NHD-0420DZ-FL-YBW-3V 数据手册
NHD‐0420DZ‐FL‐YBW‐3V3
Character Liquid Crystal Display Module
NHD‐
0420‐
DZ‐
F‐
L‐
Y‐
B‐
W‐
3V3‐
Newhaven Display
4 lines x 20 characters
Model
Transflective
Yellow/Green LED Backlight
STN‐ Yellow/Green
6:00 view
Wide Temp. (‐20°C~+70°C)
3.3 Vdd, 3.0 Volt backlight
RoHS Compliant
Newhaven Display International, Inc.
2511 Technology Drive, Suite 101
Elgin IL, 60124
Ph: 847‐844‐8795
Fax: 847‐844‐8796
www.newhavendisplay.com
nhsales@newhavendisplay.com
nhtech@newhavendisplay.com
[1]
Document Revision History
Revision
0
1
2
3
4
5
Date
10/21/2008
1/26/2010
2/25/2010
3/19/2010
1/6/2011
5/6/2011
Description
Initial Release
User Guide Reformat
Updated Mechanical Drawing
Mechanical drawing/pin description updated
Updated Controller Information
Electrical characteristics updated
Functions and Features
•
•
•
•
•
4 lines x 20 characters
Built‐in controllers (ST7066U)
+3.3V Power Supply
1/16 duty, 1/5 bias
RoHS compliant
[2]
Changed by
‐
MC
MC
BE
JT
AK
Mechanical Drawing
14
9.3 0.5
Pin connections
- 2.5
1
16
Pin NO Symbol
1
VSS
2
VDD
3
V0
4
RS
5
R/W
6
E
7
DB0
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
LED+
16
LED-
NEWHAVEN DISPLAY
NHD-0420DZ-FL-YBW-3V3
Pin Description and Wiring Diagram
Pin No. Symbol
1
2
3
4
5
6
7‐10
Vss
VDD
V0
RS
R/W
E
DB0‐DB3
External
Connection
Power Supply
Power Supply
Power Supply
MPU
MPU
MPU
MPU
11‐14
15
16
DB4‐DB7
LED+
LED‐
MPU
Power Supply
Power Supply
Function Description
Ground
Supply voltage for logic (+3.3V)
Power supply for contrast (approx. 0.3V)
Register select signal. RS=0: Command, RS=1: Data
Read/Write select signal, R/W=1: Read R/W:=0: Write
Operation enable signal. Falling edge triggered.
Four low order bi‐directional three‐state data bus lines. These four
are not used during 4‐bit operation.
Four high order bi‐directional three‐state data bus lines.
Power supply for LED Backlight (+3.0V)
Ground for backlight
Recommended LCD connector: 2.54mm pitch pins
Backlight connector: ‐‐‐ Mates with: ‐‐‐
[4]
Electrical Characteristics
Item
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Supply Current
Supply for LCD (contrast)
“H” Level input
“L” Level input
“H” Level output
“L” Level output
Backlight Supply Voltage
Backlight Supply Current
Symbol
Top
Tst
VDD
IDD
VDD‐V0
Vih
Vil
Voh
Vol
Vled
Iled
Condition
Absolute Max
Absolute Max
Ta=25°C, VDD=3.3V
Ta=25°C
Min.
‐20
‐30
3.0
‐
2.8
0.7 VDD
0
0.75 VDD
‐
Typ.
‐
‐
3.3
2
3.0
‐
‐
‐
‐
‐
Vled=3.0V
‐
‐
3.0
240
Max.
+70
+80
3.5
3.0
3.3
VDD
0.6
‐
0.2 VDD
3.3
‐
Unit
⁰C
⁰C
V
mA
V
V
V
V
V
V
mA
Optical Characteristics
Item
Viewing Angle – Vertical (top)
Viewing Angle – Vertical (bottom)
Viewing Angle – Horizontal (left)
Viewing Angle – Horizontal (right)
Contrast Ratio
Response Time (rise)
Response Time (fall)
Symbol
AV
AV
AH
AH
Cr
Tr
Tf
Condition
Cr ≥ 2
Cr ≥ 2
Cr ≥ 2
Cr ≥ 2
‐
‐
Min.
‐
‐
‐
‐
‐
‐
‐
Typ.
25
70
30
30
2
120
120
Max.
‐
‐
‐
‐
‐
150
150
Unit
⁰
⁰
⁰
⁰
‐
ms
ms
Controller Information
Built‐in ST7066U. Download specification at http://www.newhavendisplay.com/app_notes/ST7066U.pdf
Display character address code
[5]
Command Table
[6]
Built‐in Font Table
[7]
Example Initialization Program
8-bit Initialization:
/**********************************************************/
void command(char i)
{
P1 = i;
//put data on output Port
D_I =0;
//D/I=LOW : send instruction
R_W =0;
//R/W=LOW : Write
E = 1;
Delay(1);
//enable pulse width >= 300ns
E = 0;
//Clock enable: falling edge
}
/**********************************************************/
void write(char i)
{
P1 = i;
//put data on output Port
D_I =1;
//D/I=LOW : send data
R_W =0;
//R/W=LOW : Write
E = 1;
Delay(1);
//enable pulse width >= 300ns
E = 0;
//Clock enable: falling edge
}
/**********************************************************/
void init()
{
E = 0;
Delay(100);
//Wait >15 msec after power is applied
command(0x30);
//command 0x30 = Wake up
Delay(30);
//must wait 5ms, busy flag not available
command(0x30);
//command 0x30 = Wake up #2
Delay(10);
//must wait 160us, busy flag not available
command(0x30);
//command 0x30 = Wake up #3
Delay(10);
//must wait 160us, busy flag not available
command(0x38);
//Function set: 8-bit/2-line
command(0x10);
//Set cursor
command(0x0c);
//Display ON; Cursor ON
command(0x06);
//Entry mode set
}
/**********************************************************/
[8]
4-bit Initialization:
/**********************************************************/
void command(char i)
{
P1 = i;
//put data on output Port
D_I =0;
//D/I=LOW : send instruction
R_W =0;
//R/W=LOW : Write
Nybble();
//Send lower 4 bits
i = i
50⁰C,30min = 1 cycle
10 cycles
10‐55Hz , 15mm amplitude.
60 sec in each of 3 directions
X,Y,Z
For 15 minutes
VS=800V, RS=1.5kΩ, CS=100pF
One time
Note 1: No condensation to be observed.
Note 2: Conducted after 4 hours of storage at 25⁰C, 0%RH.
Note 3: Test performed on product itself, not inside a container.
Precautions for using LCDs/LCMs
See Precautions at www.newhavendisplay.com/specs/precautions.pdf
Warranty Information and Terms & Conditions
http://www.newhavendisplay.com/index.php?main_page=terms
[10]
Note
+80⁰C , 48hrs
3
NHD-0420DZ-FL-YBW-3V 价格&库存
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