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. CHANGE DESCRIPTION DATE 0 ORIGINAL VERSION 16.03.2001 1 CHANGE FRAME DIMENSIONS 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 2. MECHANICAL SPECIFICATIONS -----------------------------------------------------------------------------2 3. BLOCK DIAGRAM -------------------------------------------------------------------------------3 4. EXTERNAL DIMENSIONS ------------------------------------------------------------------------3 5. PIN ASSIGNMENT --------------------------------------------------------------------------------6.1 PCB DRAWING AND DESCRIPTION------------------------------------------------------4 4 6.2 EXAMPLE APPLICATION ------------------------------------------------------------------------6.3 THE MODULE NO. IS PRINTED ON THE PCB --------------------------------------- 5 7. DISPLAY DATA RAM (DDRAM) ------------------------------------------------------------5 8. INSTRUCTION DESCRIPTION----------------------------------------------------------------6 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 12-2-2 WRITE MODE-------------------------------------------------------------------------------16 12-2-3 READ MODE--------------------------------------------------------------------------------16 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 Interface 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 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 COM1~COM16 LCD controller LSI LCD PANEL 2line*16characters KS0070B V0 VDD VSS A K SEG1~SEG80 BACKLIGHT Figure 1.0 VERSION : 1 2 DEM 16217 SYH Product specification 4. External Dimensions Figure 2.0 5. PIN Assignment Pin No. 1 2 3 4 Symbol VSS VDD V0 RS 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 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 . 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 State J2,J4 Each Solder- Bridge Each Open J3,J5 Each Solder- Bridge J2,J4 LED Polarity 15 Pin 16 Pin Anode Cathode Each Open Cathode Anode 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 . J2 J4 J5 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 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F DD RAM ADDRESS 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. 8. INSTRUCTION INSTRUCTION DESCRIPTION DESCRIPTION (IE = "LOW" ) 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. 4).Display INSTRUCTION ON/OFFDESCRIPTION CONTROL (IE = "LOW" ) 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. 5).Cursor INSTRUCTION or Display DESCRIPTION Shift (IE = "LOW" ) 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. 6).Function INSTRUCTION Set DESCRIPTION (IE = "LOW" ) 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 Product specification 7).Set CGRAM Address RS R/W DB7 DB6 0 0 0 1 DB5 DB4 DB3 DB2 DB1 DB0 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 0 0 1 DB6 DB5 DB4 DB3 DB2 DB1 DB0 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 Description Instruction RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 time (fosc =270KHz) clear 0 0 0 0 0 0 0 0 0 1 1.53ms Write "20H" to DDRAM. And set Display DDRAM address to "00H" from AC . Set DDRAM address to "00H" from AC Return 0 0 0 0 0 0 0 0 1 X 1.53ms and return cursor to its original position home if shifted. Entry 0 0 0 0 0 0 0 1 I/D SH 39us mode set Display on/ enable the shift of entire display 0 0 0 0 0 0 1 D C B 39us off control Cursor or Assign cursor moving direction and Set display (D), cursor (C), and blinking of cursor (B) on/off control bit . 0 0 0 0 0 1 S/C R/L X X 39us Set cursor moving and display shift Display control bit , and the direction , without shift changing of DDRAM data . Function Set interface data length (DL : 4-bit/8-bit), 0 Set 0 0 0 1 DL N F X X 39us numbers of display line (N : 1-line/2-line, Display font type (F: 0…) Set CGRAM 0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0 39us Set CGRAM address in address counter. 0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0 39us Set DDRAM address in address counter. Address Set DDRAM Address Whether during internal operation or not Read Busy 0 flag and 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 0us can be known by reading BF. The contents of address counter can Address also be read . Write Data 1 0 D7 D6 D5 D4 D3 D2 D1 D0 43us Write data into internal RAM ( DDRAM/CGRAM ) to RAM Read Data 1 from RAM 1 D7 D6 D5 D4 D3 D2 D1 D0 43us Read data from internal RAM ( DDRAM/CGRAM ) 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 internal Operation DB7 Data Busy instruction Busy Flag check Busy Busy Flag check No Busy Busy Flag check Data 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 internal Operation Busy DB7 instruction Busy Flag check No Busy 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 RS 0 Function set RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 1 1 N F X X N 0 1 1-line mode 2-line mode F 0 1 5 x 7 dots 5 x 10 dots D 0 1 display off display on C 0 1 cursor off cursor on B 0 1 blink off blink on I/D 0 1 decrement mode increment mode SH 0 1 entire shift off entire shift on Wait for more than 39us RS 0 Display on/off control RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 1 D C B Wait for more than 39us 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 RS 0 Entry mode set RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 1 I/D SH Initialization end VERSION : 1 11 DEM 16217 SYH Product specification 10-2 4-bit interface mode Power on Condition : fosc=270kHz Wait for more than 30ms after VDD rises to 4.5v 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 N 0 1 1-line mode 2-line mode F 0 1 5 x 7 dots 5 x 10 dots D 0 1 display off display on C 0 1 cursor off cursor on B 0 1 blink off blink on 0 decrement mode 1 increment mode 0 entire shift off 1 entire shift on Wait for more than 39us 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 Wait for more than 39us 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 RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 X X X X 0 0 0 1 I/D SH X X X X I/D SH Initialization end VERSION : 1 12 DEM 16217 SYH Product specification 11. MAXIMUM ABSOLUTE RATINGS (Ta=25°C) Unit V0 Standard value -0.3 ~ +7.0 VDD-15.0 ~ VDD+0.3 VIN -0.3 ~ VDD+0.3 V VLED1 4 ~ 4.5 -20 ~ +70 -25 ~ +75 V Item Power supply voltage(1) Symbol VDD Power supply voltage(2) Input voltage Volt. For BL Operating temperature Storage temperature Topr Tstg V V °C °C 12. Electrical Characteristics 12-1. DC Characteristics (VDD = 4.5V ~ 5.5V, Ta = -20 ~ +70°C) Characteristic Operating Voltage Symbol VDD IDD1 Supply Current IDD2 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 Unit V mA fosc = 270kHz 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 VDD 0,6 VDD 1.0 Input Voltage(1) (except OSC1) Input Voltage(2) ( OSC1) LCD Driving Voltage VERSION : 1 V IOH=-0.205mA 0,4 IOL=1.2uA IOH=-40uA -125 270 0.1VDD 1 1 1 -250 350 (external Rf) External Clock V IOL=40uA IO = ±0.1mA V V V VIN=0 V to VDD uA VIN=0V,VDD=5V(pull up) Rf = 91k ± 2% (VDD=5V) kHz fEC 150 250 350 kHz duty tR,tF VLCD 45 50 55 0,2 10.0 % us V 4.6 VDD-V5 (1/5 Bias ) 13 DEM 16217 SYH Product specification ( CONTINUED ) (VDD = 2.7V ~ 4.5V, Ta = -20 ~ +70°C) Characteristic Operating Voltage Symbol VDD IDD1 Supply Current IDD2 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 Unit V mA fosc = 270kHz Input Voltage(1) (except OSC1) Input Voltage(2) ( OSC1) Output Voltage (1) (DB0 TO DB7) Output Voltage (2) (except DB0 TO DB7) Voltage Drop Input Leakage Current Low Input Current Internal Clock 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 VDD 0.4 VDD 0.2VDD LCD Driving Voltage VERSION : 1 V IOH=-0.1mA 0,4 IOL=0.1mA IOH=-40uA -50 250 0.2VDD 1 1,5 1 -120 350 (external Rf) External Clock V IOL=40uA IO = ±0.1mA V V V VIN=0 V to VDD uA VIN=0V,VDD=3V(pull up) Rf = 75k ± 2% (VDD=3V) kHz fEC 125 270 350 kHz duty tR,tF VLCD 45 50 55 0,2 10.0 % us V 3.0 VDD-V5 (1/5 Bias ) 14 DEM 16217 SYH Product specification 12-2-1 AC Characteristics (VDD = 4.5V ~ 5.5V, Ta = -20 ~ +70°C) Mode Item E Cycle Time E Rise/Fall Time (1) Write Mode tC 500 tR,tF 25 tw 220 tsu1 40 R/W and RS Hold Time tH1 10 Data Setup Time tsu2 60 Data Hold Time tH2 10 E Cycle Time tC 500 E Pulse Width (High, Low) (refer to Figure 7.0) R/W and RS Setup Time E Rise/Fall Time (2) Read Mode Symbol Min Typ Max Unit tR,tF 25 tw 220 tsu 40 R/W and RS Hold Time tH 10 Data Output Delay Time tD Data Hold Time tDH E Pulse Width (High, Low) (refer to Figure 8.0) R/W and RS Setup Time ns ns 120 20 (VDD = 2.7V ~ 4.5V, Ta = -20 ~ +70°C) Mode Item E Cycle Time E Rise/Fall Time (3) Write Mode 1400 tR,tF 25 400 tsu1 60 R/W and RS Hold Time tH1 20 Data Setup Time tsu2 140 Data Hold Time tH2 10 E Cycle Time tC 1400 E Rise/Fall Time tR,tF ns 25 tw 400 tsu 60 R/W and RS Hold Time tH 20 Data Output Delay Time tD Data Hold Time tDH E Pulse Width (High, Low) (refer to Figure 8.0) R/W and RS Setup Time VERSION : 1 tC tw E Pulse Width (High, Low) (refer to Figure 7.0) R/W and RS Setup Time (4) Read Mode Symbol Min Typ Max Unit ns 360 5 15 DEM 16217 SYH Product specification 12-2-2. Write Mode Figure 7.0 12-2-3. Read Mode Figure 8.0 VERSION : 1 16 DEM 16217 SYH Product specification 13. 10. STANDARD CHARACTER PATTERN Upper(4bit ) LLLL Lowerr(4bit ) LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH CG RAM 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 HHLL HHLH HHHL HHHH VERSION : 1 (4) (5) (6) (7) (8) 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 x 0 0 0 0 0 …… 0 0 0 0 x x x 0 0 1 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 1 1 0 0 1 0 1 …… 0 …… 0 0 1 1 1 1 1 1 0 Pattern number Pattern 1 1 1 1 0 0 0 1 1 1 0 0 0 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 1 0 0 0 0 0 0 x 1 1 1 1 1 1 …… 0 0 0 1 0 0 0 1 0 0 1 x x 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 1 1 0 0 1 0 1 1 0 1 1 0 1 0 1 1 1 …… 0 …… 0 …… 0 …… …… Pattern 8 x 1 1 1 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 1 1 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 0°C).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 VERSION : 1 19