NHD-24064WG-AGYH-VZ#

User’s Guide NHD-24064WG-AGYH-VZ# LCM (Liquid Crystal Display Graphic Module) RoHS Compliant NHD24064WGAGYHVZ#- Newhaven Display 160 x 128 pixels W= Factory Line G= Display Mode: Graphic Model/ Serial Number Green LED B/L STN- Yellow Green Transflective, 6:00 View, Wide Temperature (-20 ~ +70c) With Built-in Positie Voltage Supply; RoHS For product support, contact Newhaven Display International, LLC 2511 Technology Drive, #101 Elgin, IL 60124 Tel: (847) 844-8795 Fax: (847) 844-8796 February 29, 2008 2 Contents 1.Module Classification Information 2.Precautions in use of LCD Modules 3.General Specification 4.Absolute Maximum Ratings 5.Electrical Characteristics 6.Optical Characteristics 7.Interface Description 8.Contour Drawing & Block Diagram 9. Display Control Instruction 10.Timing Characteristics 11. Quality Assurance 12. Reliability 13.Backlight Information Newhaven Display International, LLC NHD-24064WG-A 3 1. Module Classification Information NHD 24064 c d W G － A GY H - VZ# e f ghij 9 c Brand：Newhaven Display d Display Font：240 x 64 Dots e Factory Line: W f Display Type：H→ Character Type, G→ Graphic Type, C→ Color g Model / Serial number: A h Backlight Type： N→ Without backlight T→ LED, White B→ EL, Blue green A→ LED, Amber D→ EL, Green R→ LED, Red W→ EL, White O→ LED, Orange F→ CCFL, White G→ LED, Green Y→ LED, Yellow Green i LCD Mode： B→ TN Positive, Gray T→ FSTN Negative P→ LED, Blue F→ FSTN Positive M→ STN Negative, Blue N→ TN Negative, G→ STN Positive, Gray Y→ STN Positive, Yellow Green j LCD Polarize Type/ A→ Reflective, N.T, 6:00 Temperature range/ D→ Reflective, N.T, 12:00 View direction 9 Special Code H→ Transflective, W.T,6:00 K→ Transflective, W.T,12:00 G→ Reflective, W. T, 6:00 C→ Transmissive, N.T,6:00 J→ Reflective, W. T, 12:00 F→ Transmissive, N.T,12:00 B→ Transflective, N.T,6:00 I→ Transmissive, W. T, 6:00 E→ Transflective, N.T.12:00 L→ Transmissive, W.T,12:00 VZ# : Built-in Positive Voltage, RoHS Newhaven Display International, LLC NHD-24064WG-A 4 2.Precautions in use of LCD Modules (1)Avoid applying excessive shocks to the module or making any alterations or modifications to it. (2)Don’t make extra holes on the printed circuit board, modify its shape or change the components of LCD module. (3)Don’t disassemble the LCM. (4)Don’t operate it above the absolute maximum rating. (5)Don’t drop, bend or twist LCM. (6)Soldering: only to the I/O terminals. (7)Storage: please storage in anti-static electricity container and clean environment. 3.General Specification Item NHD-24064WG-AGYH-VZ# Dimension Unit 240 x 64dots － 180.0 x 65.0 x 16.0(MAX) mm View area 133.0 x 39.0 mm Active area 127.16 x 33.88 mm Dot size 0.48 x 0.48 mm Dot pitch 0.52 x 0.52 mm Character size 0.49 x 0.49 mm Character pitch 0.53 x 0.53 mm Number of Characters Module dimension LCD type STN-GRAY, Positive, Transflective Duty 1/64 View direction 6 o’clock Backlight Type LED Green Newhaven Display International, LLC NHD-24064WG-A 5 4.Absolute Maximum Ratings Item Symbol Min Typ Operating Temperature TOP -20 - +70 Storage Temperature TST -30 － +80 75 80 % Operating Humidity ( *1) Max Unit ℃ ℃ VI Vss － VDD V Supply Voltage For Logic VDD-VSS -0.3 － +7 V Supply Voltage For LCD VDD-V0 0 － 15 V Negative Voltage Output VEE － 10 － V IF － － 1320 mA Input Voltage LED Forward Current *1 : Operating on Humidity 90%,the LCM can stand 96 hours no damage. 5.Electrical Characteristics Item Supply Voltage For Logic Supply Voltage For LCD Symbol Condition Min Typ Max Unit VDD-VSS － 4.75 － 5.25 V Ta=0℃ － － 13.0 Ta=25℃ － 12.0 － Ta=+50℃ 11.0 － － V VDD-V0 V V Input High Volt. VIH － 2.2 － VDD V Input Low Volt. VIL － 0 － 0.8 V Output High Volt. VOH － 2.4 － VDD V Output Low Volt. VOL － 0 － 0.4 V Supply Current IDD VDD=5V － 16 － mA Newhaven Display International, LLC NHD-24064WG-A 6 6.Optical Characteristics Item Symbol Condition Min Typ Max Unit (V)θ CR≧ 2 10 － 105 deg (H)φ CR≧ 2 -30 － 30 deg CR － － 3 － － T rise － － 150 200 ms T fall － － 150 200 ms View Angle Contrast Ratio Response Time Definition of Operation Voltage (Vop) Definition of Response Time ( Tr , Tf ) Non-selected Conition Selected Wave Intensity 100％ Selected Conition Non-selected Conition Intensity Non-selected Wave Cr Max Cr = Lon / Loff 100％ 90％ 10％ Vop Tr Driving Voltage(V) Tf [Negative type] Conditions : [Negative type] Viewing Angle(θ ，φ ) : 0°， 0° Operating Voltage : Vop Frame Frequency : 64 HZ Driving Waveform : 1/N duty , 1/a bias Definition of viewing angle(CR≧ 2) θ f θ l θ b φ = 180° θ r φ = 90° φ = 270° φ = 0° Newhaven Display International, LLC NHD-24064WG-A 7 7.Interface Description Pin No. Symbol Level Description 1 FG － Frame ground ( Connected to bezel ) 2 Vss － GND 3 Vdd － Power supply ( +5 V ) 4 Vo － Power supply for LCD driver 5 /WR L Data write. Write data into T6963C when WR = L 6 /RD L Data read. Read data from T6963C when RD = L 7 /CE L 8 C/D H/L L : Chip enable WR=L , C/D=H : Command Write RD=L , C/D=H : Status Read C/D=L: Data write C/D=L: Data read 9 Vee － 10 /RESET H/L H : Normal ; L : Initialize T6963C 11 DB0 H/L Data bus line 12 DB1 H/L Data bus line 13 DB2 H/L Data bus line 14 DB3 H/L Data bus line 15 DB4 H/L Data bus line 16 DB5 H/L Data bus line 17 DB6 H/L Data bus line 18 DB7 H/L Data bus line 19 FS H/L Pins for selection of font; H : 6 * 8 , L : 8 * 8 20 N.C － Newhaven Display International, LLC Negative voltage –10V output No connection NHD-24064WG-A 8 2.54 4.13 11.5 20 19 7.0 65.0 0.5 52.6 39.0(VA) 33.88(AA) 2 1 4- 3.5 PTH 4- 7.0 PAD 4- 1.0 PTH 2.0 176.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 16.0 MAX 11.0 5.5 180.0 0.5 154.6 133.0(VA) 127.16(AA) 13.3 23.5 26.42 3.5 (P2.54*9) 22.86 13.0 54.0 6.2 13.0 15.56 17.5 8.Contour Drawing & Block Diagram 1.6 20- 1.0 PTH 20- 1.8 PAD LED B/L 0.53 0.49 FGND Vss Vdd Vo WR RD CE C/D Vee RESET DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 FS NC 0.3mm. 0.53 0.49 The non-specified tolerance of dimension is DOT SIZE LED B/L drive directly from A,K . CData LP FR HSCP ED Vdd,V1,V4,V5 T6963C Controller T6A40 Com1~64 80 series or 68 series WR RD CE C/D RESET FS DB0~DB7 Com Driver MPU R 240X64 DOT A K B/L LCM EIO T6A39 Seg1~80 Seg Driver T6A39 Seg81~160 Seg Driver T6A39 Seg160~240 Seg Driver Address Data 8K SRAM 32K optional VR 10K~20K Vdd,V2,V3,V5 Vdd,Vss Vdd Vo Vee Bias and Power Circuit Frame (Bezel) FGND FS H L Font 6X8 8X8 Font select External contrast adjustment. Newhaven Display International, LLC NHD-24064WG-A 9 9.Display control instruction The LCD Module has built in a T6963C LSI controller, It has an 8-bit parallel data bus and control lines for writing or reading through an MPU interface, it has a 128-word character generator ROM ( refer to Table 1. ), which can control an external display RAM of up to 8K bytes. Allocation of text, graphics and external character generator RAM can be made easily and the display window can be moved freely within the allocated memory range. •RAM Interface The external RAM is used to store display data( text, graphic and external CG data ). It can be freely allocated to the memory area( 8 K byte max ). Recommend 0000H TEXT AREA 0C00H GRAPHIC AREA 1800H CG RAM AREA 2000H Newhaven Display International, LLC NHD-24064WG-A 10 ‧ Flowchart of communications with MPU (1) Status Read A status check must be performed before data is read or written. Status check The Status of T6963C can be read from the data lines. RD L H WR L CE C/D H Do to D7 H The T6963C status word format is as follows: MSB STA7 STA6 STA5 STA4 STA3 STA2 STA1 LSB STA0 D7 D6 D5 D4 D3 D2 D1 D0 STA0 Check command execution capability STA1 Check data read/write Capability STA2 Check Auto mode data read capability STA3 Check Auto mode data write capability STA4 Not used 0:Disable 1:Enable 0:Disable 1:Enable 0:Disable 1:Enable 0:Disable 1:Enable － 0:Disable 1:Enable Error flag. Used for Screen Peek and Screen copy 0:No error STA6 commands. 1:Error 0:Disable off STA7 Check the blink condition 1:Normal display (Note 1) It is necessary to check STA0 and STA1 at the same time. There is a possibility of erroneous operation due to a hardware interrupt. (Note 2) For most modes STA0/STA1 are used as a status check. STA5 Check controller operation capability (Note 3) STA2 and STA3 are valid in Auto mode; STA0 and STA1 are invalid. Status Checking flow Newhaven Display International, LLC NHD-24064WG-A 11 (a) (b) (Note 4) When using the MSB=0 command, a Status Read must be performed. If a status check is not carried out, the T6963C cannot operate normally, even after a delay time. The hardware interrupt occurs during the address calculation period (at the end of each line). If a MSB=0 command is sent to the T6963C during this period, the T6963C enters Wait status. If a status check is not carried out in this state before the next command is sent, there is the possibility that the command or data date will not be received. (2) Setting date When using the T6963C, first set the data, then set the command. Procedure for sending a command (a)The case of 1 date (b)The case of 2 data Newhaven Display International, LLC NHD-24064WG-A 12 (Note) When sending more than two data, the last datum (or last two data) is valid. ．COMMAND DEFINITIONS COMMAND REGISTERS SETTING SET CONTROL WORD MODE SET DISPLAY MODE CURSOR PATTERN SELECT CODE D1 D2 00100001 00100010 00100100 01000000 01000001 01000010 01000011 X address Date Low address Low address Columns Low address Columns Y address 00H High address High address 00H High address 00H － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － 1000×000 1000×001 1000×011 1000×100 10000××× 10001××× 10010000 1001××10 1001××11 100101×× 100110×× 100111×× 10100000 10100001 10100010 10100011 10100100 10100101 10100110 10100111 DATA AUTO READ/WRITE 10110000 10110001 10110010 DATA READ/WRITE 11000000 11000001 11000010 11000011 11000100 11000101 Data － Data － Data － 11100000 － SCREEN PEEK FUNCTION Set Cursor Pointer Set Offset Register Set Address Pointer Set Text Home Address Set Text Area Set Graphic Home Address Set Graphic Area OR mode EXOR mode AND mode Text Attribute mode Internal CG ROM mode External CG RAM mode Display off Cursor on, blink off Cursor on, blink on Text on, graphic off Text off, graphic on Text on, graphic on 1-line cursor 2-line cursor 3-line cursor 4-line cursor 5-line cursor 6-line cursor 7-line cursor 8-line cursor Set Data Auto Write Set Data Auto Read Auto Reset － － － － － － － Data Write and Increment ADP Data Read and Increment ADP Data Write and Decrement ADP Data Read and Decrement ADP Data Write and Nonvariable ADP Data Read and Nonvariable ADP Screen Peek X : invalid Newhaven Display International, LLC NHD-24064WG-A 13 COMMAND SCREEN COPY CODE D1 D2 11101000 － － － － － － － － － － － － － － － － － － － － － － 11110××× 11111××× 1111× 001 1111× 001 1111× 010 1111× 011 1111× 100 1111× 101 1111× 110 1111× 110 BIT SET/RESET FUNCTION Screen Copy Bit Reset Bit Set Bit 0 (LSB) Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 (MSB) X: invalid ．Setting registers CODE HEX. FUNCTION D1 D2 00100001 21H SET CURSOR POINTER X ADRS Y ADRS 00100010 23H SET OFFSET REGISTER DATA 00H 00100100 24H SET ADDRESS POINTER LOW ADRS HIGH ADRS (1) Set Cursor Pointer The position of the cursor is specified by X ADRS and Y ADRS. The cursor position can only be moved by this command. Data read/write from the MPU never changes the cursor pointer. X ADRS and Y ADRS are specified as follows. X ADRS 00H to 4FH (lower 7 bits are valid) Y ADRS 00H to 1FH (lower 5 bits are valid) Single-Scan X ADRS 00 to 4FH Y ADRS 00H to 0FH (2) Set Offset Register The offset register is used to determine the external character generator RAM area. The T6963C has a 16-bit address bus as follows. Newhaven Display International, LLC NHD-24064WG-A 14 T6963C assign External character generator, when character code set 80H TO FFH in using internal character generator. Character code 00H to 80H assign External character generator, when External generator mode. The senior five bits define the start address in external memory of the CG RAM area. The next eight bits represent the character code of the character. In internal CG ROM, character codes 00H to 7FH represent the predefined “internal” CG ROM characters, and codes 80H to FFH represent the user’s own “external” characters. In external CG ROM mode, all 256 codes from 00H to FFH can be used to represent the user’s own characters. The three least significant bits indicate one of the eight rows of eight dots that define the character’s shape. The relationship between display RAM address and offset register Offset register data CG RAM hex. address (start to end) 00000 00001 00010 0000 to 07 FFH 0800 to 0FFFH 1000 to 17FFH 11100 11101 11110 11111 E000 to E7FFH E800 to EFFFH F000 to F7FFH F800 to FFFFH (Example 1) Offset register Character code Character generator RAM start address 02H 80H 0001 0100 0000 0000 1 Newhaven Display International, LLC 4 0 0 H NHD-24064WG-A 15 (Example 2) The relationship between display RAM data and display characters γ and ζ are displayed by character generator RAM. (3) Set Address Pointer The Set Address Pointer command is used to indicate the start address for writing to (or reading from) external RAM. The Flowchart for Set Address Pointer command Newhaven Display International, LLC NHD-24064WG-A 16 (upper 8 bits) ．Set Control Word CODE HEX. FUNCTION D1 D2 01000000 40H Set Text Home Address Low address High address 01000001 41H Set Text Area Columns 00H 01000010 42H Set Graphic Home Address Low address High address 01000011 43H Set Graphic Area Columns 00H The home address and column size are defined by this command. (1) Set Text Home Address The starting address in the external display RAM for text display is defined by this command. The text home address indicates the leftmost and uppermost position. Newhaven Display International, LLC NHD-24064WG-A 17 The relationship between external display RAM address and display position TH － TH+CL TH+TA － TH+TA+CL (TH+TA)+TA － TH+2TA+CL (TH+2TA)+TA － TH+3TA+CL － － － TH+(n-1) TA － TH+(n-1) TA+CL TH: Text home address TA: Text area number (columns) CL: Columns are fixed by hardware (pin-programmable). (Example) Text home address ：0000H Text area ：0020H ：32 Columns ：4 Lines 0000H 0001H － 001EH 001FH 0020H 0021H － 003EH 002FH 0040H 0041H － 005EH 005FH 0060H 0061H － 007EH 007FH (2) Set Graphic Home Address The starting address of the external display RAM used for graphic display is defined by this command. The graphic home address indicates the leftmost and uppermost position. The relationship between external display RAM address and display position GH － GH+GL GH+GA － GH+GA+CL (GH+GA)+GA － GH+2GA+CL (GH+2GA)+GA － GH+3GA+CL － － － GH+(n-1) GA － GH+(n-1) GA+CL Newhaven Display International, LLC NHD-24064WG-A 18 GH: Graphic home address GA: Graphic area number (columns) CL: Columns are fixed by hardware (pin-programmable). (Example) Graphic home address ：0000H Graphic area ：0020H ：32 Columns ：2 Lines 0000H 0001H － 001EH 001FH 0020H 0021H － 003EH 003FH 0040H 0041H － 005EH 005FH 0060H 0061H － 007EH 007FH 0080H 0081H － 009EH 009FH 00A0H 00A1H － 00BEH 00BFH 00C0H 00C1H ─ 00DEH 00DFH 00E0H 00E1H － 00FEH 00FFH 0100H 0101H － 011EH 011FH 0120H 0121H － 013EH 013FH 0140H 0141H － 015EH 014FH 0160H 0161H － 017EH 017FH 0180H 0181H － 109EH 019FH Newhaven Display International, LLC NHD-24064WG-A 19 01A0H 01A1H － 01BEH 01BFH 01C0H 01C1H － 01DEH 01DFH 01E0H 01E1H － 01FEH 01FFH (3) Set Text Area The display columns are defined by the hardware Setting. This command can be used to adjust the columns of the display. (Example) LCD size Text home address Text area 20 columns, 4lines 0000H 0014H Set 32 columns, 4 Lines 0000 0001 ……… 0013 0014 ……… 001F 0014 0015 ……… 0027 0028 ……… 0033 0028 0029 ……… 003B 003C ……… 0047 003C 003D ……… 004F 0050 ……… 005B LCD (4) Set Graphic Area The display columns are defined by the hardware setting. This command can be used to adjust the columns of the graphic display. (Example) LCD size 20 columns, 2lines Graphic home address ：0000H Graphic are ：0014H Newhaven Display International, LLC NHD-24064WG-A 20 Set 32 columns, 2 Lines 0000 0001 ……… 0013 0014 ……… 001F 0014 0015 ……… 0027 0028 ……… 0033 0028 0029 ……… 003B 003C ……… 0047 003C 003D ……… 004F 0050 ……… 005B 0050 0051 ……… 0063 0064 ……… 006F 0064 0065 ……… 0077 0078 ……… 0083 0078 0079 ……… 008B 008C ……… 0097 008C 008D ……… 009F 00A0 ……… 00AB 00A0 00A1 ……… 00B3 00B4 ……… 00BF 00B4 00B5 ……… 00C7 00C8 ……… 00D3 00C8 00C9 ……… 00DB 00DC ……… 00E7 00DC 00DD ……… 00EF 00F0 ……… 00FD 00F0 00F1 ……… 0103 0104 ……… 011F 0104 0105 ……… 0127 0128 ……… 0123 0128 0129 ……… 013B 0013C ……… 00147 013C 013D ……… 014F 0150 ……… 015B LCD If the graphic area setting is set to match the desired number of columns on the LCD, the addressing scheme will be automatically modified so that the start address of each line equals the end address of the previous line +1. ．Mode set CODE FUNCTION OPERAND 1000x000 OR Mode － 1000x001 EXOR Mode － 1000x011 AND Mode － 1000x100 TEXT ATTRIBUTE Mode － Newhaven Display International, LLC NHD-24064WG-A 21 10000xxx Internal Character Generator Mode － 10001xxx External Character Generator Mode － X: invalid The display mode is defined by this command. The display mode does not change until the next command is sent. The logical OR, EXOR, AND of text or graphic display can be displayed. In Internal Character Generator mode, character codes 00H to 7FH are assigned to the built-in character generator ROM. The character codes 80H to FFH are automatically assigned to the external character generator RAM. (Example) (Note) Attribute functions can only be applied to text display, since the attribute data is placed in the graphic RAM area. Attribute function The attribute operations are Reverse display, Character blink and Inhibit. The attribute data is written into the graphic area which was defined by the Set Control Word command. Only text display is possible in Attribute Function mode; graphic display is automatically disabled. However, the Display Mode command must be used to turn both Text and Graphic on in order for the Attribute function to be available. The attribute data for each character in the text area is written to the same address in the graphic area. The Attribute function is defined as follows. Attribute RAM 1byte × Newhaven Display International, LLC × × × d3 d2 d1 d0 NHD-24064WG-A 22 d3 d2 d1 d0 FUNCTION 0 0 0 0 Normal display 0 1 0 1 Reverse display 0 0 1 1 Inhibit display 1 0 0 0 Blink of normal display 1 0 1 Blink of reverse display 0 1 1 Blink of inhibit display 1 1 X: invalid ‧ Display mode CODE FUNCTION OPERAND 10010000 Display off － 1001xx10 Cursor on, blink off － 1001xx11 Cursor on, blink on － 100101xx Text on, graphic off － 100110xx Text off, graphic on － 100111xx Text on, graphic on － X: invalid (Note) It is necessary to turn on “Text display” and “Graphic display” in the following cases. a) Combination of text/graphic display b) Attribute function Newhaven Display International, LLC NHD-24064WG-A 23 ‧ Cursor pattern select CODE FUNCTION OPERAND 10100000 1-line cursor － 10100001 2-line cursor － 10100010 3-line cursor － 10100011 4-line cursor － 10100100 5-line cursor － 10100101 6-line cursor － 10100110 7-line cursor － 10100111 8-line cursor － When cursor display is ON, this command selects the cursor pattern in the range 1 line to 8 lines. The cursor address is defined by the Cursor Pointer Set command. ‧ Data Auto Read/Write CODE HEX. FUNCTION OPERAND 10110000 B0H Set Data Auto Write － 10110001 B1H Set Data Auto Read － 10110010 B2H Auto Reset － The command is convenient for sending a full screen of data from the external display RAM. After setting Auto mode, a Data Write (or Read) command is need not be sent between each Newhaven Display International, LLC NHD-24064WG-A 24 datum. A Data Auto Write (or Read) command must be sent after a Set Address Pointer command. After this command, the address pointer is automatically incremented by 1 after each datum. In Auto mode, the T6963C cannot accept any other commands. The Auto Reset command must be sent to the T69963C after all data has been sent, to clear Auto mode. (Note) A Status check for Auto mode (STA2, STA3 should be checked between sending of each datum. Auto Reset should be performed after checking STA3=1 (STA2=1.) Refer to the following flowchart. a) Auto Read mode Newhaven Display International, LLC b) Auto Write mode NHD-24064WG-A 25 Newhaven Display International, LLC NHD-24064WG-A 26 ‧ Date Read/Write CODE HEX. FUNCTION OPERAND 11000000 C0H Data Write and Increment ADP Data 11000001 C1H Data Read and Increment ADP － 11000010 C2H Data Write and Decrement ADP Data 11000011 C3H Data Read and Decrement ADP － 11000100 C4H Data Write and Non-variable ADP Data 11000101 C5H Data Read and Non-variable ADP － This command is used for writing data from the MPU to external display RAM, and reading data from external display RAM to the MPU. Data Write/Data Read should be executed after setting address using Set Address Pointer command. The address pointer can be automatically incremented or decremented using this command. (Note) This command is necessary for each 1-byte datum. Refer to the following flowchart. Newhaven Display International, LLC NHD-24064WG-A 27 ‧ Screen Peek CODE HEX. FUNCTION OPERAND 11100000 E0H Screen Peek －e This command is used to transfer 1 byte of displayed data to the data stack; this byte can then be read from the MPU by data access. The logical combination of text and graphic display data on the LCD screen can be read by this command. The status (STA6) should be checked just after the Screen Peek command. If the address determined by the Set Address Pointer command is not in the graphic area, this commands is ignored and a status flag (STA6) is set. Refer to the following flowchart. Newhaven Display International, LLC NHD-24064WG-A 28 ‧ Screen Copy CODE HEX. FUNCTION OPERAND 11101000 E8H Screen Copy － This command copies a single raster line of data to the graphic area. The start point must be set using the Set Address Pointer command. If the attribute function is being used, this command is not available. (With Attribute data is graphic area data.) Refer to the following flowchart. (Note 1) Newhaven Display International, LLC NHD-24064WG-A 29 ‧ Bit Set/Reset CODE FUNCTION OPERAND 11110xxx Bit Reset － 11111xxx Bit Set － 1111x000 Bit 0 (LSB) － Newhaven Display International, LLC NHD-24064WG-A 30 1111x001 Bit 1 － 1111x010 Bit 2 － 1111x011 Bit 3 － 1111x100 Bit 4 － 1111x101 Bit 5 － X: invalid 1111x110 Bit 6 － 1111x111 Bit 7 (MSB) － This command is used to set or reset a bit of the byte specified by the address pointer. Only one bit can be set/reset at a time. Refer to the following flowchart. Newhaven Display International, LLC NHD-24064WG-A 31 Newhaven Display International, LLC NHD-24064WG-A 32 10.Timing Characteristics Bus Timing ( VSS = 0 V , VDD = 5 V ) Item Symbol Min Typ Max Unit C/D Set-up Time tCDS 100 － － ns C/D Hold Time tCDH 10 － － ns CE, RD, WR Pulse Width tCDS, tRD, tWR 80 － － ns Data Set-up Time tDS 80 － － ns Data Hold Time tDH 40 － － ns Access Time tACC － － 150 ns Output Hold Time tOH 10 － 50 ns Newhaven Display International, LLC NHD-24064WG-A 33 C/D tCDS tCDH CE tCE ,tRD,tWR RD,WR tDS D0 to D7 ( WRITE) tDH D0 to D7 ( READ) tOH tACC 11. Quality Assurance Screen Cosmetic Criteria No. Defect Judgment Criteria A) Clear Acceptable Qty in active area Size: d mm d ≦ 0.1 Disregard 0.1