These drawings and specifications are the property of Densitron Corporation and may not be reproduced, copied or used without written permission 1. 2. 3. 4. REVISIONS REV DESCRIPTION DATE APPROVED A E0179 Specification subject to change without notice. All dimensions and specifications apply to standard modules. This information may vary for modules with optional features. All dimensions are in millimeters. Precautions:These precautions apply equally to modules from all makers, not just Densitron. Violation of these guidelines may void the warranty and can cause problems ranging from erratic operation to catastrophic display failure. Handling precautions: This device is susceptible to Electro-Static Discharge (ESD) damage. Observe Anti-Static precautions. Power supply precautions: Identify and, at all times, observe absolute maximum ratings for both logic and LC drivers. Note that there is some variance between models. Prevent the application of reverse polarity to VDD and VSS, however briefly. Use a clean power source free from transients. Power up conditions are occasionally "jolting" and may exceed the maximum ratings of the module. The +5V power of the module should also supply the power to all devices which may access the display. Don't allow the data bus to be driven when the logic supply to the module is turned off. DO NOT install a capacitor between the VO (contrast) pin and ground. VDD must, at all times, exceed the VO voltage level. The capacitor combines with the contrast potentiometer to form an R-C network which "holds-up" VO, at powerdown, possibly damaging the module. Operating precautions: DO NOT plug or unplug the module when the system is powered up. Minimize the cable length between the module and host MPU. (Recommended max. length 30 cm). For models with EL backlights, do not disable the backlight by interrupting the HV line. Unloaded inverters produce voltage extremes which may arc within a cable or at the display. Operate the module within the limits of the modules temperature specifications. Mechanical / Environmental precautions: Improper soldering is the major cause of module difficulty. Use of flux cleaner is not recommended as they may seep under the elastomeric connection and cause display failure. Densitron recommends the use of Kester "245" no-clean solder. Mount the module so that it is free from torque and mechanical stress. Surface of LCD panel should not be touched or scratched. The display front surface is an easily scratched, plastic polarizer. Avoid contact and clean only when necessary with soft, absorbent cotton dampened with petroleum benzene. ALWAYS employ anti-static procedure while handling the module. Prevent moisture build-up upon the module and observe the environmental constraints for storage temperature and humidity. DO NOT store in direct sunlight. If leakage of the liquid crystal material should occur, avoid contact with this material, particularly ingestion. If the body or clothing becomes contaminated by the liquid crystal material, wash thoroughly with water and soap. Notes: (unless otherwise specified) Unless otherwise specified: APPROVALS DATE DENSITRON CORPORATION DRAWN Dimensions are mm Tolerances are: CHECKED X=3 .X = 0.5 ISSUED .XX = 0.05 TORRANCE, CA TITLE DWG. NO. 4 LINE X 20 CHARACTERS LCD MODULE LM4045 SHEET 1 OF 8 1.0 DESCRIPTION Dot matrix display module consisting of a Liquid Crystal Display, CMOS driver and controller LSI, printed circuit board, metal support frame and array type Light Emitting Diode (LED) backlight. Available LC fluids types are: TN (twisted nematic), TN-H (extended temperature range TN), NTN (supertwisted nematic), NTN-H (extended temperature range NTN). 2.0 MECHANICAL CHARACTERISTICS Item Package Dimensions Display format Character font format Driving method Dot size Dot pitch Character Size Active display area Viewing area Weight Specifications 77.0 (W) x 47.0 (H) x 16.6 max. (D) 4 line x 20 characters 5 (W) x 7 (H) with attached cursor 1/16 0.42 (W) x 0.46 (H) 0.468 (W) x 0.508 (H) 2.292 (W) x 4.016 (H) 55.0 (W) x 17.5 (H) 58.6 (W) x 21.1 (H) Unit mm dots duty mm mm mm mm mm g Notes:W-Width;H-Height;D-Depth. 3.0 ABSOLUTE MAXIMUM RATINGS Item Symbol Logic supply voltage LC driver supply voltage Operating temperature Storage temperature (Note 1) Humidity: Operating (@40C) Non-operating (@40C) VDD-VSS VDD-VO TOP TST - TN, Min. 0 0 0 -20 - NTN Max. 7 6 +50 +70 85% 95% TN-H, Min. 0 0 -20 -30 - NTN-H Max. 7 13 +70 (Note 3) +80 85% 95% VSS=0V;Ta=25C Unit V V C RH (Note 2) RH (Note 2) Notes: 1: Tested to 100 hrs. 2: Refers to non-condensing conditions. 3. With backlight off. 4.0 ELECTRICAL CHARACTERISTICS Item Input "High" voltage Input "Low" voltage Output "High" voltage Output "Low" voltage Power supply current Symbol VIH VIL VOH VOL IDD DWG. NO. Test Condition - Min. Typ. 2.2 2.4 - 3.0 IOH=0.205mA IOL=1.2mA VDD=5.0V LM4045 VDD=50.25V;Ta=25C Max. Unit VDD 0.6 0.4 - SHEET 2 V V V V mA OF 8 REV. A 5.0 RECOMMENDED LC DRIVE VOLTAGE (VDD-VO) VDD=5.00.25V Temperature Ta= -20C Ta= 0C Ta= 25C Ta= 50C Ta=70C 6.0 TN 4.8 4.6 4.4 - TN-H 9.9 9.3 8.5 8.0 7.5 NTN 4.5 4.2 3.9 - NTN-H 9.5 8.9 8.2 7.7 7.2 BACKLIGHT SPECIFICATIONS: Ta=20C,60%RH,Darkroom. Item LED input voltage LED input current Built-in current limiting resistor External current limiting resistor (recommended) Number of nodes 7.0 POWER SUPPLY Max. Unit 5 200 5.6 Ohm, 1/2 W 20 6 250 - V mA Ohms, W Ohms, W - - TN, NTN V DD VO Typ. VLED ILED R1 R2 N TN-H, NTN-H L C D Symbol V DD +5V VR L C D VO VR +5V -5V V SS V SS V R = 10K - 20K ohm DWG. NO. LM4045 REV. SHEET 3 OF 8 A 8.0 INTERFACE DESCRIPTION Pin No. 1 2 3 4 Symbol VSS VDD VO RS I/O I 5 R/W I 6 7 8 9 10 11 12 13 14 BL1 BL2 E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 VLED+ VLED- I I/O I/O I/O I/O I/O I/O I/O I/O - 9.0 Function Ground (0V) Logic Supply Voltage (+5V) LC Drive voltage for contrast adjustment Register Select 0: Instruction Register 1: Data Register Read / Write 0: Data Write (Module MPU) 1: Data Read (Module MPU) Enable Signal Active High (H L) Bi-directional data bus line 0 Bi-directional data bus line 1 Bi-directional data bus line 2 Bi-directional data bus line 3 Bi-directional data bus line 4 Bi-directional data bus line 5 Bi-directional data bus line 6 Bi-directional data bus line 7 Anode (+): LED backlight input voltage Cathode (-): LED backlight input voltage BLOCK DIAGRAM: E R/W RS DB0 ~ DB7 8 H D 4 4 7 8 0 LCD PANEL 16 40 40 4 DRIVER VO VDD VSS BL1 BACKLIGHT BL2 DWG. NO. LM4045 SHEET 4 OF 8 REV. A 10.0 TIMING CHARACTERISTICS Item Enable cycle time Enable pulse width Enable rise / fall time Address set-up time Address hold time Data delay time Data hold time (Write) Data hold time (Read) Data set-up time Symbol TcycE PW EH tEr/tEf tAS tAH tDDR tDHW tDHR tDSW Min. 500 230 40 10 10 5 80 V IH V IH VI VI RS t AS R/W R/W VI PW EH V IH V IH VI VI t AH V IH V IH PW EH t AH t Ef V IH E V IH V IH VI E VI t DSW V IH VI VI t DHR DB0 to DB7 VI VI t DDR t Er V IH Valid Data V IH VI tH DB0 to DB7 t AH t Ef VI t Er Unit nS nS nS nS nS nS nS nS nS t AS t AH VI Max. 20 160 - READ OPERATION WRITE OPERATION RS Typ. - V OH V OL t cycE Valid V OH Data V OL t cycE 11.0 DD RAM ADDRESS vs. DISPLAY POSITION Character Line 1 Line 2 Line 3 Line 4 1 00 40 14 54 2 01 41 15 55 3 02 42 16 56 4 03 43 17 57 5 04 44 18 58 DWG. NO. 6 05 45 19 59 7 06 46 1A 5A 8 07 47 1B 5B 9 08 48 1C 5C 10 09 49 1D 5D LM4045 11 0A 4A 1E 5E ----------- 18 11 51 25 65 SHEET 5 19 12 52 26 66 OF 8 20 13 53 27 67 REV. A 12.0 OPTICAL CHARACTERISTICS Item Contrast ratio TN, TN-H Contrast ratio NTN Contrast ratio NTN-H Viewing angle TN, TN-H Viewing angle NTN Viewing angle NTN-H Response time Rise Fall Symbol K K K O2-O1 O2-O1 O2-O1 tr tf Test Condition O=20 =0 O=20 =0 O=20 =0 =0 K>1.4 O=20 K=1.4 =0 K>1.4 O=20 K=1.4 =0 K>1.4 O=20 K=1.4 O=20 =0 O=20 =0 Brightness of non-selected dots Brightness of selected dots Max. 250 250 Unit Deg. Deg. Deg. Deg. Deg. Deg. mS mS NTN, NTN-H: O1 < 0 < O2 TN, TN-H: O1 < 20 < O2 Contrast ratio Brightness Typ. 150 150 CONTRAST VERSUS VIEWING ANGLE DEFINITION OF CONTRAST RATIO (K) K = Min. 3 4 5 20 30 40 30 40 40 - Selected dot B2 Non-selected dot 1.4 B1 O1 Driving voltage O2 Viewing angle DEFINITION OF ANGLES O AND DEFINITION OF OPTICAL RESPONSE O2 O1 Y Non-selected 90% 10% Selected 100% X' X Brightness Non-selected Y' tr DWG. NO. LM4045 tf SHEET 6 OF 8 REV. A 14.0 PART NUMBER DESCRIPTION FOR AVAILABLE OPTIONS LM40454C20 Polarizer Type B = Transflective: light background with LED backlight E = Transmissive: dark background with LED backlight F = Transmissive: light background with LED backlight Backlight Color G = Yellow-green (standard) R = Red Fluid Type and Power Supply C = TN with +5VDC operation or TN-H with 5VDC operation S = NTN with +5VDC operation H = NTN-H with 5VDC operation Fluid Type/TN Viewing Direction B = TN, TN-H bottom viewing T = TN, TN-H top viewing N = NTN, NTN-H Background Color for NTN, NTN-H or TN Temperature Range B = Blue background G = Gray background Y = Yellow background H = TN-H DWG. NO. LM4045 SHEET 8 OF 8 REV. A