ra8825 RAIO Technology Inc., ra8825 Datasheet

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... Dot Matrix RAiO Technology Inc. ©Copyright RAiO Technology Inc. 2005, 2006 RAiO TECHNOLOGY INC. RAiO RA8825 LCD Driver Specification Version 1.1 March 2, 2006 1/6 www.raio.com.tw ...

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... The RA8825 integrates many powerful hardware that including Contrast adjustment, 4x5 Key-Scan, eight General Purpose I/O and EL Backlight signals for EL driver. The RA8825 is a high integration chip of LCD Controller. It reduce a lot of time for system develop, and save much cost for hardware system that due to it provides many features for related LCD display application ...

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... COM8 4 COM9 5 COM10 6 COM11 7 COM12 Logo 8 COM13 9 P1 COM14 10 COM15 11 The RA8825 consists of Display RAM, Command Registers, LCD Controller, LCD Driver, Voltage Booster, Voltage Regulator, MPU Interface and Key-Scan circuit. DB[0:7] RD(EN) WR(R/W) MPU CS I/F Block D/C(RS) C86 BIT4 P/S KST[3..0] Key Scan Control KIN[4..0] Block INT & ...

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... When the MPU use parallel mode and 8-bit then all of the DB[7:0] are valid. When use 4-bit then only DB[4:0] are valid, and DB[7:4] have to keep floating. When “0”, then the interface between MPU and RA8825 is Serial Mode. The pins DB[7:6](SMOD[1:0]) are used to select which serial mode: SMOD : DB[7 ...

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... The MPU interface is 6800 series(Default). The parallel mode is use 8-bit data bus. The parallel mode is use 4-bit data bus(Default). The MPU interface is serial mode(Default). See the setting of The MPU interface is parallel mode. Description Description 5/6 RA8825 128x33 Graphic LCD Driver www.raio.com.tw ...

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... EL Discharge Signal Reset I RST This is Reset signal and active low, Test Pins TEST[2..0] I These pins must contact to GND for normal mode. Test Pins S[1:0 These pins must keep NC for normal mode. RAiO TECHNOLOGY INC. 128x33 Graphic LCD Driver Description 6/6 RA8825 www.raio.com.tw ...