概述
数据手册NHD-0208AZ-RN-GBW 概述
Character Liquid Crystal Display Module 字符液晶显示模块
NHD-0208AZ-RN-GBW 数据手册
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Character Liquid Crystal Display Module
NHD‐
0208‐
AZ‐
R‐
Newhaven Display
2 lines x 8 characters
Model
Reflective
No Backlight
N‐
G‐
STN‐ Gray
B‐
6:00 view
W‐
Wide Temperature (‐20°C~+70°C)
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
nhtech@newhavendisplay.com nhsales@newhavendisplay.com
[1]
Document Revision History
Revision
Date
Description
Initial Release
User Guide Reformat
Changed by
0
1
2
3
11/14/2008
10/6/2009
10/19/2009
12/29/2009
‐
BE
BE
BE
Block Diagram, Mechanical Drawing Revision
Optical revised
Functions and Features
•
•
•
•
•
2 lines x 8 characters
Built‐in controller (SPLC780D or equivalent)
+5.0V power supply
1/16 duty, 1/5 bias
RoHS compliant
[2]
Mechanical Drawing
[3]
Pin Description and Wiring Diagram
Pin No. Symbol
External
Function Description
Connection
Power Supply
Power Supply
1
2
VSS
VDD
Ground
Supply Voltage for logic (+5.0V)
3
V0
Adj Power Supply Power supply for contrast (approx. 0.5V)
4
5
6
7‐10
RS
R/W
E
MPU
MPU
MPU
MPU
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.
DB0 – DB3
11‐14
15
16
DB4 – DB7
MPU
Four high order bi‐directional three‐state data bus lines.
No Connect
No Connect
NC
NC
Recommended LCD connector: 2.54mm pitch pins
Backlight connector: ‐‐‐ Mates with: ‐‐‐
[4]
Electrical Characteristics
Item
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Symbol
Top
Tst
VDD
IDD
Condition
Absolute Max
Absolute Max
Min.
‐20
‐30
2.7
‐
Typ.
‐
‐
5.0
1.0
4.5
‐
‐
‐
‐
Max.
+70
+80
5.5
1.5
‐
VDD
0.6
‐
Unit
⁰C
⁰C
V
mA
V
V
V
V
V
Supply Current
Ta=25°C, VDD=5.0V
Ta=25°C
Supply for LCD (contrast)
“H” Level input
VDD‐V0
Vih
‐
2.2
0
2.4
‐
“L” Level input
“H” Level output
“L” Level output
Vil
Voh
Vol
0.4
Backlight Supply Voltage
Backlight Supply Current
Vled
Iled
‐
‐
‐
‐
‐
‐
‐
‐
V
mA
Optical Characteristics
Item
Symbol
Condition
Cr ≥ 2
Cr ≥ 2
Cr ≥ 2
Cr ≥ 2
Min.
Typ.
25
70
30
30
2
120
120
Max.
‐
‐
‐
‐
Unit
⁰
⁰
⁰
⁰
‐
ms
ms
Viewing Angle ‐ Vertical (top)
Viewing Angle ‐ Vertical (bottom)
Viewing Angle ‐ Horizontal (left)
Viewing Angle ‐ Horizontal (right)
Contrast Ratio
AV
AV
AH
AH
Cr
‐
‐
‐
‐
‐
‐
‐
‐
Response Time (rise)
Response Time (fall)
Tr
Tf
‐
‐
150
150
Controller Information
Built‐in SPLC780D. Download specification at http://www.newhavendisplay.com/app_notes/SPLC780D.pdf
[5]
Table of Commands
[6]
Timing Characteristics
[7]
[8]
Built‐in Font Table
[9]
Example Initialization Program
8-bit Initialization:
/**********************************************************/
void command(char i)
{
P1 = i;
D_I =0;
R_W =0;
E = 1;
Delay(1);
E = 0;
//put data on output Port
//D/I=LOW : send instruction
//R/W=LOW : Write
//enable pulse width >= 300ns
//Clock enable: falling edge
}
/**********************************************************/
void write(char i)
{
P1 = i;
D_I =1;
R_W =0;
E = 1;
Delay(1);
E = 0;
//put data on output Port
//D/I=LOW : send data
//R/W=LOW : Write
//enable pulse width >= 300ns
//Clock enable: falling edge
}
/**********************************************************/
void init()
{
E = 0;
Delay(100);
command(0x30);
//Wait >15 msec after power is applied
//command 0x30 = Wake up
Delay(30);
command(0x30);
Delay(10);
command(0x30);
Delay(10);
command(0x38);
command(0x10);
command(0x0c);
command(0x06);
//must wait 5ms, busy flag not available
//command 0x30 = Wake up #2
//must wait 160us, busy flag not available
//command 0x30 = Wake up #3
//must wait 160us, busy flag not available
//Function set: 8-bit/2-line
//Set cursor
//Display ON; Cursor ON
//Entry mode set
}
/**********************************************************/
[10]
4-bit Initialization:
/**********************************************************/
void command(char i)
{
P1 = i;
D_I =0;
R_W =0;
//put data on output Port
//D/I=LOW : send instruction
//R/W=LOW : Write
Nybble();
i = i<<4;
P1 = i;
//Send lower 4 bits
//Shift over by 4 bits
//put data on output Port
//Send upper 4 bits
Nybble();
}
/**********************************************************/
void write(char i)
{
P1 = i;
D_I =1;
R_W =0;
//put data on output Port
//D/I=HIGH : send data
//R/W=LOW : Write
Nybble();
i = i<<4;
P1 = i;
//Clock lower 4 bits
//Shift over by 4 bits
//put data on output Port
//Clock upper 4 bits
Nybble();
}
/**********************************************************/
void Nybble()
{
E = 1;
Delay(1);
E = 0;
//enable pulse width >= 300ns
//Clock enable: falling edge
}
/**********************************************************/
void init()
{
P1 = 0;
P3 = 0;
Delay(100);
P1 = 0x30;
Delay(30);
Nybble();
//Wait >15 msec after power is applied
//put 0x30 on the output port
//must wait 5ms, busy flag not available
//command 0x30 = Wake up
Delay(10);
Nybble();
Delay(10);
Nybble();
//must wait 160us, busy flag not available
//command 0x30 = Wake up #2
//must wait 160us, busy flag not available
//command 0x30 = Wake up #3
Delay(10);
P1= 0x20;
Nybble();
command(0x28);
command(0x10);
command(0x0F);
command(0x06);
//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
}
[11]
/**********************************************************/
Quality Information
Test Item
Content of Test
Endurance test applying the high
storage temperature for a long time.
Test Condition
+80⁰C , 48hrs
Note
2
High Temperature storage
Low Temperature storage Endurance test applying the low storage
temperature for a long time.
‐30⁰C , 48hrs
+70⁰C 48hrs
1,2
2
High Temperature
Operation
Endurance test applying the electric stress
(voltage & current) and the high thermal
stress for a long time.
Low Temperature
Operation
Endurance test applying the electric stress
(voltage & current) and the low thermal
stress for a long time.
Endurance test applying the electric stress
(voltage & current) and the high thermal
with high humidity stress for a long time.
Endurance test applying the electric stress
(voltage & current) during a cycle of low
and high thermal stress.
‐20⁰C , 48hrs
1,2
1,2
High Temperature /
Humidity Operation
+40⁰C , 90% RH , 48hrs
Thermal Shock resistance
Vibration test
0⁰C,30min ‐> 25⁰C,5min ‐>
50⁰C,30min = 1 cycle
10 cycles
10‐55Hz , 15mm amplitude.
60 sec in each of 3 directions
X,Y,Z
Endurance test applying vibration to
simulate transportation and use.
3
For 15 minutes
Static electricity test
Endurance test applying electric static
discharge.
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
[12]
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