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| Liquid crystal displays 16 characters 2 lines reflective character module RCM7065X The RCM7065X is a reflective, gray mode STN type liquid crystal module with a built-in controller / driver LSI and a display capacity of 16 characters 2 lines. FApplications Personal computers, word processors, facsimiles, telephones, etc. FFeatures 1) Wide viewing angle and high contrast. 2) 5 7 dot character matrix with cursor. 3) Interfaces with 4-bit or 8-bit MPUs. 4) Displays up to 181 characters and special symbols. 5) Custom character patterns are displayed with the character RAM. FExternal dimensions (Units: mm) 6) Abundant instruction set including clear display, cursor on / off, and character blinking. 7) Compact and light weight for easy assembly to the host instrument. 8) Operable on single 5 V power supply. 9) Low power consumption. 102 Liquid crystal displays FBlock diagram RCM7065X FPin assignments FPower supply example FAbsolute maximum ratings (Ta = 25_C) 103 Liquid crystal displays FElectrical characteristics (VDD = 5.0 V 0.25 V, Ta = 25_C) RCM7065X FOptical characteristics (Ta = 25_C, = 0_) 104 Liquid crystal displays FTiming chart (1) Writing RCM7065X (2) Reading 105 Liquid crystal displays RCM7065X FPin functions 106 Liquid crystal displays FInstructions RCM7065X 107 Liquid crystal displays FCharacter code and corresponding character pattern RCM7065X 108 Liquid crystal displays FReset function When you turn the power supply on using the internal reset circuit, the module automatically returns to its initial (reset) settings. At the initial settings, the following instructions are carried out. (1) Clear display The busy flag remains in the busy condition (BF = 1) until initialization is completed. This takes 15 ms. (2) Function set DL = 1: 8-bit interface data length N=1 F = 0: 5 7 dot matrix (3) Display on / off control D = 0: Display off C = 0: Cursor off B = 0: Blinking off (4) Entry mode set 1 / D = 1: +1 (increment) S = 0: No shift (5) Select DD RAM Depending on the power supply's rise and fall times when it is turned on, there may be times when the initialization cannot be completed. Therefore, be aware of the following timing relationship. RCM7065X tOFF regulates the power supply breaks, or on and off times. Note) When the above power supply conditions are not met, the internal reset circuit will not operate properly. 109 |
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