 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| RCM1277U-A Liquid crystal displays 16 x 16 dots transmissive large-sized liquid crystal display unit RCM1277U-A Thanks to the high contrast and wide viewing angle of the RCM1277U-A, which is provided by its unique design technology, this module brings forth new applications in brand new LCD fields. ROHM large-sized LCD units are perfect displays for information or sign boards. As a media for informational display, large-sized LCD units must possess high visibility, wide viewing angles, and other such superior qualities. ROHM large-sized LCDs boast an excellent track record and possess guaranteed functionality for assured satisfaction in a variety of situations. !Applications Public displays such as airport displays, train station displays, information boards, and billboards. !External dimensions (Units : mm) 2.50.3 1Max. 0.3Max. 2.5150.3 2Max. 560.3 54Min. 50.970.1 1.10.1 1.10.1 2.650.3 !Features 1) Wide viewing angle, high contrast, and fast response. 2) Compact and light weight for easy assembly. 3) Supports negative or positive display. 4) Low power consumption. 610.3 57.50.3 36.75Max. 33.75Max. 23.75Min. 20.75Min. 2Max. 510.2 54Min. Viewing direction [6:00] [64.7] 40.3 (3.5) (8) [40.5] 350.5 270.3 (4) (15.5) 2.52 0.71 C0.1 CN2 CN1 3 8 230.3 1 460.5 8 1 2 to 2.8 dia. Please specify the viewing direction 0.2 Dots details 1.00.3 [R3.2] 2.70.5 RCM1277U-A Liquid crystal displays !Block diagram LCD COM. 1 64 output driver IC FLM VDD VO M CL1 CL2 DO GND OUTPUT 64 output driver IC COM waveform generator circuit FLM VDD VO M CL1 CL2 DI GND INPUT !Pin functions (1) Input (CN1) Pin no. Symbol IN / OUT IN IN IN IN IN Frame start code Function 1 2 3 4 5 6 7 8 FLM VO VDD M CL1 CL2 DI GND Liquid crystal drive power supply Applies 5 V Liquid crystal drive output AC conversion signal Data latch signal (displays at rising edge) Shift register shift signal (reads data at falling edge) Display data signal (1: On, 0: Off) Ground (2) Output (CN2) Pin no. Symbol IN / OUT OUT OUT OUT OUT OUT Ground Display data code Shift lock signal Data latch signal AC conversion signal 5V Function 1 2 3 4 5 6 7 8 GND DO CL2 CL1 M VDD VO FLM Liquid crystal drive power supply Frame start signal COM. 2 RCM1277U-A Liquid crystal displays !Absolute maximum ratings (Ta = 25C) Parameter Logic power supply voltage LCD drive voltage Input voltage Operating temperature Storage temperature Symbol VDD VDD-VO VIN Topr Tstg Limics -0.3~+7.0 -0.3~+7.0 -0.3~VDD+0.3 0~+50 -10~+60 Unit V V V C C !Electrical characteristics (VDD = 5.0V 0.25V, Ta = 25C) Parameter Input high level voltage Input low level voltage Output high level voltage Output low level voltage Power supply current Symbol VIH VIL VOH VOL IDD Min. 3.5 4.6 - Typ. - Max. 1.5 0.4 6.0 Unit V V V V mA -IOH = -0.4mA IOL = +0.4mA Conditions fCL = 1MHz, fM = 70Hz !AC characteristics (VDD = 5.0V GND = 0V, Ta = 25C) Parameter Shift frequency High level lock width Low level lock width Data setup time Clock setup time 1 Clock setup time 2 Data hold time Clock rise / fall time FLM setup time FLM hold time Output delay time AC conversion signal Symbol fCL tCWH tCWL tSU tSL tLS tDH tct tFDS tFDH tpd fM Applicable terminal CL2 CL1, CL2 CL2 DI CL2 CL1 DI CL1, CL2 FLM FLM DO M Min. 470 470 120 220 220 120 120 120 - Typ. 70 Max. 1 50 250 - Unit MHz ns ns ns ns ns ns ns ns ns ns Hz !Timing characteristics CL2 VIH VIL tct VIH VIL tpd VOH VOL tCWH tct tSU tSL tCWL VIH tDH DI DO CL1 tct VIH VIH ViL tCWH tLS tct FLM tFDS tFDH Fig.1 RCM1277U-A Liquid crystal displays !Optical characteristics (Ta = 25C) NO. 1 Parameter Response speed Front-back Right-left Symbol Tr Td Temperature (C) 25 25 25 25 25 Min. 0 90 20 Typ. 65 45 - Max. 130 100 60 270 - Unit ms (Note 2) (Note 3) K3 (Note 4) Note 2 3 Viewing angle Contrast ratio deg - (Note 1) Drive waveform Static drive 1/f Vop 1 / 2Vop 0 -1 / 2Vop -Vop (3) Maximum viewing angle: The direction with highest contrast expressed at the time axis (refer to above table). (Note 4) Definition of contrast ratio f = Frequency (Note 2) Definition of response speed Contrast ratio = Luminance during application of non-selective waveform Luminance during application of selective waveform n ON IOFF OFF T I ION Tr Td 0.11 Except, n = 1 with positive display and n = -1 with negative display. Tr : Time for segment to darken 90% after selective Waveform switches to non-selective waveform. = 180, = 10 Td : Time for segment to darken 90% after selective Waveform switches to non-selective waveform. = 180, = 10 (Note 3) Definition of viewing angle (, ) Y ( = 0) Z Observer 0.91 Specimen Illumination Photometry Characteristic measuring device LC-4M Constant temperature chamber X ( = 90) LCD Z' Y' ( = 180) X' ( = 270) (1) : Angle subtended by the Y-Y'-axis and the observer's position projected onto the XY-plane. (2) : Angle subtended by observer and the normal Z-Z'-axis (X-axis and Y-axis are positive) RCM1277U-A Liquid crystal displays !Data format (data and display mapping) D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D29 D30 D31 D32 D45 D46 D47 D48 D61 D62 D63 D64 D77 D78 D79 D80 D188 D189 D190 D191 D192 D204 D205 D206 D207 D208 D220 D221 D222 D223 D224 D236 D237 D238 D239 D240 D17 D18 D19 D20 D33 D34 D35 D36 D49 D50 D51 D52 D65 D66 D67 D68 D81 D82 D83 D84 D193 D194 D195 D196 D197 D209 D210 D211 D212 D213 D225 D226 D227 D228 D229 D241 D242 D243 D244 D245 D246 D247 D248 D249 D250 D251 D252 D253 D254 D255 D256 FIRST DATA D2 D4 D6 D8 D252 D254 D256 COM.2 DATA D1 D3 D5 D7 D251 D253 D255 COM.1 DATA LAST DATA RCM1277U-A Liquid crystal displays !Timing chart fM M FLM CL1 CL1 fCL CL1 DATA COM.2 DATA COM.1 DATA CL2 DATA D2 D4 D6 254 256 D2 D4 248 250 252 254 256 D2 D4 D6 D8 254 256 258 D1 D3 No. 1 panel No. 2 panel COM.2 DATA No. n panel COM.1 DATA CL1 SEG. (ON / ON) SEG. (ON / OFF) SEG (OFF / OFF) COM.1 COM.2 RCM1277U-A Liquid crystal displays !Operation notes (1) Attention points in handling * Protect the module from strong shocks as they can cause damage or defective operation. * The polarizing plate on the surface of the module is soft and can easily be scratched. Wipe away dirt and dust using an alcohol-based cleanser. * If the liquid crystal panel is damaged and liquid crystal contacts your clothing or body, wash immediately with soap and water. * Do not touch the IC lead electrodes or the electrode terminal components. * If the module is to be used for long periods subjected to direct sunlight, employ a filter to block the ultraviolet rays. * Do not store the module in areas of high temperature or high humidity. Do not store the module in locations exposed to direct sunlight or fluorescent light. * During handling of the module, in order to prevent damage to the tab, do not bend it more than two times. (2) Precautions during operation * Do not connect or disconnect the module while the power supply is turned on. * Input the input signal after the module power supply is turned on. When turning it off, turn off the input signal first. Otherwise the IC may be damaged by the latchup phenomenon. (3) Precautions during installation * Be careful to avoid damage from static electricity. A CMOS-IC is used in the modules circuitry that can be easily damaged by static electricity. * A protective film is pasted over the front and back of the module to protect the panel surfaces. When peeling this film off, be sure to peel as slow as possible in order to minimize the generation of static electricity. Use of a ion blower or other deionizing device is recommended. |
Price & Availability of RCM1277U-A
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |