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DISPLAY Elektronik GmbH
LCD MODULE
DEM 08171 SYH-LY
Product
ecification Version: 2.1.2
09/Jun/2009
GENERAL SPECIFICATION
MODULE NO. :
DEM 08171 SYH-LY
CUSTOMER P/N
VERSION NO. CHANGE DESCRIPTION
0 ORIGINAL VERSION 19.11.2000
1 PCB SIZE CHANGED 22.03.2001
2 PCB CHANGED 14.04.2003
2.1.0 CHANGE IC 22.11.2007
ADD BACKLIGHT
2.1.1
PARAMETER
UPDATE BACKLIGHT
2.1.2
PARAMETER
DATE
05.05.2009
09.06.2009
PREPARED BY: XYP DATE: 09.06.2009
APPROVED BY: MH DATE: 09.06.2009
DEM 08171 SYH-LY 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. BACKLIGHT ELECTRICAL/OPTICAL CHARACTERISTICS .....................................................................................7
8. MAXIMUM ABSOLUTE LIMIT...........................................................................................................................................7
9. ELECTRICAL CHARACTERISTICS.................................................................................................................................. 8
10. INSTRUCTION TABLE......................................................................................................................................................10
11. INITIALIZING BY INSTRUCTION .................................................................................................................................11
12. STANDARD CHARACTER PATTERN............................................................................................................................13
13. LCD MODULES HANDLING PRECAUTIONS..............................................................................................................14
14. OTHERS...............................................................................................................................................................................14
Version: 2.1.2 PAGE:1
DEM 08171 SYH-LY Product Specification
1. FUNCTIONS & FEATURES
MODULE NAME LCD Type
DEM 08171 SYH-LY STN Yellow Green Transflective Positive Mode
z Viewing Direction : 6 O’clock
z Driving Scheme : 1/8 Duty Cycle, 1/4 Bias
z Power Supply Voltage : 5.0 Volt (typ.)
z Backlight : LED, Yellow Green, Lightbox
z VLCD (VDD-V0) : 4.5 Volt (typ.)
z Display contents : 8 x 1 Characters (5 x 8 dots )
z Internal Memory : CGROM (10,080 bits )
: CGRAM (64 x 8 bits)
: DDRAM (80 x 8 bits for Digits)
z CGROM : CGROM of the ST7066U-0A-B
z Interface : Easy Interface with a 4-bit or 8-bit MPU
z Operating Temperature : -20°C to +70°C
z Storage Temperature : -30°C to +80°C
2. MECHANICAL SPECIFICATIONS
z Module Size : 60.00 x 33.00 x 12.00 mm
z Character Pitch : 5.20 x 7.93 mm
z Character Size : 4.43 x 7.93 mm
z Character Font : 5 x 8 dots
z Dot Size : 0.83 x 0.93 mm
z Dot Pitch : 0.90 x 1.00 mm
Version: 2.1.2 PAGE:2
DEM 08171 SYH-LY Product Specification
3. EXTERNAL DIMENSIONS
Version: 2.1.2 PAGE:3
DEM 08171 SYH-LY Product Specification
4. BLOCK DIAGRAM
DB0~DB7
E
R/W
RS
V0
VDD
VSS
A
K
5. PIN ASSIGNMENT
Pin No. Symbol
1 VSS Ground
2 VDD Power supply
3 V0 Power Supply for LCD
4 RS Select Display Data ("H") or Instructions ("L")
5 R/W Read or Write Select Signal
6 E Read/Write Enable Signal
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 LED-(K) Place also refer to 6 PCB Drawing and description
16 LED+(A) Place also refer to 6 PCB Drawing and description (+5V)
LCD
Controller
LSI
ST7066U-0A-B
BACKLIGHT
COM1~COM8
Display Data Signal
LCD PANEL
1 Line X 8 Characters
SEG1~SEG40
Function
Version: 2.1.2 PAGE:4
DEM 08171 SYH-LY Product Specification
6. PCB DRAWING AND DESCRIPTION
6-1.DESCRIPTION:
6-1-1.The polarity of the pin 15 and the pin 16:
J3,J5 J2, J4
Each open Each closed Anode Cathode
Each closed Each open Cathode Anode
Note: In application module, J2=J4= open and J3=J5=closed
6-1-2. The J1 is metal-bezel GND to module GND and J7 is mounting holes GND to module GND.
Note: In application module, J1=closed, J7=closed.
6-1-3.The LED resistor should be bridged when J6 is closed
Note: In application module, J6=open
6-1-4.The R6 and the R7 is the LED resistor.
Note: R6=open, R7=12 Ohm
LED Polarity
15 Pin 16 Pin
Version: 2.1.2 PAGE:5
DEM 08171 SYH-LY Product Specification
6-2.Example application
6-2-1. The LED resistor should be bridged as following.
6-2-2. The 15 pin 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.
6-2-4. The metal-bezel is on ground as following.
J4
J6
J5
J5
R7
R6
J2
J3
J2
J3
J1
Version: 2.1.2 PAGE:6
DEM 08171 SYH-LY Product Specification
7. BACKLIGHT ELECTRICAL/OPTICAL CHARACTERISTICS
90
If= mA
90
If= mA
90
If= mA
120
3. 8
90
0. 342
10
0. 2
572
35
135
8. MAXIMUM ABSOLUTE LIMIT
Characteristics Symbol Value
Power Supply Voltage VDD -0.3 to +7.0
LCD Driver Voltage VLCD VDD-10.0 to VDD+0.3
Input Voltage VIN -0.3 to VCC+0.3
Operating Temperature TOPR
Storage Temperature TSTO
-20~+70 °C
-30~+80 °C
Version: 2.1.2 PAGE:7
Unit
V
V
V
DEM 08171 SYH-LY Product Specification
9. ELECTRICAL CHARACTERISTICS
9-1 DC Characteristics (VDD=5V, Ta=-25°C)
Symbol Characteristics Test Condition Min. Typ. Max. Unit
VCC Operating Voltage - 4.5 5 5.5 V
VLCD LCD Voltage VDD-V0 3.0 4.5 10.0 V
f
= 270KHz
ICC Power Supply Current
9-2 AC Characteristics (V
=5V, Ta=-25°C)
DD
Symbol Characteristics Test Condition Min. Typ. Max. Unit
Internal Clock Operation
f
OSC Frequency R = 91KΩ 190 270 350 KHz
OSC
External Clock Operation
OSC
VCC=5.0V
- 0.2 0.5 mA
fEX External Frequency - 125 270 410 KHz
Duty Cycle - 45 50 55 %
TR,TF Rise/Fall Time - - - 0.2 µs
Write Mode (Writing data from MPU to ST7066U)
TC Enable Cycle Time Pin E 1200 - - ns
TPW Enable Pulse Width Pin E 140 - - ns
TR,TF Enable Rise/Fall Time Pin E - - 25 ns
TAS Address Setup Time Pins: RS,RW,E 0 - - ns
TAH Address Hold Time Pins: RS,RW,E 10 - - ns
TDSW Data Setup Time Pins: DB0 - DB7 40 - - ns
TH Data Hold Time Pins: DB0 - DB7 10 - - ns
Read Mode (Reading Data from ST7066U to MPU)
TC Enable Cycle Time Pin E 1200 - - ns
TPW Enable Pulse Width Pin E 140 - - ns
TR,TF Enable Rise/Fall Time Pin E - - 25 ns
TAS Address Setup Time Pins: RS,RW,E 0 - - ns
TAH Address Hold Time Pins: RS,RW,E 10 - - ns
TDDR Data Setup Time Pins: DB0 - DB7 - - 100 ns
TH Data Hold Time Pins: DB0 - DB7 10 - - ns
Version: 2.1.2 PAGE:8
DEM 08171 SYH-LY Product Specification
Timing Characteristics
Version: 2.1.2 PAGE:9
DEM 08171 SYH-LY Product Specification
10. INSTRUCTION TABLE
Instruction Code
Instruction
Clear
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 0 0 1
Display
Return
Home
0 0 0 0 0 0 0 0 1 x
Entry Mode
0 0 0 0 0 0 0 1 I/D S
Set
Display
0 0 0 0 0 0 1 D C B
ON/OFF
Cursor or
Display
0 0 0 0 0 1 S/C R/L x x
Shift
Function Set
0 0 0 0 1 DL N F x x
Set
CGRAM
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0
address
Set
DDRAM
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
Description
Description Time
(270KHz)
Write "20H" to
DDRAM. and set
DDRAM address to
"00H" from AC
Set DDRAM
address to "00H"
from AC and return
cursor to its original
position if shifted.
The contents of
DDRAM are not
changed.
Sets cursor move
direction and
specifies display
shift. These
operations are
performed during
data write and read.
D=1:entire display
on C=1:cursor on
B=1:cursor position
on
Set cursor moving
and display shift
control bit, and the
direction, without
changing DDRAM
data.
DL:interface data is
8/4 bits N:number of
line is 2/1 Affront
size is 5x11/5x8
Set CGRAM
address in address
counter
Set DDRAM
address in address
counter
1.52 ms
1.52 ms
37 us
37 us
37 us
37 us
37 us
37 us
address
Read Busy
flag and
0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
address
Write data
1 0 D7 D6 D5 D4 D3 D2 D1 D0
to RAM
Read data
1 1 D7 D6 D5 D4 D3 D2 D1 D0
from RAM
Note:
Be sure the ST7066U is not in the busy state (BF = 0) before sending an instruction from the MPU to the ST7066U. If an
instruction is sent without checking the busy flag, the time between the first instruction and next instruction will take much
longer than the instruction time itself. Refer to Instruction Table for the list of each instruction execution time.
Whether during
internal operation or
not can be known by
reading BF. The
contents of address
counter can also
be read.
Write data into
internal RAM
(DDRAM/CGRAM)
Read data from
internal RAM
(DDRAM/CGRAM)
0 us
37 us
37 us
Version: 2.1.2 PAGE:10
DEM 08171 SYH-LY Product Specification
11. Initializing by Instruction
Version: 2.1.2 PAGE:11
DEM 08171 SYH-LY Product Specification
Version: 2.1.2 PAGE:12
DEM 08171 SYH-LY Product Specification
12. STANDARD CHARACTER PATTERN
ST7066-0A
Version: 2.1.2 PAGE:13
DEM 08171 SYH-LY 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 come 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 polarize
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℃).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: 2.1.2 PAGE:14
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