DISPLAY Elektronik GmbH
LCD MODULE
DEM 16216 SGH
Product Specification Version : 2
21.04.2009
GENERAL SPECIFICATION
MODULE NO. :
DEM 16216 SGH
VERSION NO. CHANGE DESCRIPTION DATE
0 ORIGINAL VERSION 21.03.2001
1.1.0 CHANGE IC 07.12.2007
2 UPDATE PCB DESCRIPTION 21.04.2009
PREPARED BY: ZWY DATE: 21.04.2009
APPROVED BY: MH DATE: 21.04.2009
DEM 16216 SGH Product Specification
CONTENTS
1. FUNCTIONS & FEATURES..................................................................................................................................................2
2. MECHANICAL SPECIFICATIONS .....................................................................................................................................2
3. EXTERNAL DIMENSIONS...................................................................................................................................................3
4. BLOCK DIAGRAM.................................................................................................................................................................4
5. PIN ASSIGNMENT .................................................................................................................................................................4
6. PCB DRAWING AND DESCRIPTION .................................................................................................................................5
7. MAXIMUM ABSOLUTE POWER RATINGS(TA=25°C)...................................................................................................7
8. ELECTRICAL CHARACTERISTICS.................................................................................................................................. 7
9. DISPLAY DATA RAM (DDRAM)........................................................................................................................................ 10
10. INSTRUCTION DESCRIPTION.......................................................................................................................................11
11. INITIALIZING BY INSTRUCTION .................................................................................................................................12
12. CHARACTER GENERATOR ROM ...............................................................................................................................14
13. LCD MODULES HANDLING PRECAUTIONS..............................................................................................................15
14. OTHERS...............................................................................................................................................................................15
VERSION: 2 PAGE: 1
DEM 16216 SGH Product Specification
1. FUNCTIONS & FEATURES
MODULE LCD TYPE
DEM 16216 SGH STN Grey Reflective Positive Mode
z Viewing Direction : 6 O’clock
z Driving Scheme : 1/16 Duty Cycle, 1/5 Bias
z Power Supply Voltage : 5.0V (typ.)
z VLCD Adjustable For Best Contrast : 4.5V (typ.)
z Display contents : 16 x 2Characters (5 x 8 dots, Format: 192 Kinds)
z Operating Temperature : - 20°C to + 70°C
z Storage Temperature : - 25°C to + 75°C
z Internal Memory : CGROM (8,320 bits)
: CGRAM (64 x 8 bits)
: DDRAM (80 x 8 bits for Digits)
z Interface : Easy Interface with a 4-bit or 8-bit MPU
2. MECHANICAL SPECIFICATIONS
z Module Size : 80.00 x 36.00 x 9.50 mm
z Character Pitch : 3.55 x 5.95 mm
z Character Size : 2.95 x 5.55 mm
z Character Font : 5 x 8 dots
z Dot Size : 0.55 x 0.65 mm
z Dot Pitch : 0.60 x 0.70 mm
VERSION: 2 PAGE: 2
DEM 16216 SGH Product Specification
3. EXTERNAL DIMENSIONS
VERSION: 2 PAGE: 3
DEM 16216 SGH Product Specification
4. BLOCK DIAGRAM
SEG0~40
LCD PANEL
VSS
VDD
V0
RS
R/W
E
DB0~DB7
COM1~1
ST7066U-0A
2LineX16Characters
SEG41~80
5. PIN ASSIGNMENT
Pin No. Symbol
1 VSS Ground terminal of module
2 VDD Supply terminal of module 5.0 V
3 V0 Power Supply for Liquid crystal Drive
4 RS
5 R/W
6 E
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 NC
16 NC
ST7065C
Function
Register select
RS = 0…Instruction register
RS = 1…Data register
Read /Write
R/W = 1…Read
R/W = 0…Write
Start enable signal to read or write the data
Bi-directional data bus, data transfer is performed once, thru DB0 to
DB7, in the case of interface data. Length is 8-bits; and twice, thru DB4
to DB7 in the case of interface data length is 4-bits. Upper four bits first
then lower four bits.
No connect
VERSION: 2 PAGE: 4
DEM 16216 SGH Product Specification
6. PCB DRAWING AND DESCRIPTION
DESCRIPTION:
6-1-1.The polarity of the pin 15 and the pin 16:
symbol
J2,J4 Each solder-bridge Each open Each closed A node Cathode
J3,J5 Each solder-bridge Each closed Each open Cathode Anode
Note: In application module, J2=J3=J4=J5=open .
6-1-2. The J1 is metal-bezel GND to module GND and J6 is mounting holes GND to module GND.
Note: In application module, J1= J6=0 ohm.
6-1-3.The LED resistor should be bridged when the R8 or R9 or R10 is closed.
Note: In application module, R8=R9=R10=open
6-1-4.The R7 are the LED resistor.
Note: R7 =open.
symbol
state
J3,J5 J2, J4
LED Polarity
15 Pin 16 Pin
VERSION: 2 PAGE: 5
DEM 16216 SGH Product Specification
6.2 Example application
6-2-1. The LED resistor should be bridged as following.
6-2-2. The 15pin is the anode and the 16 pin is the cathode as following.
J4
6-2-3.The 15 pin is the cathode and the 16 pin is the anode as following.
J4
6-2-4. The metal-bezel is on ground as following.
R7
R8
R9
R10
J5
J5
J2
J3
J2
J3
J1
6-2-5. The mounting hole is on ground as following.
J6
VERSION: 2 PAGE: 6
DEM 16216 SGH Product Specification
7. MAXIMUM ABSOLUTE POWER RATINGS (Ta=25°C)
Item Symbol Standard value
Power supply voltage(1) VDD -0.3~+7.0
Power supply voltage(2) V
Input voltage
V
LCD
-10.0~VDD+0.3
DD
VIN -0.3~VDD+0.3
Operating temperature Topr -20~+70
Storage temperature
Tstg
-25~+75
8. ELECTRICAL CHARACTERISTICS
8-1 DC Characteristics (VDD=5V,Ta=25°C)
Standard Value
Item Symbol
MIN TYP MAX
Operating Voltage V
I
DD
DD1
4.7 5.0 5.3
---- TBD 1.0
Supply Current
I
DD2
LCD Driving Voltage VLCD
---- TBD 0.6
4.2
Condition
Ceramic oscillation
fosc=250kHz
Resistor oscillation
external clock operation
fosc=270kHz
4.5 4.8 VDD-V5 V
Test
-------
Unit
V
V
V
°C
°C
Unit
V
mA
VERSION: 2 PAGE: 7
DEM 16216 SGH Product Specification
8-2 AC Characteristics
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DEM 16216 SGH Product Specification
VERSION: 2 PAGE: 9
DEM 16216 SGH Product Specification
9. DISPLAY DATA RAM (DDRAM)
VERSION: 2 PAGE: 10
DEM 16216 SGH Product Specification
10. INSTRUCTION TABLE
VERSION: 2 PAGE: 11
DEM 16216 SGH Product Specification
11. INITIALIZING BY INSTRUCTION
11-1. 8-bit interface mode (fosc=270kHz)
VERSION: 2 PAGE: 12
DEM 16216 SGH Product Specification
11-2. 4-bit interface mode
VERSION: 2 PAGE: 13
DEM 16216 SGH Product Specification
12. CHARACTER GENERATOR ROM (ST7066-0A)
VERSION: 2 PAGE: 14
DEM 16216 SGH Product Specification
13. LCD MODULES HANDLING PRECAUTIONS
Please remove the protection foil of polarizer before using.
The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a
high place, etc.
If the display panel is damaged and the liquid crystal substance inside it leaks out, do not get any in
your mouth. If the substance comes into contact with your skin or clothes promptly wash it off using
soap and water.
Do not apply excessive force to the display surface or the adjoining areas since this may cause the
color tone to vary.
The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle
this polarizer carefully.
To prevent destruction of the elements by static electricity, be careful to maintain an optimum work
environment.
-Be sure to ground the body when handling the LCD module.
-Tools required for assembly, such as soldering irons, must be properly grounded.
-To reduce the amount of static electricity generated, do not conduct assembly and other work under
dry conditions.
-The LCD module is coated with a film to protect the display surface. Exercise care when peeling off
this protective film since static electricity may be generated.
Storage precautions
When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps.
Keep the modules in bags designed to prevent static electricity charging under low temperature /
normal humidity conditions (avoid high temperature / high humidity and low temperatures below
0°C).Whenever possible, the LCD modules should be stored in the same conditions in which they
were shipped from our company.
14. OTHERS
Liquid crystals solidify at low temperature (below the storage temperature range) leading to defective
orientation of liquid crystal or the generation of air bubbles (black or white). Air bubbles may also be
generated if the module is subjected to a strong shock at a low temperature.
If the LCD modules have been operating for a long time showing the same display, patterns may
remain on the screen as ghost images and a slight contrast irregularity may also appear. Abnormal
operating status can be resumed to be normal condition by suspending use for some time. It should be
noted that this phenomena does not adversely affect performance reliability.
To minimize the performance degradation of the LCD modules resulting from caused by static
electricity, etc. exercise care to avoid holding the following sections when handling the modules:
- Exposed area of the printed circuit board
- Terminal electrode sections
VERSION：2 PAGE:15
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