
20 x 4
Module Size (w X H X T)
98 mm x 60 mm x 14 mm
Fluid Type
STN
Background Color
Yellow / Green
Voltage Rating
5 V
Operating Temperature Range
- 20 C to + 70 C
Backlight Type
LED Yellow / Green
Interface
Parallel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
4-bit Initialization:
/**********************************************************/
void command(char i)
{
}
/**********************************************************/
void write(char i)
{
}
/**********************************************************/
void Nybble()
{
}
/**********************************************************/
void init()
{
}
/**********************************************************/
P1 = i;
D_I =0;
R_W =0;
Nybble();
i = i<<4;
P1 = i;
Nybble();
P1 = i;
D_I =1;
R_W =0;
Nybble();
i = i<<4;
P1 = i;
Nybble();
E = 1;
Delay(1);
E = 0;
P1 = 0;
P3 = 0;
Delay(100);
P1 = 0x30;
Delay(30);
Nybble();
Delay(10);
Nybble();
Delay(10);
Nybble();
Delay(10);
P1= 0x20;
Nybble();
command(0x28);
command(0x10);
command(0x0F);
command(0x06);
//put data on output Port
//D/I=LOW : send instruction
//R/W=LOW : Write
//Send lower 4 bits
//Shift over by 4 bits
//put data on output Port
//Send upper 4 bits
//put data on output Port
//D/I=HIGH : send data
//R/W=LOW : Write
//Clock lower 4 bits
//Shift over by 4 bits
//put data on output Port
//Clock upper 4 bits
//enable pulse width
//Clock enable: falling edge
//Wait >15 msec after power is applied
//put 0x30 on the output port
//must wait 5ms, busy flag not available
//command 0x30 = Wake up
//must wait 160us, busy flag not available
//command 0x30 = Wake up #2
//must wait 160us, busy flag not available
//command 0x30 = Wake up #3
//can check busy flag now instead of delay
//put 0x20 on the output port
//Function set: 4-bit interface
//Function set: 4-bit/2-line
//Set cursor
//Display ON; Blinking cursor
//Entry Mode set
[8]
>= 300ns