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Display Elektronik GmbH
LCD MODULE
DEM 16217 SYH
Product specification
VERSION:1
02.04.2001
GENERAL SPECIFICATION
MODULE N0. :
DEM 16217 SYH
CUSTOMER P / N :
VERSION NO.
0 1
CHANGE DESCRIPTION
ORIGINAL VERSION CHANGE FRAME DIMENSIONS
DATE
16.03.2001 2001-4-2
PREPARED BY: ZJD
DATE:
02.04.2001
APPROVED BY: MH
DATE:
21.05.2003
DEM 16217 SYH
Product specification
CONTENTS
2 1. FUNCTIONS & FEATURES --------------------------------------------------------------------------2 3. BLOCK DIAGRAM -------------------------------------------------------------------------------3 4. EXTERNAL DIMENSIONS ------------------------------------------------------------------------3 5. PIN ASSIGNMENT --------------------------------------------------------------------------------4 6.1 PCB DRAWING AND DESCRIPTION-----------------------------------------------------4 6.2 EXAMPLE APPLICATION ------------------------------------------------------------------------6.3 THE MODULE NO. IS PRINTED ON THE PCB --------------------------------------- 5 7. DISPLAY DATA RAM (DDRAM) ------------------------------------------------------------5 6 8. INSTRUCTION DESCRIPTION---------------------------------------------------------------9. INTERFACE WITH MPU IN BUS MODE---------------------------------------------------10 10 1). Interface with 8-bit MPU --------------------------------------------------------------------------------------------10 2). Interface with 4-bit MPU --------------------------------------------------------------------------------------------11 10. INITIALIZING BY INSTRUCTION -----------------------------------------------------------11 1). 8-bit interface mode ----------------------------------------------------------------------------------------------12 2). 4-bit interface mode -------------------------------------------------------------------------------------------------13 11. MAXIMUM ABSOLUTE RATINGS---------------------------------------------------------12. ELECTRICAL CHARACTERISTICS ------------------------------------------------------13
12-1 DC CHARACTERISTICS--------------------------------------------------------------------- 13 12-2-1 AC CHARACTERISTICS------------------------------------------------------------------- 15
2 2. MECHANICAL SPECIFICATIONS ------------------------------------------------------------------------------
1 12-2-2 WRITE MODE------------------------------------------------------------------------------- 6 1 12-2-3 READ MODE-------------------------------------------------------------------------------- 6 17 13. STANDARD CHARACTER PATTERN---------------------------------------------------------18 14. FRAME FREQUENCY--------------------------------------------------------------------------15. LCD MODULES HANDLING PRECAUTIONS--------------------------------------------19 19 16. OTHERS --------------------------------------------------------------------------------------------
VERSION : 1
1
DEM 16217 SYH
Product specification
1. FUNCTIONS & FEATURES
DEM 16217 SYH-Series LCD type: MODULE DEM 16217 SYH Viewing Direction Driving Scheme Power Supply Voltage VLCD (VDD-V0) Display Format Internal Memory LCD MODEL LCD TYPE STN Yellow/Green Reflective Positive Mode : 6 O'clock : 1/16 Duty Cycle, 1/5 Bias : 2.7V ~ 5.5V (typ. 5.0V) : 4.5V (typ.) : 16 x 2 Characters ( 5 x 8 dots, Format : 192 Kinds) : CGROM ( 8,320 bits ) : CGRAM ( 64 x 8 bits ) : DDRAM ( 80 x 8 bits for 80 Digits ) : Easy Interface with a 4 - bit or 8 - bit MPU
Interface
2. MECHANICAL SPECIFICATIONS
Character Pitch Character Size Character Font Dot Size Dot Pitch : 3.55(w) x 5.95(h) mm : 2.95(w) x 5.55(h) mm : 5 x 8 dots : 0.55(w) x 0.65(h) mm : 0.60(w) x 0.70(h) mm
3. BLOCK Diagram
DB0~DB7 E R/W RS V0 VDD VSS A K LCD PANEL 2line*16characters
COM1~COM16 LCD controller LSI KS0070B SEG1~SEG80
BACKLIGHT
Figure 1.0
VERSION : 1
2
DEM 16217 SYH 4. External Dimensions
Product specification
Figure 2.0
5. PIN Assignment
Pin No. 1 2 3 4 Symbol VSS VDD V0 RS Function Ground terminal of module Supply terminal of module 2.7 to 5.5 V Power Supply for Liquid crystal Drive Register Select RS = 0 (Instruction Register) RS = 1 (Data Register) Read / Write R/W = 1 (Read) R/W = 0 (Write) Enable Bi-directional Data Bus, Data Transfer is performed once , thru DB0~DB7 , in the case of interface data . Length is 8-bits; and twice , thru DB4~DB7 in the case of interface data length is 4-bits . Upper four bits first then lower four bits .
5
R/W
6 7 8 9 10 11 12 13 14 15 16 VERSION : 1
E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 NC NC
Prepared for version with LED-backlight Prepared for version with LED-backlight 3
DEM 16217 SYH
Product specification
6.1 PCB DRAWING AND DESCRIPTION
Figure 3.0
Description : (Not applicable for version without backlight)
6-1-1.The polarity of the pin 15 and the pin 16 Symbol
Symbol
J3,J5
J2,J4
LED Polarity 15 Pin Anode 16 Pin Cathode Anode
State Each Solder- Bridge Each Open Each Solder- Bridge
J2,J4 J3,J5
Each Open Cathode
6-1-2. The metal-bezel should be on gronud when the J1 is Solder- Bridge . 6-1-3. The LED Resistor should be bridged when the J6 is Solder-Bridge . 6-1-4. The R7,R8 is the LED Resistor. (Not used for this version)
6.2 Example application (Not applicable for version without backlight)
6-2-1 The LED resistor should be bridged as following . R8 R7 R6
VERSION : 1
4
DEM 16217 SYH
Product specification
6-2-2 The 15 pin is the Anode and the 16 pin is the cathode as following . J4 J5 J2
J3 6-2-3 The 15 pin is the cathode and the 16 pin is the Anode as following . J4 J2
J5 J3 6-2-4 The metal-bezel is on ground as following . J1
6.3 THE MODULE NO. IS PRINTED ON THE PCB
Figure 4.0
7. DISPLAY DATA RAM ( DDRAM )
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DISPLAY POSITION DD RAM ADDRESS
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F SECOND LINE FIRST LINE
VERSION : 1
5
DEM 16217 SYH
Product specification
9. INSTRUCTION DESCRIPTION (IE = "LOW" ) 8. INSTRUCTION DESCRIPTION
Outline To overcome the speed difference between the internal clock of KS0070B and the MPU clock, KS0070B performs internal operations by storing control information to IR or DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus (Refer to Table 5 ). Instruction can be divided largely into four kinds . (1) KS0070B function set instructions ( set display methods, set data length, etc. ) (2) address set instruction to internal RAM (3) data transfer instructions with internal ram (4) others . The address of the internal RAM is automatically increased or decreased by 1 . *NOTE : During internal operation, Busy Flag (DB7) is read "1". Busy Flag check must be preceded by the next instruction . When you make an MPU program with checking the Busy Flag (DB7), it must be necessary 1/2 Fosc for executing the next instruction by falling E signal after the Busy Flag (DB7) goes to "0" . Contents
1) Clear Display
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
1
Clear all the display data by writing "20H" (space code) to all DDRAM addresses, and set the DDRAM addresses to "00H" in the AC (address counter). Return cursor to original status, namely, bring the cursor to the left edge on first line of the display . Make entry mode increment (I/D = "1" ) .
2) Return Home
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
1
x
Return Home is the cursor return home instruction . Set DDRAM address to "00H" in the address counter. Return cursor to its original site and return display to its original status, if shifted, Contents of DDRAM does not change .
3) Entry Mode Set
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
1
I/D
SH
Set the moving direction of cursor and display . I/D : Increment/decrement of DDRAM address (cursor or blink ) When I/D = "1" , cursor/blink moves to right and DDRAM address is increased by 1. When I/D = "0" , cursor/blink moves to left and DDRAM address is decreased by 1. *CGRAM operates the same as DDRAM , when reading from or writing to CGRAM . SH: Shift of entire display When DDRAM is in read (CGRAM read/write) operation or SH = "0" , shift of entire display is not performed . If SH = "1" and in DDRAM write operation, shift of entire display is performed according to I/D value (I/D = "1" : shift left, I/D = "0" : shift right ).
VERSION : 1
6
DEM 16217 SYH
Product specification
9. INSTRUCTION DESCRIPTION (IE = "LOW" ) 4).Display ON/OFF CONTROL
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
1
D
C
B
Control display/cursor/blink ON/OFF 1 bit register. D : Display ON/OFF control bit When D = "1" , entire display is turned on . When D = "0" , display is turned off, but display data is remained in DDRAM . C : Cursor ON/OFF control bit When C = "1" , cursor is turned on. When C = "0" , cursor is disappeared in current display, but I/D register retains its data . B : Cursor Blink ON/OFF control bit When B = "1" , cursor blink is on , that performs alternate between all the "1" data and display character at the cursor position. When B = "0" , blink is off.
9. INSTRUCTION DESCRIPTION (IE = "LOW" ) 5).Cursor or Display Shift
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
1
S/C
R/L
X
X
Without writing or reading of display data , Shift right/left cursor position or display This instruction is used to correct or search display data . (Refer to Table 4) During 2-line mode display, cursor moves to the 2nd line after 40th digit of 1st line .
Note that display shift is performed simultaneously in all the line .
When displayed data is shifted repeatedly, each line shifted individually . When displayed shift is performed, the contents of address counter are not changed . Table 4 Shift patterns according to S/C and R/L bits S/C R/L Operation 0 0 Shift cursor to the left, AC is decreased by 1 0 1 Shift cursor to the right, AC is increased by 1 1 0 Shift all the display to the left, cursor moves according to the display 1 1 Shift all the display to the right, cursor moves according to the display
9. INSTRUCTION DESCRIPTION (IE = "LOW" ) 6).Function Set
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
DL
N
F
X
X
DL : Interface data length control bit When DL = "1" , it means 8-bit bus mode with MPU. When DL = "0" , it means 4-bit bus mode with MPU. So to speak, DL is a signal to select 8-bit or 4-bit bus mode . When 4-bit bus mode, it needs to transfer 4-bit data in two parts . N : Display line number control bit When N = "1" , 2-Line display mode is set . When N = "0" , 1-Line display mode is set . F : Display font type control bit When F = "0" , 5 X 7 dots format display mode . When F = "1" , 5 X 10 dots format display mode .
VERSION : 1
7
DEM 16217 SYH 7).Set CGRAM Address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Product specification
0
0
0
1
AC5 AC4 AC3 AC2 AC1 AC0
Set CGRAM Address to AC . This instruction makes CGRAM data available from MPU.
8).Set DDRAM Address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
1
AC6 AC5 AC4 AC3 AC2 AC1 AC0
Set DDRAM Address to AC . This instruction makes DDRAM data available from MPU. In 1-line display mode (N=0 ), DDRAM address is from "00H" to "4FH". In 2-line display mode (N=1 ), DDRAM address in the 1st line is from "00H" to "27H",and DDRAM address in the 2nd line is from "40H" to "67H".
9) Read Busy Flag & Address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
BF
AC6 AC5 AC4 AC3 AC2 AC1 AC0
This instruction shows whether KS0070B is in internal operation or not. If the resultant BF is High, the internal operaation is in progress and should wait until BF to become "Low", which by then the next instruction can be performed. In this instruction value of address counter can also be read.
10) Write data to RAM
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1
0
D7
D6
D5
D4
D3
D2
D1
D0
Write binary 8-bit data to DDRAM/CGRAM. The selection of RAM from DDRAM, CGRAM , is set by the previous address set instruction: DDRAM address set, CGRAM address set, RAM set instruction can also determines the AC direction to RAM. After write operation, the address is automatically increased/decreased by 1, according to the entry mode.
11) Read data from RAM
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1
1
D7
D6
D5
D4
D3
D2
D1
D0
Read binary 8-bit data from DDRAM/CGRAM . The selection of RAM is set by the previous address set instruction. If address set instruction of RAM is not performed before this instruction, the data that is read first is invalid, as the direction of AC is not determined. If the RAM data is read several times without RAM address set instruction before read operation, the correct RAM data from the second, but the first data would be incorrect, as there is no time to transfer RAM data. In case of DDRAM read operation, cursor shift instruction plays the same role as DDRAM address set instruction: it also transfer RAM data to output data register. After read operation address counter is automatically increased/decreased by 1 according to the entry mode. After CGRAM read operation, display shift may not be executed correctly.
*In the case of RAM write operation, AC is increased/decreased by 1 like read operation after this. In this time, AC indicates the next address position, but onlythe previous data can be read by read instruction.
VERSION : 1
8
DEM 16217 SYH
Product specification
(CONTINUED)
Table 5. Instruction Set
Instruction code
Execution
Instruction RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 time (fosc
=270KHz)
Description
clear Display Return home Entry mode set Display on/ off control Cursor or Display shift
Function Set
0
0
0
0
0
0
0
0
0
1
1.53ms Write "20H" to DDRAM. And set DDRAM address to "00H" from AC . Set DDRAM address to "00H" from AC
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 1
0 0 1
0 1 D
1 I/D C X
X SH B X
1.53ms and return cursor to its original position if shifted. 39us 39us 39us Assign cursor moving direction and enable the shift of entire display Set display (D), cursor (C), and blinking of cursor (B) on/off control bit . Set cursor moving and display shift control bit , and the direction , without changing of DDRAM data . Set interface data length (DL : 4-bit/8-bit),
S/C R/L
0 0 0
0 0 0
0 0
0 1
1
DL
N
F
X
X
39us 39us 39us
numbers of display line (N : 1-line/2-line, Display font type (F: 0...) Set CGRAM address in address counter. Set DDRAM address in address counter. Whether during internal operation or not
Set CGRAM Address Set DDRAM Address Read Busy flag and Address
AC5 AC4 AC3 AC2 AC1 AC0
1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
0
1
BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
0us
can be known by reading BF. The contents of address counter can also be read .
Write Data to RAM
1 1
0 1
D7 D6 D5 D7 D6 D5
D4
D3 D2
D1
D0 D0
43us 43us
Write data into internal RAM ( DDRAM/CGRAM ) Read data from internal RAM ( DDRAM/CGRAM )
Read Data from RAM
D4 D3
D2 D1
NOTE : When you make an MPU program with checking the Bus Flag (DB7), it must be necessary 1/2 Fosc for executing the next instruction by falling E signal after the Busy Flag (DB7) goes to "0" .
VERSION : 1
9
DEM 16217 SYH
Product specification
9. INTERFACE WITH MPU IN BUS MODE
1). Interface with 8-bit MPU When interface data length are 8-bits , transfer is performed all at once through 8 ports. From DB0 to DB7 . An Example of timing sequence is shown below .
RS R/W E internal Singnal DB7
Data internal Operation Busy Busy No Busy Data
instruction
Busy Flag check
Busy Flag check
Busy Flag check
instruction
Figure 5.0 Example or 8-bit bus mode timing Diagram
2) Interface with 4-bits MPU When interfacing data length aref 4-bits , only 4 ports, from DB4 to DB7 , are used as data bus . At first, higher 4-bit (in case of 8-bit bus mode, the contents of DB4~DB7) are transferred, and then the lower 4-bit (in case of 8-bit bus mode, the contents of DB0~DB3) are transferred. So transfer is performed in two parts. Busy Flag outputs"1" after the second transfer are ended. Example of timing sequence is shown below .
RS R/W E internal Singnal DB7
internal Operation Busy No Busy
instruction
Busy Flag check
Busy Flag Check
instruction
Figure 6.0 Example or 4-bit bus mode timing Diagram
VERSION : 1
10
DEM 16217 SYH
Product specification
10. INITIALIZING BY INSTRUCTION
10-1 8-bit interface mode
Power on Condition : fosc=270kHz Wait for more than 30ms after VDD rises to 4.5v 0 1 0 1 1-line mode 2-line mode 5 x 7 dots 5 x 10 dots
RS 0
Function set RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 1 1 N F X X
N
F
Wait for more than 39us D 0 1 0 1 0 1 display off display on cursor off cursor on blink off blink on
RS 0
Display on/off control RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 1 D C B
C
Wait for more than 39us
B
RS 0
Clear Display RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 1
Wait for more than 1.53ms I/D Entry mode set RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 1 I/D SH 0 1 decrement mode increment mode
RS 0
SH
0 1
entire shift off entire shift on
Initialization end
VERSION : 1
11
DEM 16217 SYH
10-2 4-bit interface mode Power on
Product specification
Condition : fosc=270kHz Wait for more than 30ms after VDD rises to 4.5v N 0 1 0 1 1-line mode 2-line mode 5 x 7 dots 5 x 10 dots
RS 0 0 0
RW 0 0 0
Function set DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 1 0 X X X X 0 0 1 0 X X X X N F X X X X X X
F
Wait for more than 39us D 0 1 0 1 0 1 display off display on cursor off cursor on blink off blink on
RS 0 0
RW 0 0
Display On/Off Control DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 X X X X 1 D C B X X X X
C
Wait for more than 39us
B
RS 0 0
RW 0 0
Clear Display DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 X X X X 0 0 0 1 X X X X
Wait for more than 1.53ms
Entry mode set RS 0 0 RW 0 0 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 1 0 I/D 0 SH X X X X X X X X
I/D
0 1
decrement mode increment mode
SH Initialization end
0 1
entire shift off entire shift on
VERSION : 1
12
DEM 16217 SYH
Product specification
11. MAXIMUM ABSOLUTE RATINGS (Ta=25C)
Item Power supply voltage(1) Power supply voltage(2) Input voltage Volt. For BL Operating temperature Storage temperature Symbol VDD V0 VIN VLED1 Topr Tstg Standard value -0.3 ~ +7.0 VDD-15.0 ~ VDD+0.3 -0.3 ~ VDD+0.3 4 ~ 4.5 -20 ~ +70 -25 ~ +75 Unit V V V V C C
12. Electrical Characteristics
12-1. DC Characteristics (VDD = 4.5V ~ 5.5V, Ta = -20 ~ +70C)
Characteristic
Operating Voltage
Symbol VDD IDD1
Supply Current IDD2 Input Voltage(1) (except OSC1) Input Voltage(2) ( OSC1)
Standard Value Test MIN TYP MAX Condition 4,5 5,5 0,7 1.0 ceramic resonator fosc = 250kHz Resistor oscillation 0.4 0.6 external clock operation fosc = 270kHz VDD 0,6 VDD 1.0
IOH=-0.205mA
Unit V
mA
VIH1 2.2 VIL1 -0,3 VIH2 VDD-1.0 VIL2 -0.2 VOH1 Output Voltage (1) 2,4 VOL1 (DB0 TO DB7) VOH2 0.9VDD Output Voltage (2) (except DB0 TO DB7) VOL2 VdCOM Voltage Drop VdSEG IIL Input Leakage Current -1 IIN Low Input Current -50 fIC Internal Clock 190 (external Rf) fEC External Clock LCD Driving Voltage VERSION : 1 duty tR,tF VLCD 150 45 4.6
V V V V V uA
VIN=0V,VDD=5V(pull up)
0,4 0.1VDD 1 1 1 -250 350 350 55 0,2 10.0
IOL=1.2uA IOH=-40uA IOL=40uA
IO = 0.1mA VIN=0 V to VDD Rf = 91k 2% (VDD=5V)
-125 270 250 50
kHz kHz % us V 13
VDD-V5 (1/5 Bias )
DEM 16217 SYH
( CONTINUED )
Product specification
(VDD = 2.7V ~ 4.5V, Ta = -20 ~ +70C)
Characteristic
Operating Voltage
Symbol VDD IDD1
Supply Current IDD2 Input Voltage(1) (except OSC1) Input Voltage(2) ( OSC1)
Output Voltage (1)
Standard Value Test MIN TYP MAX Condition 2.7 4.5 0.3 0.5 ceramic resonator fosc = 250kHz Resistor oscillation 0.17 0.3 external clock operation fosc = 270kHz VDD 0.4 VDD 0.2VDD
IOH=-0.1mA
Unit V
mA
(DB0 TO DB7)
Output Voltage (2) (except DB0 TO DB7)
Voltage Drop Input Leakage Current Low Input Current Internal Clock (external Rf)
VIH1 0.7VDD VIL1 -0,3 VIH2 0.7VDD VIL2 VOH1 2 VOL1 VOH2 0.8VDD VOL2 VdCOM VdSEG IIL -1 IIN -10 fIC 190 fEC 125 45 3.0
V V V V V uA
VIN=0V,VDD=3V(pull up)
0,4 0.2VDD 1 1,5 1 -120 350 350 55 0,2 10.0
IOL=0.1mA IOH=-40uA IOL=40uA
IO = 0.1mA VIN=0 V to VDD Rf = 75k 2% (VDD=3V)
-50 250 270 50
kHz kHz % us V
External Clock LCD Driving Voltage
duty tR,tF VLCD
VDD-V5 (1/5 Bias )
VERSION : 1
14
DEM 16217 SYH 12-2-1 AC Characteristics
Product specification
(VDD = 4.5V ~ 5.5V, Ta = -20 ~ +70C)
Mode
Item
E Cycle Time E Rise/Fall Time
Symbol Min Typ Max Unit
tC tR,tF tw tsu1 tH1 tsu2 tH2 tC tR,tF tw tsu tH tD tDH 20 220 40 10 120 ns 220 40 10 60 10 500 25 ns 500 25
(1) Write Mode
E Pulse Width (High, Low)
(refer to Figure 7.0) R/W and RS Setup Time R/W and RS Hold Time Data Setup Time Data Hold Time E Cycle Time E Rise/Fall Time (2) Read Mode E Pulse Width (High, Low)
(refer to Figure 8.0) R/W and RS Setup Time R/W and RS Hold Time Data Output Delay Time Data Hold Time
(VDD = 2.7V ~ 4.5V, Ta = -20 ~ +70C)
Mode
Item
E Cycle Time E Rise/Fall Time
Symbol Min Typ Max Unit
tC tR,tF tw tsu1 tH1 tsu2 tH2 tC tR,tF tw tsu tH tD tDH 5 400 60 20 360 ns 400 60 20 140 10 1400 25 ns 1400 25
(3) Write Mode
E Pulse Width (High, Low)
(refer to Figure 7.0) R/W and RS Setup Time R/W and RS Hold Time Data Setup Time Data Hold Time E Cycle Time E Rise/Fall Time (4) Read Mode E Pulse Width (High, Low)
(refer to Figure 8.0) R/W and RS Setup Time R/W and RS Hold Time Data Output Delay Time Data Hold Time
VERSION : 1
15
DEM 16217 SYH 12-2-2. Write Mode
Product specification
Figure 7.0
12-2-3. Read Mode
Figure 8.0 VERSION : 1 16
DEM 16217 SYH
Product specification
13. STANDARD CHARACTER PATTERN 10.
Upper(4bi ) t Lowerr(4bi ) t
LLLL
CG RAM
LLLH
LLHL
LLHH
LHLL
LHLH
LHHL
LHHH
HLLL
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
HHHH
LLLL
(1)
13. CHARACTER GENERATOR ROM (KS0070B-00)
LLLH
(2)
LLHL
(3)
LLHH
(4)
LHLL
(5)
LHLH
(6)
LHHL
(7)
LHHH
(8)
HLLL
(1)
HLLH
(2)
HLHL
(3)
HLHH
(4)
HHLL
(5)
HHLH
(6)
HHHL
(7)
HHHH
(8)
VERSION : 1
17
DEM 16217 SYH
Product specification
Table 3. Relationship Between character Code (DDRAM) and Character Pattern (CGRAM) Character Code ( DDRAM data ) CGRAM Address CGRAM Data D7 D6 D5 D4 D3 D2 D1 D0 A5 A4 A3 A2 A1 A0 P7 P6 P5 P4 P3 P2 P1 P0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 0 0 1 x x x 0 1 1 1 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 10 0 0 0 0 0 0 0 1 1 1 1 1 1 0 Pattern 8 Pattern number Pattern 1
......
......
0 1 1 1 1 1
......
1 1 1 1 1 0
11
......
......
0
0
0
0
x
1
1
1
1
1
1
0 0 0 0 1 1 1 1
0 0 1 1 0 0 1 1
0 1 1 0 1 0 1 0
x
x
x
10 10 10 1 1 10 10 10
......
0 0 0 1
0 0 0 1
1 1 1 1 1 1 1
......
......
......
0
0
0 0 0 0
0 0 0 0
0 "x": don't care
14. FRAME FREQUENCY (1/16 duty cycle )
1-line selection period
VERSION : 1
Figure 9.0
18
DEM 16217 SYH
Product specification
15. LCD Modules Handling precautions
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 Modules. -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 0C).Whenever possible, the LCD Modules should be stored in the same conditions in which they were shipped from our company.
16. 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 the 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
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