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ST7920 Datasheet(PDF) 3 Page - Sitronix Technology Co., Ltd. |
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ST7920 Datasheet(HTML) 3 Page - Sitronix Technology Co., Ltd. |
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3 / 49 page  ST7920 V4.0 3/49 2008/08/18 System Block Diagram Timing Generator 33/49-bit shift register Common Signal Driver Display Data RAM (DDRAM) 64 x 16 bits 64-bit latch circuit Segment Signal Driver 64-bit shift register LCD Drive Voltage Selector CLK Instruction Register (IR) Instruction Decoder Reset Circuit MPU Interface Input/ Output Buffer Address Counter Character Generator ROM (CGROM) 2M bits Character Generator RAM (CGRAM) 1024 bits Cursor Blink Scroll Controller Data Register (DR) Busy Flag Parallel/Serial converter and Attribute Circuit VDD V0 V1 V2 V3 V4 RESI RESO CL1 CL2 M DOUT COM1 to COM32 SEG1 to SEG64 RS RW E DB4 to DB7 DB0 to DB3 Half size Character ROM (HCGROM) 1024x16 bits XRESET Graphic RAM (GDRAM) 1024 x 16 bits XOFF Vss PSB |
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