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DMC20434N Dataheets PDF



Part Number DMC20434N
Manufacturers Optrex
Logo Optrex
Description LCD Module
Datasheet DMC20434N DatasheetDMC20434N Datasheet (PDF)

www.DataSheet4U.com First Edition Approved by Production Div. Aug 28, 1997 Checked by Quality Assurance Div. LCD Module Specification Final Revision Checked by Design Engineering Div. ** Prepared by Type No. Production Div. DMC20434N Table of Contents 1. General Specifications2 2. Electrical Specifications...3 3. Optical Specifications.

  DMC20434N   DMC20434N



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www.DataSheet4U.com First Edition Approved by Production Div. Aug 28, 1997 Checked by Quality Assurance Div. LCD Module Specification Final Revision Checked by Design Engineering Div. ******* Prepared by Type No. Production Div. DMC20434N Table of Contents 1. General Specifications.................................................................2 2. Electrical Specifications...............................................................3 3. Optical Specifications..................................................................5 4. I/O Terminal..............................................................................7 5. Test..........................................................................................9 6. Appearance Standards................................................................10 7. Code System of Production Lot................................................13 8. Type Number...........................................................................13 9. Applying Precautions................................................................13 10. Handling Precautions................................................................14 Revision History Rev. Date Page Comment DMC20434N (AJ) No.97-0208 OPTREX OPTREX CORPORATION Page 1/14 www.DataSheet4U.com 1. General Specifications Operating Temp. Storage Temp. Display Format Display Fonts Viewing Area Outline Dimensions Weight LCD Type : : : : : : : : min. 0˚C ~ max. 50˚C min. –20˚C ~ max. 70˚C 20 characters × 4 lines 5 × 8 dots ( 1 character ) 76.0 (W) × 25.2 (H) mm 98.5 (W) × 60.0 (H) × 11.0 max. (D) mm 65g max. NRD-7141 ( STN / Neutral-mode / Reflective ) 6:00 None Dimensional Outline UE-30371B Viewing Angle Backlight Drawings : : : DMC20434N (AJ) No.97-0208 OPTREX OPTREX CORPORATION Page 2/14 www.DataSheet4U.com 2. Electrical Specifications 2.1. Absolute Maximum Ratings VSS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) Input Voltage VI – -0.3 VCC +0.3 V VCC -VEE – 0 6.5 V Symbol VCC -VSS Conditions – Min. -0.3 Max. 6.5 Units V 2.2. DC Characteristics Ta=25˚C, V SS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Supply Current ICC VCC -VSS=5.0V – 2.3 4.0 mA VOL IOL=1.2mA 0 – 0.4 V VOH IOH=-0.205mA 2.4 – VCC V VIL VCC =5.0V±10% 0 – 0.6 V VIH VCC =5.0V±10% 2.2 – VCC V VCC -VEE Shown in 3.1 V Symbol VCC -VSS Conditions – Min. 4.5 Typ. – Max. 5.5 Units V DMC20434N (AJ) No.97-0208 OPTREX OPTREX CORPORATION Page 3/14 www.DataSheet4U.com 2.3. AC Characteristics VCC =5.0V±10% Parameter Enable Cycle Time Enable Pulse Width Enable Rise/Fall Time Address Setup Time Address Hold Time Write Data Setup Time Write Data Hold Time Read Data Delay Time Read Data Hold Time VIH VIL Symbol Conditions Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1 Fig.1 Fig.2 Fig.2 VIH VIL Min. 500 230 – 40 10 80 10 – 5 Max. – – 20 – – – – 160 – Units ns ns ns ns ns ns ns ns ns tCYC PWEH tEr, tEf tAS tAH tDSW tDHW tDDR tDHR RS tAS tAH R/W VIL PWEH VIL tE r E VIH VIL VIH tE f VIL VIL tDSW VIH VIL tDHW VIH VIL DB0~DB7 Valid Data tCYC Fig.1 Write Operation Timing VIH VIL VIH VIL RS tAS VIH tAH VIH R/W PWEH tE r E VIH VIL VIH tE f VIL VIL tDDR VOH VOL tDHR VOH VOL DB0~DB7 Valid Data tCYC Fig.2 Read Operation Timing DMC20434N (AJ) No.97-0208 OPTREX OPTREX CORPORATION Page 4/14 www.DataSheet4U.com 3. Optical Specifications 3.1. LCD Driving Voltage Parameter Recommended LCD Driving Voltage VCC -VEE Symbol Conditions Ta= 0˚C Ta=25˚C Min. – 4.2 Typ. – 4.5 Max. 5.2 4.8 Units V V Note 1 Ta=50˚C 4.0 – – V Note 1 : Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and response time are not guaranteed over the entire range. 3.2. Optical Characteristics Ta=25˚C, 1/16 Duty, 1/5 Bias, VD=4.5V (Note 4), θ= 0˚, φ = –˚ Parameter Contrast Ratio Viewing Angle Response Rise Note 2 TON – Note 1 Symbol CR Conditions θ= 0˚, φ = –˚ Min. – Typ. 4.5 Max. – Units Shown in 3.3 – 140 210 ms Time Decay Note 3 TOFF – – 180 270 ms Note 1 : Contrast ratio is definded as follows. CR = L OFF / LON LON : Luminance of the ON segments LOFF : Luminance of the OFF segments Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON signal is applied. Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF signal is applied. Note 4 : Definition of Driving Voltage V D VD=VCC -VADJ-VBE Assuming that the typical driving waveforms shown below are applied to the LCD Panel at 1/A Duty - 1/B Bias ( A : Duty Number, B : Bias Number ). Driving voltage VD is definded as follows. VD = (Vth1+Vth2) / 2 Vth1 :The voltage VO-P that should provide 50% of the satulation level in the luminance at the segment which the ON signa.


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