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SPECIFICATION FOR APPROVAL Product Type: Character Type FSTN Dot Matrix LCD Module Part No.: GWT-C1627A-RGB Customer: Customer Part No.: Date: APPOVED SIGNATURES Customer Geweite 1 GWT-C1627A-RGB 1 . REVISION RECORD 2. GENERAL SPECIFICATION 3. OUTLINE DEMENSION: 4. BLOCK DIAGRAM 5.ABSOLUTE MAXIMUM RATINGS 6.ELECTRICAL CHARACTERISTICS 7.ABSOLUTE MAXIMUM RATINGS FOR LED BACKLIGHT 8.PIN ASSIGNMENT 9.MPU INTERFACE 10.REFLECTOR OF SCREEN AND DIPLAY RAM 11.DISPLAY CONTROL INSTRUCTION 12.OPTICAL CHARACTERISTICS 13.POWER SUPPLY SCHEMATICS 14.APPLICATION EXAMPLE 15. PRECAUTION FOR USING LCM 2 GWT-C1627A-RGB 1 . REVISION RECORD REV DATA V1.1 1-6-2016 PAGES DESCRIPTION Aperture modification to 3.2mm P5 3 GWT-C1627A-RGB 2.GENERAL SPECIFICATION Interface with 4-bit or 8-bit MPU (directly connected M6800 serial MPU) Display Specification Display Character: 16 character X 2 line Character Font:5X7dors+cursor Display color-Display background color : FSTN,R,G&B LED Backlighte Polarize mode: Negative (Positive) , Transmissive Viewing angle: 6:00 Display duty: 1/16 Driving bias: 1/5 Character Generator ROM (CGROM): 8320 bits (192 characterX5X7 dots) &(32 characterX5X10 dots) Character Generator RAM (CGRAM): 64X8 bits (8 charactersX5X8 dots) Display Data RAM (DDRAM) :40X8 bits (80 characters max) Mechanical characteristics (Unit: mm) Extenal dimension: 80.0X36.0X13.5 View area : 64.5X15.5 Character font: 5X7 dots + cursor Character size: 2.96X5.56 Dots size:0.56X0.66 Character pitch: 3.55X5.94 Weight： g POWER： +5V 4 GWT-C1627A-RGB 3. OUTLINE DEMENSION: ４－φ３．２ 4. BLOCK DIAGRAM: SPLC780D SPLC100B RGB- 220ohm 220ohm 220ohm 5 GWT-C1627A-RGB 5.Absolute Maximum Ratings Item Symbol Supply Voltage for logic Supply Voltage for LCD Input Voltage Operating Temperature(T) Storage Temperature(T) Condition Vdd V5 Vi Top Tstg - Standard Value Min Max -0.3 7.0 Vdd-10.0 Vdd+0.3 -0.3 Vdd+0.3 0 50 -20 70 Unit V V V ℃ ℃ 6.ELECTRICAL SPECIFICATIONS(Ta=250C,Vdd=5.0V) Item Symbol Supply Voltage for logic Supply Current for logic Driving Current for LCD Driving Voltage for LCD Input Voltage H level Input Voltage L level Output Voltage H Output Voltage L Standard Value Min Type Max Condition Vdd-GND Idd Iee Vdd-V5 Vih Vil Voh Vol Vdd=5V 4.5 4.2 2.2 -0.3 2.4 - Ioh=-0.205mA Io1=1.2mA Unit 5.0 1.0 0.6 4.5 - 5.5 4.8 Vdd 0.6 0.4 V mA mA V V V V V Type 30 99 Max 40 132 Unit mA mW 7.Absolute Maximum Ratings For Bottom LED Backlight Parameter LED Forward Consumption Current LED Allowable Dissipation Symbol If Pd Test condition Ta=250C Vf=3.3V Min - 8. Pin assignment Pin NO. 1 2 3 4 5 6 7 ~ 14 15 16 17 18 Symbol Vss Vdd Vo RS R/W E DB0 ~ DB7 Function 0V Power Supply +5V For LCD Register Select (H: Data L: Instruction) L: MPU to LCM H: LCM to MPU Enable Data Bit 0 ~ Data Bit 7 A R- K RED CATHODE G- K B- K BLUE CATHODE LED ANODE GREEN CATHODE 6 Remark Variable GWT-C1627A-RGB 9. MPU Interface (Vdd=4.5V~5.5V, Ta=-30~+85℃) Mode Write Mode Read Mode Characteristic E Cycle Time E Rise/Fall Time E Pulse Width (High, Low) 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 E Pulse Width(High, Low) R/W and RS Setup Time R/W and RS Hold Time Data Output Delay Time Data Hold Time Symbol tC tR,tF tPW tSP1 tHD1 tSP2 tHD2 tC tR,tF tPW tSP1 tHD2 tD tHD2 Min. 500 230 40 10 80 10 500 230 40 10 5 IC Specifications See The Reference of Sunplus Data Book-----SPLC780D Timing diagram E R/W RS VIH1 VIH1 VIL1 VIL1 VIH1 VIH1 VIL1 VIL1 VIH1 VIH1 VIL1 VIL1 DB0-DB7 (WRITE) VIH1 DB0-DB7 (READ) VIH1 VIL1 VIL1 7 Valid Data VIH1 VIL1 Valid Data VIH1 VIL1 Type - Max 20 20 120 - Unit ns ns GWT-C1627A-RGB 10. Reflector of Screen and Display RAM Display position 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 DDRAM address 00 01 02 03 04 05 06 07 08 09 Display position 1-11 1-12 1-13 1-14 1-15 1-16 DDRAM address 0A 0B 0C 0D 0E 0F Display position 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 DDRAM address 40 41 42 43 44 45 46 47 48 49 Display position 2-11 2-12 2-13 2-14 2-15 2-16 DDRAM address 4A 4B 4C 4D -1 means first character of line 1 on screen 8 4E 4F GWT-C1627A-RGB 11. DISPLAY CONTROL INSTRUCTION Instruction Instruction Code Clear Description RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 0 1 ExecutionTime(f osc=270kHz) “20H” Write to DDRAM set 1.52ms DDRAM address to “00H” from AC Display Return 0 0 0 0 0 0 0 0 1 - Home Set DDRAM address to “00H” from 1.52ms AC and return cursor to its original position if shifted. The contents of DDRAM are not changed Entry Mode 0 0 0 0 0 0 0 1 I/D SH Set Assign cursor moving direction and 38μs enable the shift of entire display Display 0 0 0 0 0 0 1 D C B ON/OFF Set display (D) cursor(C) and 38μs Set cursor moving and display shift 38μs blinking of cursor(B) on/off Control Cursor or 0 0 0 0 0 1 S/C R/L - - Display control bit, and the direction, without Shift changing DDRAM data Function Set 0 0 0 0 1 DL N F - - Set interface data length of display 38μs line (N: 2line/1line)and, display font type F:5X11dots/5X8dots Set CGRAM 0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0 Address Set CGRAM address in address 38μs counter Set 0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0 DDRAM Set DDRAM address in address 38μs counter Address Read Busy Flag and 0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 Whether during internal operation or 0μs not can be known by reading BF The Address contents of address counter of address counter can also be read Write Data 1 0 D7 D6 D5 D4 D3 D2 D1 D0 to RAM Read Write data into internal RAM 38μs internal RAM 38μs (DDRAM/CGRAM) data 1 1 D7 D6 D5 D4 D3 D2 D1 from RAM D0 Read data from (DDRAM/CGRAM) Instruction Description 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 address, and set DDRAM address to “00H” into AC(address counter).Return cursor to the original status, namely, bring the cursor to the left edge on the first line of the display. Make the entry mode increment(I/D=HIGH) Return Home RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 1 Set DDRAM address to “00H” into the address counter. Return cursor to its original site and return display to its original status, if shifted. Contents of DDRAM do not change. 9 GWT-C1627A-RGB 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=High, cursor/blink moves to right and DDRAM address is increased by 1. When I/D=low, 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 read (CGRAM read/write) operation or SH=”Low”, shifting of entire display is not performed. If SH=High, and DDRAM write operation, shift of entire display is performed according to I/D value(I/D=High, shift left, I/D=Low, shift right). 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 D: Display ON/OFF control bit When D=High, entire display is turned on. When D=Low, display is turned off, but display data remains in DDRAM. C: Cursor ON/OFF control bit When C=High, cursor is turned on. When C=Low, cursor is disappeared in current display, but I/D register preserves its data. B: Cursor Blink ON/OFF control bit When B=High, cursor blink is on ,which performs alternately between all the high data and display characters at the cursor position. When B=Low, Blink is off. 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 Shifting of right/left cursor position or display without writing or reading of display data. This instruction is used to correct or search display data. During 2-line mode display ,cursor moves to the 2nd line after the 40th digit of the 1st line. Note that display shift is performed simultaneously in all the lines. When displayed data is shifted repeatedly, each line is shifted individually. When display shift is performed, the contents of the address counter are not changed. 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 Function set RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 1 DL N F DL: Interface data length control bit When DL=High, it means 8-bit bus mode with MPU. When DL=Low, it means 4-bit bus mode with MPU. When 4-bit bus mode, it needs to transfer 4-bit data twice. N: Display line number control bit When N=Low, 1-line display mode is set. 10 GWT-C1627A-RGB When N=High,2-line display mode is set. F: Display font type control bit When F=Low, 5X8 dots format display mode is set . When F=High, 5X11 dots format display mode. Set CGRAM Address RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0 Set CGRAM address to AC. This instruction makes CGRAM data available from MPU. 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. When 1-line display mode (N=Low ),DDRAM address is from “00H” to “4FH”In 2-line display mode(N=High), DDRAM address in the1st line is from “00H” to “27H” and DDRAM address in the 2nd line is from “40H” to “67H”. Read Busy Flag & Address RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 This instruction shows whether IC is in internal operation or not. If BF is high internal operation is in progress and should wait until BF is to be Low, which by then the next instruction can be performed. In this instruction you can also read the value lf the address counter. 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, and CGRAM, is set by the previous address set instruction(DDRAM address set, CGRAM address set). RAM set instruction can also determine the AC direction to RAM. After write operation, the address is automatically increased/decreased by 1, according the entry mode. 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 the address set instruction of RAM is not performed before this instruction, the data that has been read first is invalid, as the direction of AC is not yet determined. If RAM data is read several times without RAM address instructions set before read operation, the correct RAM data can be obtained from the second. But the first data would be incorrect, as there is no time margin to transfer RAM data. In case of DDRAM read operation, cursor shift instruction plays the same role as DDRAM address set instruction, it also transfers 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. Note: In case of RAM write operation, AC is increased/decreased by 1 as in read operation. At this time, AC 11 GWT-C1627A-RGB indicates the next address position, but only the previous data can be read by the read instruction. Relationship between Character Code and CGRAM Character code D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 x 0 0 0 CGRAM Address A5 A4 A3 A2 A1 A0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 CGRAM Data Pattern number P7 P6 P5 P4 P3 P2 P1 P0 x x x 0 1 1 1 0 Pattern1 x x x 1 0 0 0 0 x x x 1 0 0 0 0 x x x 0 1 1 1 0 x x x 0 0 0 0 1 x x x 0 0 0 0 1 x x x 0 1 1 1 0 x x x 0 0 0 0 0 0 0 x x x x x x x x 0 0 0 x 1 1 1 0 0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 x x x x x x x x x x x x x x x x 0 1 1 1 1 1 1 0 1 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 1 1 1 0 Pattern8 Display Data RAM(DDRAM) DDRAM stores display data of maximum 80x8bits (80 characters). DDRAM address is set in the address counter (AC) as a hexadecimal number MSB AC6 LSB AC5 AC4 AC3 12 AC2 AC1 AC0 GWT-C1627A-RGB Initializing Flowchart (Condition: fosc=270KHZ) [8-Bit Interface] Power on Wait time>40ms After VDD>2.7V Wait time > 15ms after VDD>4.5V RS R/W DB7 0 0 0 DB6 DB5 DB4 DB3 DB3 DB1 DB0 0 1 1 X X X X BF cannot be checked before this instruction Function set(Interface is 8 bits length.) Wait time > 4.1ms RS R/W DB7 DB6 DB5 DB4 DB3 DB3 DB1 DB0 0 0 0 0 1 1 X X X X BF cannot be checked before this instruction Function set(Interface is 8 bits length.) Wait time > 100 us RS 0 R/W DB7 DB6 DB5 DB4 DB3 DB3 DB1 DB0 0 0 0 1 1 X X X X BF cannot be checked before this instruction Function set(Interface is 8 bits length.) BF can be checked after the following Instructions. RS 0 R/W DB7 DB6 DB5 DB4 DB3 DB3 DB1 DB0 0 0 0 1 1 N F X X 0 0 0 0 0 0 1 0 0 0 O O O O O O O O O 1 0 0 0 0 0 0 0 1 I/D S The number of display lines and character font cannot be changed afterwards. Display off Display clear Entry mode set Initialization Ends 13 GWT-C1627A-RGB [4-Bit Interface] Power On Wait time>40ms After VDD>2.7V Wait time > 15ms after VDD>4.5V RS R/W DB7 0 0 0 DB6 DB5 DB4 0 1 1 BF cannot be checked before this instruction Function set(Interface is 8 bits length.) Wait time > 4.1ms RS R/W DB7 0 0 0 DB6 DB5 DB4 0 1 1 BF cannot be checked before this instruction Function set(Interface is 8 bits length.) Wait time > 100us BF cannot be checked before this instruction RS R/W DB7 0 0 0 DB6 DB5 DB4 0 1 1 Function set(Interface is 8 bits length.) BF can be checked after the following RS R/W DB7 DB6 DB5 DB4 instructions 0 0 0 0 1 0 0 0 0 0 1 0 0 0 N F X X 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 Function set(interface is 4 bits length. 0 0 0 0 0 1 Specify the number of the display lines 0 0 0 0 0 0 And character font.) Function set(Set interface to be 4 bits length) Interface is 8 bits length. Function set(Interface to be 4 bits length) Interface is 8 bits length. The number of display lines and character Font cannot be changed afterwards. Display off Display clear Entry mode set Initialization Ends 14 GWT-C1627A-RGB 12.OPTICAL CHARACTERISTICS: SYMBOL CONDITION MIN. TYP. Contrast CR 25℃，Vdd=5V, θ=0, Ø=0 -- 4 -- Rise Time Tr 25℃，Vdd=5V, θ=0, Ø=0 -- 160 240 ms (3) Fall Time Tf 25℃，Vdd=5V, θ=0, Ø=0 -- 100 150 ms (3) -- -- 60 -40 -- 40 DEG (1) ITEM θ1-θ2 Viewing Angle Ø1, Ø2 25℃ MAX. UNIT REF. (2) (1)Definition of viewing Angle: Φ Φ (2)Definition of Contrast Ratio: Contrast Ratio= Brightness of non-selected condition Brightness of selected condition Test condition: standard A light source (3)Response Time: Response time is measured as the shortest period of possible between the change in state of an LCD segments as demonstrated below: 15 GWT-C1627A-RGB V T 10% Brightness 0 90% T Tr Tf 13.POWER SUPPLY SCHEMATICS For Single Source DOT Mtrix LCD Module V DD +5V VO VR (VR=20K) V SS 16 GWT-C1627A-RGB 14. APPLICATION EXAMPLE Application Circuit E P3.0 R/W P3.1 8 L RS C DB0~DB7 P3.2 0 P1.0~P1.7 5 M Vdd Vdd Vss Vss (6M Application Flowchart IC Initializing Set Display ON Set display line Write data to CGRAM Write data to line 1 Write data to line 2 End 17 1 Hz) GWT-C1627A-RGB 18 GWT-C1627A-RGB 15. PRECAUTION FOR USING LCM 1. Liquid Crystal Display (LCD) LCD is made up of glass, organic sealant, organic fluid, and polymer based polarizers. The following precautions should be taken when handing, (1). Keep the temperature within range of use and storage. Excessive temperature and humidity could cause polarization degradation, polarizer peel off or bubble. (2). Do not contact the exposed polarizers with anything harder than an HB pencil lead. To clean dust off the display surface. Wipe gently with cotton. Chamois or other soft material soaked in petroleum benzine. (3). Wipe off saliva or water drops immediately. Contact with water over a long period of time may cause polarizer deformation or color fading, while an active LCD with water condensation on its surface will cause corrosion of ITO electrodes. (4). Glass can be easily chipped or cracked from rough handing. especially at corners and edges. (5). Do not drive LCD with DC voltage. 2. Liquid Crystal Display Modules 2.1 Mechanical Considerations LCM are assembled and adjusted with a high degree of precision. Avoid excessive shocks and do not make any alterations or modifications. The following should be noted. (1). Do not tamper in any way with the tabs on the tabs on the metal frame. (2). Do not modify the PCB by drilling extra holes, changing its outline, moving its components or modifying its pattern. (3). Do not touch the elastomer connector, especially insert an backlight panel (for example, EL). (4). When mounting a LCM make sure that the PCB is not under any tress such as bending or twisting. Elastomer contacts are very delicate and missing pixels could result from slight dislocation of any of the elements. (5). Avoid pressing on the metal bezel, otherwise the elastomer connector could be deformed and lose contact, resulting in missing pie ls. 2.2. Static Electricity LCM contains CMOS LSI’s and the same precaution for such devices should apply, namely (1). The operator should be grounded whenever he/she comes into contact with the module. Never touch any of the conductive parts such as the LSI pads, the copper leads on the PCB and the interface terminals with any parts of the human body. (2). The modules should be kept in antistatic bags or other containers resistant to static for storage. (3). Only properly grounded soldering irons should be used. (4). If an electric screwdriver is used, it should be well grounded and shielded from commutator sparks. (5). The normal static prevention measures should be observed for work clothes and working benches; for the latter conductive ( rubber) mat is recommended. (6). Since dry air is inductive to static, a relative humidity of 50-60% is recommended. 2.3. Soldering (1). Solder only to the I/O terminals. (2). Use only soldering irons with proper grounding and no leakage. (3). Soldering temperature: 280 ℃±10℃ (4). Soldering time: 3 to 4 sec. (5). Use eutectic solder with resin flux fill. (6). If flux is used, the LCD surface should be covered to avoid flux spatters. Flux residue should be removed after wards. 2.4. Operation (1). The viewing angle can be adjusted by varying the LCD driving voltage V0. (2). Driving voltage should be kept within specified range; excess voltage shortens display life. (3). Response time increases with decrease in temperature. (4). Display may turn black or dark blue at temperatures above its operational range; this is (however 19 GWT-C1627A-RGB not pressing on the viewing area) may cause the segments to appear “fractured”. (5). Mechanical disturbance during operation (such as pressing on the viewing area) nay cause the segments to appear “fractured”. 2.5. Storage If any fluid leaks out of a damaged glass cell, wash off any human part that comes into contact with soap and water. Never swallow the fluid. The toxicity is extremely low but caution should be exercised at all the time. 20