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PDF LM3037BDW Data sheet ( Hoja de datos )
| Número de pieza | LM3037BDW | |
| Descripción | LCD Module | |
| Fabricantes | Shenzhen | |
| Logotipo |  |
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LM3037BDW
LCD Module User Manual
Shenzhen TOPWAY Technology Co., Ltd.
Rev. Descriptions
0.1 Preliminary New release
URL: www.topwaydisplay.com
www.topwaysz.com
Release Date
2007-09-01
Document Name: LM3037BDW-Manual-Rev0.1.DOC
Page: 1 of 13
1 page  
TOPWAY
LCD Module User Manual
LM3037BDW
3. Absolute Maximum Ratings
Items
Symbol
Min.
Max. Unit Condition
Supply Voltage
VDD -0.3 5.5 V VSS = 0V
Input Voltage
Operating Temperature
VIN
TOP
-0.3 VDD+0.3 V VSS = 0V
-20 70 °C No Condensation
Storage Temperature TST -30 80 °C No Condensation
Cautions:
Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this
device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may
affect device reliability.
www.DataSheet44U..coEm lectrical Characteristics
4.1 DC Characteristics
Items
Operating Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Operating Current
Symbol
VDD
VIH1
VIL1
VOH1
VOL1
IDD
MIN.
4.8
0.8VDD
VSS
0.7VDD
VSS
-
TYP.
5.0
-
-
-
-
1.7
MAX.
5.2
VDD
0.4
VDD
0.6
5.0
VSS=0V, VDD =5.0V, TOP =25°C
Unit Applicable Pin
V VDD
V RS, R/W, E, PSB, /RST,
V DB0-DB7
V DB0-DB7 (IOH = -0.1mA)
V DB0-DB7 (IOL = 0.1mA)
mA VDD
4.2 LED Backlight Circuit Characteristics
Items
Forward Voltage
Forward Current
Symbol
VfBLA
IfBLA
MIN.
-
-
TYP.
5.0
34
MAX.
-
50
VSS =0V, IfBLA=34mA, TOP =25°C
Unit Applicable Pin
V BLA
mA BLA
BLA
VSS
URL: www.topwaydisplay.com
www.topwaysz.com
Document Name: LM3037BDW-Manual-Rev0.1.DOC
Page: 5 of 13
5 Page 
TOPWAY
LCD Module User Manual
LM3037BDW
5.5 Display Control Instructions
5.5.1 Basic Instruction Set
Code
RE=0, basic instruction set
Instructions
Function
CLEAR
0
0
0
0
0
0
0
0
0
1
Fill DDRAM with “20h”, and set DDRAM address
counter (AC) to “00h”
HOME
Set DDRAM address counter (AC) to “00h” and put
0 0 0 0 0 0 0 0 1 X cursor to origin.
DDRAM content no changed.
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ENTRY
MODE
Set cursor position and display shift when doing
write or read operation
0
0
0
0
0
0
0
1
I/D
S
I/D=1, cursor move right AC increased by 1
I/D=0, cursor move left, AC decreased by 1
S=1, toggle the shift of the entire display
(based on I/D defined direction)
DISPLAY
ON/OFF
D=1, display ON
D=0, display OFF
0
0
0
0
0
0
1
DC
B
C=1, cursor ON
C=0, cursor OFF
B=1, blink ON
B=0, blink OFF
CURSOR
DISPLAY
CONTROL
0
0
0
0
0
1 S/C R/L X
X
Cursor position and display shift control.
DDRAM content no changed.
FUNCTION
SET
DL=1, 8bit interface
0
0
0
0
1 DL X RE X
X
DL=0, 4bit interface
RE=1, extended instruction
RE=0; basic instruction
SET CGRAM
ADDR
0
0
0
Set CGRAM address to address counter (AC)
1 AC5 AC4 AC3 AC2 AC1 AC0 Make sure that in extended instruction SR=0 (scroll
or RAM address selected)
SET DDRAM
ADDR
0
0
AC7 AC6 AC5 AC4 AC3 AC2 AC1 AC0
Set DDRAM address to address counter (AC),
where AC7 =1, AC6=0
READ BF &
ADDR
0
1
BF
AC6 AC5 AC4 AC3 AC2 AC1 AC0
Read busy flag (BF) for completion of the internal
operation, also read out the value of AC
Write data to internal RAM
WRITE RAM
1
0
D7
D6
D5
D4
D3
D2
D1
D0
(DDRAM, CGRAM,GDRAM)
For 16bit data, write two byte consecutively,
high byte first, then low byte
READ RAM
1
1
D7
D6
D5
D4
D3
D2
D1
D0
Read data from internal RAM
(DDRAM, CGRAM,GDRAM)
Note:
*1. For the details of the Display Control Instructions, please refer to Sitronix ST7920 series datasheet.
*2. RE is the selection byte of basic and extended instruction set. Each time altering the value of RE, it will remain. Thus, it is not
necessary to set RE every time when using the same group of instruction set
URL: www.topwaydisplay.com
www.topwaysz.com
Document Name: LM3037BDW-Manual-Rev0.1.DOC
Page: 11 of 13
11 Page | ||
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