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LCD-PM 4X40-5 A
Datasheet
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DISPLAY ELEKTRONIK LCD-PM 4X40-5 A Datasheet

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DISPLAY Elektronik GmbH
LCD MODULE
DEM 40491 SYH-LY
Product Specification Version : 4.1.2
18/Aug/2011
Version : 4.1.2 PAGE: 1
GENERAL SPECIFICATION
MODULE NO. :
DEM 40491 SYH-LY
CUSTOMER P/N
VERSION NO. CHANGE DESCRIPTION DATE
0 ORIGINAL VERSION 08.02.2001
1 CHANGE FUNCTION 22.02.2001
2 CHANGE PIN ASSIGNMENT 26.02.2001
3 CHANGE DDRAM 27.02.2001
4 ADD A/K CONTACT HOLES 29.03.2001
4.1.1 CHANGE IC 24.05.2008
4.1.2 ADD J7 DATA DESCRIPTION 18.08.2011
PREPARED BY: LX DATE: 18.08.2011
APPROVED BY: MH DATE: 18.08.2011
DEM 40491 SYH-LY Product Specification
CONTENTS
1. FUNCTIONS & FEATURES ......................................................................................................................4
2. MECHANICAL SPECIFICATIONS.............................................................................................................4
3. BLOCK DIAGRAM........................................................................................................................................5
6. PCB DRAWING AND DESCRIPTION ........................................................................................................7
7. BACKLIGHT & CHARACTERISTICS ......................................................................................................8
8. DISPLAY DATA RAM (DDRAM).................................................................................................................9
9. MAXIMUM ABSOLUTE LIMIT..................................................................................................................9
10. ELECTRICAL CHARACTERISTICS .....................................................................................................10
11. CONTROL AND DISPLAY COMMAND.................................................................................................12
12. STANDARD CHARACTER PATTERN...................................................................................................13
13. LCD MODULES HANDLING PRECAUTIONS.....................................................................................14
14. OTHERS.......................................................................................................................................................14
DEM 40491 SYH-LY Product Specification
1. FUNCTIONS & FEATURES
: DDRAM (80x8 bits for 80 Digits)
MODULE NAME LCD TYPE
DEM 40491 SYH-LY STN Yellow-Green Transflective Positive Mode
z Viewing Direction : 6:00 z Driving Scheme : 1/16 Duty Cycle, 1/5 Bias z Power Supply Voltage : +5.0 Volt (typ.) z Backlight Color : LED, Yellow Green,Lightbox z V z Display Format : 40*4 Characters (5*8 dots, Format : 208 Kinds) z Internal Memory : CGROM (10,080 bits )
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
Adjustable for Best Contrast : LCD Drive Voltage:4.5 Volt (typ.)
LCD
: CGRAM (64x8 bits )
2. MECHANICAL SPECI FICATIONS
z Module Size : 190.00 x 54.00 x 14.00 mm z Character Pitch : 3.53 x 6.09 mm z Character Size z Character Font : 5 x 8 dots z Dot Size : 0.50 x 0.55 mm z Dot Pitch : 0.57 x 0.62 mm
: 2.78 x 4.89 mm
Version : 4.1.2 PAGE: 4
DEM 40491 SYH-LY Product Specification
3. BLOCK DIAGRAM
E1
R/ W
RS
E2
V0 VDD VSS
4. EXTERNAL DIMENSIONS
seg40
Cont r ol si gnal
seg40
Cont r ol si gnal
seg160
Version : 4.1.2 PAGE: 5
DEM 40491 SYH-LY Product Specification
5. PIN ASSIGNMENT
Pin No. Symbol Function
1 DB7 2 DB6 3 DB5 4 DB4 5 DB3 6 DB2 7 DB1 8 DB0
9 E1 Read/Write Enable Signal of second ST7066 10 R/W Read or Write Select Signal 11 RS Select Display Data ("H") or Instructions ("L") 12 V0 Power Supply for LCD 13 VSS Ground 14 VDD Power supply 15 E2 Read/Write Enable Signal of first ST7066 16 NC NO Connect 17 K Cathode of Backlight 18 A Anode of Backlight
Display Data Signal
Version : 4.1.2 PAGE: 6
DEM 40491 SYH-LY Product Specification
6. PCB DRAWING AND DESCRIPTION
Note: The part no. DEM40491 is printed on the PCB.
DESCRIPTION:
6-1-1.The polarity of the pin 17 and the pin 18:
J3,J5 J2, J4
open Each closed Anode Cathode
Each closed open Cathode Anode
LED Polarity
17 Pin 18 Pin
Note: In application module, J2=J4=open; J3=J5=closed.
6-1-2. The metal-bezel should be on ground when the J1 is solder-Bridge.
Note: In application module, J1=closed.
6-1-3.The LED resistor should be bridged when the J6 is solder-Bridge.
Note: In application module, J6=open.
6-1-4. The mounting-holes should be on ground when the J7 is closed.
Note: In application module, J7=closed
6-1-5.The R8~R11 is the LED resistor.
Note: In application module, R8=R9=R10=R11 = 16Ω
Version : 4.1.2 PAGE: 7
DEM 40491 SYH-LY Product Specification
7. BACKLIGHT & CHARACTERISTICS
(Ta= -20°C to +70°C)
Version : 4.1.2 PAGE: 8
DEM 40491 SYH-LY Product Specification
8. DISPLAY DATA RAM (DDRAM)
9. MAXIMUM ABSOLUTE LIMIT
Item Symbol Standard value
Power supply voltage(1) VDD -0.3~+7.0 Power supply voltage(2) V Input voltage
Volt. For BL
V
LCD
-15.0~VDD+0.3
DD
VIN -0.3~VDD+0.3
VLED1 4~4.5
Operating temperature Topr -20~+70 Storage temperature
Tstg
-30~+80
*Voltage greater than above may damage to the circuit,
V
≥ V1≥ V2≥ V3≥ V4≥ V5 .
DD
Unit
V V
V V
°C
°C
Version : 4.1.2 PAGE: 9
DEM 40491 SYH-LY Product Specification
10. ELECTRICAL CHARACTERISTICS
10-1 DC Characteristics (VDD=4.5V~5.5V, Ta=-20~+70°C)
Item Symbol
Operating Voltage V
DD
MIN TYP MAX
4.5 5 5.5
LCD Driving Voltage VLCD 3.0 4.5 13.0 VDD-V5 V
Standard Value
Test
Condition
-------
Unit
V
Supply Current I
DD
---- 0.35 0.6 VDD=5V,fosc=270kHz mA
10-2 AC Characteristics (V
10-2-1 Write mode (writing data from MPU to Module)
Characteristic Symbol Min Type Max Unit Test PIN
E Cycle Time t
E Rise Time
E Fall Time t
E Pulse width
Address Setup Time t
Address Hold Time
Data Set-up Time t
Data Hold Time t
RS
=4.5V~5.5V, Ta=-20~+70°C)
DD
1200 --- --- ns E
--- --- 25 ns E
--- --- 25 ns E
140 --- --- ns E
0 --- --- ns R/W,RS,E
10 --- --- ns R/W,RS,E
40 --- --- ns DB0~DB7
10 --- --- ns DB0~DB7
VIH1
VIL1
C
t
R
F
t
W
SU1
t
H1
SU2
H2
R/W
DB0~DB 7
E
tAS
tPW
tr
tDSW
Valid Data
tAH
VIL1
tAH
tr
tH
tC
Version : 4.1.2 PAGE: 10
DEM 40491 SYH-LY Product Specification
10-2-2 Read Mode (Reading Data from Module to MPU)
Characteristic Symbol Min Type Max Unit Test PIN
E Cycle Time t
C
1200 --- --- ns E
E Rise Time
E Fall Time t
E Pulse width
Address Setup Time t
Address Hold Time t
Data Setup Time
Data Hold Time
VIH1
RS
V
IL1
tAS
R/W
t
tp
AS
AH
t
DDR
t
R
F
W
--- --- 25 ns E
--- --- 25 ns E
140 --- --- ns E
0 --- --- ns R/W,RS,E
10 --- --- ns R/W,RS,E
--- ---
H
10 --- --- ns DB0~DB7
tPW
100
tAH
tAH
tr
ns DB0~DB7
E
DB0~DB7
tr
tDDR
Val id Data
tC
tH
Version : 4.1.2 PAGE: 11
DEM 40491 SYH-LY Product Specification
11. CONTROL AND DISPLAY COMMAND
Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Clear
Display
Return home 0 0 0 0 0 0 0 0 1 x 1.52ms
Entry mode
Set
Display
on/off
control
Cursor
or
Display Shift
0 0 0 0 0 0 0 0 0 1 1.52ms
0 0 0 0 0 0 0 1 I/D S 37us
0 0 0 0 0 0 1 D C B 37us
0 0 0 0 0 1 S/C R/L x x 37us
Execution time
(fosc=270KHz)
Remark
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.
function
Set
Set CGRAM
address
Set DDRAM
address
Read busy
flag&
address
Write data
to RAM
Read data
from RAM
Note: Be sure the ST7066U is not in the busy state (BF=00 before sending an instruction from the MPU to the ST7066U. If
0 0 0 0 1 DL N F x x 37us
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0 37us Set CGRAM address in address counter
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0 37us Set DDRAM address in address counter
0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 0us
1 0 D7 D6 D5 D4 D3 D2 D1 D0 37us
1 1 D7 D6 D5 D4 D3 D2 D1 D0 37us
DL: interface data is 8/4 bits
N: number of line is 2/1
F: font size is 5x11/5x8
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)
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.
Version : 4.1.2 PAGE: 12
DEM 40491 SYH-LY Product Specification
12. STANDARD CHARACTER PATTERN
Upper( 4bit)
Lowerr(4bit)
LLLL
LLLL
CG RAM
(1)
LLLH LL HL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLH
LLHL
LLHH
LHLL
LHLH
LHHL
LHHH
HLLL
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(1)
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
HHHH
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Version : 4.1.2 PAGE: 13
DEM 40491 SYH-LY Product Specification
13. LCD MODULES HANDLING PRECAUTIONS
Please remove the protective 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°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 : 4.1.2 PAGE: 14
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