DISPLAY
Elektronik GmbH
LCD MODULE
Version:
5.1.
4
DEM 08172 SYH-PY
Product Specification
21.11.2013
GENERAL SPECIFICATION
MODULE NO. :
DEM 08172 SYH-PY
CUSTOMER P/N:
Version No. Change Description Date
0 ORIGINAL VERSION 08.04.2004
1
2
3 ADD VERSION 21.12.2004
4 ADD VERSION 13.05.2005
5 CHANGED PCB DRAWING &
5.1.0 ADD VERSION 21.11.2007
5.1.1 UPDATE BACKLIGHT DRAWING 14.01.2009
5.1.2 UPDATE BACKLIGHT PARAMETER 08.04.2009
5.1.3 ADD VERSION 13.11.2013
5.1.4 CHANGE BACKLIGHT 21.11.2013
CHANGED PCB & BACKLIGHT
& MODULE DRAWING
CHANGED PCB DESCRIPTION &
MODULE DRAWING & CHARACTER
PATTERN
DESCRIPTION
16.06.2004
28.08.2004
25.05.2005
PREPARED BY: LX DATE: 21.11.2013
APPROVED BY: MH DATE: 21.11.2013
DEM 08172 SYH-PY 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 .......................................................................................................... 8
9. ELECTRICAL CHARACTERISTICS ................................................................................................. 9
10. INSTRUCTION TABLE ..................................................................................................................... 11
11. INTIALIZING BY INSTRUCTION .................................................................................................. 12
12. STANDARD CHARACTER PATTERN ........................................................................................... 14
13. LCD MODULES HANDLING PRECAUTIONS ............................................................................. 15
14. OTHERS ............................................................................................................................................... 15
Version: 5.1.4 PAGE: 1
DEM 08172 SYH-PY Product Specification
1. FUNCTIONS & FEATURES
MODULE NAME LCD Type
DEM 08172 SYH-PY STN Yellow-Green Transflective Positive Mode
l Viewing Direction : 6 O’clock
l Driving Scheme : 1/8 Duty Cycle, 1/4 Bias
l Power Supply Voltage : 5.0 Volt (typ.)
l V
l Display Contents : 8 x 1Characters
l Internal Memory : CGROM (13,200 bits )
: CGRAM (64 x 8 bits)
: DDRAM (80 x 8 bits for Digits)
l CGROM : CGROM of the ST7066U-0A-B
l Interface : Easy Interface with a 4-bit or 8-bit MPU
(VDD-V5) : 4.5 Volt (typ.)
LCD
2. MECHANICAL SPECIFICATIONS
l Module Size : 84.00 x 44.00 x 10.50 mm
l Character Pitch : 7.15 x 11.45 mm
l Character Size : 6.45 x 10.75 mm
l Character Font : 5 x 8 dots
l Dot Size : 1.25 x 1.30 mm
l Dot Pitch : 1.30 x 1.35 mm
l Dot Gap : 0.05mm
Version: 5.1.4 PAGE: 2
DEM 08172 SYH-PY Product Specification
3. EXTERNAL DIMENSIONS
Version: 5.1.4 PAGE: 3
DEM 08172 SYH-PY Product Specification
4. BLOCK DIAGRAM
DB0~DB7
E
R/W
RS
VLCD
VDD
VSS
A
K
5. PIN ASSIGNMENT
LCD
Controller
LSI
ST7066U-0A-B
BACKLIGHT
COM1~COM8
LCD PANEL
1 Line X 8 Characters
SEG1~SEG40
Pin No. Symbol
1 VSS Ground
2 VDD Power supply
3 VLCD 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
L- LED-(K) Place also refer to 6.1 PCB Drawing and description
L+ LED+(A) Place also refer to 6.1 PCB Drawing and description
Function
Display Data Signal
Version: 5.1.4 PAGE: 4
DEM 08172 SYH-PY Product Specification
6. PCB DRAWING AND DESCRIPTION
DESCRIPTION:
6-1-1 The polarity of the pin L+ and the pin L-:
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 metal-bezel is set on ground when the J1 is closed
Note: In application module, J1=closed
6-1-3 The mounting-holes should be on ground when the J7 is close.
Note: In application module, J7=closed
6-1-4 The LED resistor should be bridged when the J6 is closed.
Note: In application module, J6=open
LED Polarity
L- L+
6-1-5 The R6 and the R7 is the LED resistor.
Note: R6=24 Ohm, R7=open.
Version: 5.1.4 PAGE: 5
DEM 08172 SYH-PY Product Specification
6.2 Example application
6-2-1 The LED resistor should be bridged as following.
6-2-2 L- is the anode and L+ is the cathode as following.
J2
6-2-3 L- is the cathode and L+ is the anode as following.
J3
6-2-4 the metal-bezel is on ground as following.
J6
R6
R7
J4
J5
J1
Version: 5.1.4 PAGE: 6
DEM 08172 SYH-PY Product Specification
7. BACKLIGHT ELECTRICAL/OPTICAL CHARACTERISTICS
4.54.1
0.123
20
70
30
10.0
0.2
572
40
Version: 5.1.4 PAGE: 7
DEM 08172 SYH-PY Product Specification
10.0 to VDD+0.3
8. MAXIMUM ABSOLUTE LIMIT
Characteristics Symbol Value
Power Supply Voltage VDD -0.3 to +7.0
LCD Driver Voltage V
Input Voltage V
Operating Temperature T
Storage Temperature T
VDD-
LCD
-0.3 to VCC+0.3
IN
OPR
STR
-20~+70 ℃
-25~+75 ℃
Unit
V
V
V
Version: 5.1.4 PAGE: 8
DEM 08172 SYH-PY Product Specification
9. ELECTRICAL CHARACTERISTICS
9-1 DC Characteristics
Symbol Characteristics Test Condition Min. Typ. Max. Unit
VDD Operating Voltage - 4.7 5.0 5.3 V
V
LCD Voltage VDD-V5 4.2 4.5 4.8 V
LCD
f
= 270KHz
IDD Power Supply Current
9-2 AC Characteristics
Symbol Characteristics Test Condition Min. Typ. Max. Unit
Internal Clock Operation
fOSC OSC Frequency R = 91KΩ 190 270 350 KHz
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: 5.1.4 PAGE: 9
DEM 08172 SYH-PY Product Specification
Timing Characteristics
Version: 5.1.4 PAGE: 10
DEM 08172 SYH-PY Product Specification
Instruction
10. INSTRUCTION TABLE
Instruction Code
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Description
Description
(270KHz)
Clear
0 0 0 0 0 0 0 0 0 1
Display
Return
0 0 0 0 0 0 0 0 1 x
Home
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
0 0 0 0 1 DL N F x x
Set
Set CGRAM
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0
address
Set DDRAM
address
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
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.
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 F:font
size is 5x11/5x8
Set CGRAM
address in address
counter
Set DDRAM
address in address
counter
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)
1.52 ms
1.52 ms
37 us
37 us
37 us
37 us
37 us
37 us
37 us
37 us
Time
0 us
Version: 5.1.4 PAGE: 11
DEM 08172 SYH-PY Product Specification
11. INTIALIZING BY INSTRUCTION
Version: 5.1.4 PAGE: 12
DEM 08172 SYH-PY Product Specification
Version: 4 13
DEM 08172 SYH-PY Product Specification
12. STANDARD CHARACTER PATTERN
ST7066-0A
Version: 5.1.4 PAGE: 14
DEM 08172 SYH-PY Product Specification
13. LCD MODULES HANDLING PRECAUTIONS
n Please remove the protection foil of polarizer before using.
n The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a
high place, etc.
n 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.
n Do not apply excessive force to the display surface or the adjoining areas since this may cause the
color tone to vary.
n The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle
this polarize carefully.
n 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.
n 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
n 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.
n 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.
n 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: 5.1.4 PAGE: 15
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