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ML9050 Datasheet(PDF) 1 Page - OKI electronic componets |
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ML9050 Datasheet(HTML) 1 Page - OKI electronic componets |
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1 / 71 page  ¡ Semiconductor ML9050/9051 1/71 PEDL9050-02 ¡ Semiconductor ML9050/9051 132-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays GENERAL DESCRIPTION The ML9050/9051 is an LSI for dot matrix graphic LCD devices carrying out bit map display. This LSI can drive a dot matrix graphic LCD display panel under the control of an 8-bit microcomputer. Since all the functions necessary for driving a bit map type LCD device are incorporated in a single chip, using the ML9050/9051 makes it possible to realize a bit map type dot matrix graphic LCD display system with only a few chips. Since the bit map method in which one bit of display RAM data turns ON or OFF one dot in the display panel, it is possible to carry out displays with a high degree of freedom such as Chinese character displays, etc. With one chip, it is possible to construct a graphic display system with a maximum of 132 ¥ 65 dots. The display can be expanded further using two chips. The ML9050/9051 is made using a CMOS process. Because it has a built-in RAM, low power consumption is one of its features, and is therefore suitable for displays in battery-operated portable equipment. The ML9050 has 65 common signal outputs and 132 segment signal outputs and one chip can drive a display of up to 65 ¥ 132 dots. The ML9051 has 49 common signal outputs and 132 segment signal outputs and one chip can drive a display of up to 49 ¥ 132 dots. This device is not resistant to radiation or to light. FEATURES • Direct display of the RAM data using the bit map method Display RAM data "1" ... Dot is displayed Display RAM data "0" ... Dot is not displayed • Display RAM capacity ML9050/9051: 65 ¥ 132 = 8580 dots • LCD Drive circuits ML9050: 65 common outputs, 132 segment outputs ML9051: 49 common outputs, 132 segment outputs • Microcomputer interface: Can select an 8-Bit parallel or serial interface • Built-in voltage multiplier circuit for the LCD drive power supply • Built-in LCD drive power supply adjustment circuit • Built-in LCD drive bias resistors • Line reversal drive/frame reversal drive (selected by a command) • Built-in oscillator circuit (Internal RC oscillator/external clock input) • A variety of commands Read/write of display data, display ON/OFF, normal/reverse display, all dots ON/all dots OFF, set page address, set display start address, etc. • Power supply voltage Logic power supply: VDD-VSS = 1.8 V to 5.5 V Voltage multiplier reference voltage: VIN-VSS = 1.8 V to VDD (5-Times multiplier Æ 1.8 V to 3.6 V, 6-times multiplier Æ 1.8 to 3 V, 7-times multiplier Æ 1.8 to 2.5 V) LCD Drive voltage: VBI-VSS = 6.0 to 18 V • Package: Gold bump chip, TCP PEDL9050-02 This version: Dec. 1999 Previous version: Jun. 1999 |
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