New Part Number Old Part Number No of Characters Lines x Char LCD Fluid Type Module Size HxVxT Weight g Viewing Area HxV Character Size HxV Dot Size HxV mm Dot Spacing mm Power Consumption mW 420 L1671BlJOOO M16417DY 1x16 STN 80 0 x36 0x15 8 35 64 5 x 13 8 3 07 x 5 73 0 55 x 0 75 0 08 L1671BlPOOO M16417JY 1x16 WTSTN 80 0 x36 0x15 8 35 64 5x13 8 3 07 x 5 73 0 55 x 0 75 0 08 420 L1681BlJ200 L1651BlJ200 1x16 STN 151 0x40 0x15 8 75 120 0 x 23 0 6 00x12 72 1 15x1 77 0 06 1245 L1681BlP200 L1651BlLZOO 1x16 WTSTN 151 0x40 0x15 8 75 120 0 x 23 0 6 00x12 72 1 15x1 77 0 06 1245 L167hJOOO M16327DY 2x16 STN 85 0x 30 0x15 8 40 82 0x16 0 2 78 x4 27 0 50 x 0 55 0 07 470 L1672BlPOOO M16327JY 2x16 WTSTN 85 0x 30 0x15 8 40 62 0x16 0 2 78 x4 27 0 50 x 0 55 0 07 470 L1682B1J000 L1642B1J000 2x16 STN 80 0x36 0x15 8 35 64 5x13 8 2 95 x 3 80 0 50 x 0 55 0 05 420 L1682B1P000 L1642B1L000 2x16 WTSTN 80 0x36 0x15 8 35 64 5x13 8 2 95 x 3 80 0 50 x 0 55 0 05 420 L1682 2x16 Unit mm General Tolerance f 0 5 m m Reflective EL Backlight LED Backlight 4 0max 15 3max LED Powered through pins 15 16 or 31 32 OPTIMUM VIEWING ANGLE CONTRAST ADJUSTMENT CIRCUIT L1681 L1692 Series only All Supertwist Character Modules Except L1681 L1692 Series 6 O CLOCK Side Viewing Angles on Supertwist Character Modules 12 O CLOCK Optional STANDARD STN 12022 Lc 10K 1K g 1 L 3 l b k The above schematic applies to all Seiko Instruments standard temperature supertwist character modules except L2022 A variable or fixed resistor must be used on any LCD module as it appears in the above schematic A variable resistor is advisable especially for stationary equipment The variable resistor allows the user to adjust the voltage to get maximum contrast in relationship to whatever angle the user is viewing the LCD within the optimum viewing range A variable also allows the user to adjust the voltage for any temperature fluctuations between 0 and 50 C A fixed resistor limits the LCD to a finite voltage and therefore a very limited viewing angle Fixed resistors should be used in those applications where the display can be adjusted to the particular user i e hand held products b b VLC should not exceed 2V WV The above schematic applies to all Seiko Instruments supertwist character modules with Wide Temperature Fluid A variable or fixed resistor must be used on any LCD module as it appears in the above schematic A variable resistor is advisable especially for stationary equipment The variable resistor allows the user to adjust the voltage to get maximum contrast in relationship to whatever angle the user is viewing the LCD within the optimum viewing range A variable also allows the user to adjust the voltage for any temperature fluctuations between 20 and 70 A fixed resistor limits the LCD to a finite voltage and therefore a very limited viewing angle Fixed resistors should be used in those applications where the display can be adjusted to the particular user i e hand held products OPERATING INSTRUCTIONS INTRODUCTION Seiko Instruments intelligent dot matrix liquid crystal display modules have on board controller and LSI drivers which display alpha numerics Japanese KATA KANA characters and a wide variety of other symbols in either 5 x 7 dot matrix The internal operation in the KS0006 controller chip is determined by signals sent from the MPU The signals READ AND W RITE TIMING DIAGRAMS AND include 1 Register select RS input consisting of instruction register IR when RS 0 and data register DR when RS 1 2 Read write R W 3 Data bus DB7 DBO and 4 Enable strobe E depending on the MPU or through an external parallel I O port Details on instructions data entry execution times etc are explained in the following sections TABLES The following timing characteristics are applicable for all of Seiko s LCD dot matrix character modules item 1 Symbol 1 S t a n d aUnit rd 1 Item Symbol Data hold time Note l I fH 151 InsI 500 ns High Level PW 230 ns 20 ns Enable rise and fall time tER Setup time t 140 Address hold time tAH 10 ns Data delay time t DDR 80 ns Data hold time tH 10 ns RS R W E tEF VOLl is assumed to be 0 8 Vat 2 MHz operation DATA READ FROM MODULE TO MPU Unit CxE Enable cycle time Enable pulse width Standard Min 1 Max DATA WRITE FROM MPU TO MODULE ns INSTRUCTION CODES Clear Display 0 Return Home 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 Clears all display memory and returns the cursor to the home position Address 0 82 ps 1 64ms Returns the cursor to the home position Address 0 shifted to the original position DD RAM contents remain unchanged 40 PLS 1 6ms Sets the cursor move direction and specifies to or not to shift the display These operations write and read 40 ps 1 64ms 0 0 0 0 0 0 0 1 I D S 0 0 0 0 0 0 1 D C B Cursor or Display Shift 1 S C R L Moves the cursor and shifts the display without changing DD RAM contents 40 Ls Function Set DL N F Sets interface data length DL number of display lines N and character font F 40 Ls Sets the CG RAM address CG RAM data is sent and received after this setting 40 Ls Entry Mode Set Display ON OFF Control Set CG RAM Address 0 0 0 Set DD RAM Address 0 0 1 A DO Read Busy Flag 0 BF AC 1 1 AC Sets the DD RAM address DD RAM data is sent and received after this setting 1 Read Data from CG or DD RAM 1 0 Write Data 1 Read Data 40 fis 40 ps Reads Busy Flag BF indicating internal operation is being performed and reads address counter contents Address Write Data to CG or to DD RAM D is display ON OFF control memory remains unchanged in OFF condition C cursor ON OFF B blinking cursor itee ta into DD RAM or 40 j Ls Reads data from DD RAM or CG RAM 40 PLs Doesn t matter DD RAM Display data RAM CG RAM Character generator RAM ACG CG RAM address ADD DD RAM address corresponds to cursor address AC Address counter used for both DD RAM and CG RAM address I D 1 I D 0 increment C 1 c 0 Cursor ON Decrement S 1 S 0 Display shift No display shift B l B O Blink ON Blink OFF D l D 0 Display …
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