Product 产品介绍
Product 产品介绍 - Graphic
NT7963
NT7963
| Part No. | common | segment | Controller | Logic Voltage | LCD Driver Voltage | Duty | Package |
| NT7963 | - | - | YES | 2.7~5.5V | - | 1/16~1/128 | LQFP-67L, LQFP-64L |
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Overview
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The NT7963 is an LCD controller designed to be used with LCD control driver LSIs and data
display memories. The device has an 8-bit parallel data bus and control lines for reading or writing through a MPU interface. It has a 128 words character generator ROM which can control an external display RAM of up to 64 Kbytes. Allocation of text, graphic and external character generator RAM can be made easily and the display window can be moved freely within the allocated memory range. The device supports a very board range of LCD formats be allowing selection of different combinations via set of programmable inputs. It can be used in text, graphic and combination text-and-graphic modes, and includes various attribute functions. |
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Features
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| •Display format (pin-selectable) Columns: 32, 40, 64, 80 Lines: 2, 4, 6, 8, 10, 12, 14, 16 The combination of number of columns and number of lines must not cause the frequency to exceed 10 MHz. •Character font (pin-selectable) Horizontal dots: 5, 6, 7, 8 Vertical dots: 8 (fixed) It is necessary to set a character font in Graphic mode just as in Text mode. The oscillation frequency does not change with the font selection. •Display duty: 1 / 16 to 1 / 128 •A 128−word character generator ROM is built in as standard. •External display memory: 64 KB max The addresses in display memory of the text area, graphic area and external character generator area are determined by software. •Read or Write operations from the CPU do not disturb the display. •A crystal oscillator circuit is built in. The oscillation frequency is adjusted according to the display size. If using an external clock, use the XI pin as the clock input. (XO open.) External capacitors Crystal oscillation: 20 to 30 pF Ceramic oscillation: 30 to 100 pF Built in feedback resistor: 1MΩ (typ.) •NT7086 can be connected to the device. •External display RAM must be static RAM. The NT7963 cannot refresh D-RAM. •The attribute functions can only be used in Text mode. They cannot be used in Graphic or Combination Character mode. PDF created with pdfFactory Pro trial version www.pdffactory.com |
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Applications
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