CMOS Graphic Display Controller
UPD72020GC-8-3B6(1/3)
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C-MOS GRAPHIC DISPLAY CONTROLLER
-TOP VIEW39 38 37 36 35 34 33 32 31 30 29 28 27
IL08...
Description
UPD72020GC-8-3B6(1/3)
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C-MOS GRAPHIC DISPLAY CONTROLLER
-TOP VIEW39 38 37 36 35 34 33 32 31 30 29 28 27
IL08
NC
NC NC
V DD (+5V) V DD (+5V)
40 41 42 43 44 45 46 47 48 49 50 51 52
NC
GND GND
NC NC
NC NC
26 25 24 23 22 21 20 19 18 17 16 15 14
1 2 3 4 5 6 7 8 9 10 11 12 13
(V DD =+5V) PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 I/O I/O O O I O O I/O O O O I/O I SIGNAL NC AD15/(LC2) A16/(LC3)/ AT.BLINK-CLC A17/(CSR-LC4)/ CSR-IMAGE V DD V DD IC 2xCCLK DBIN HSYNC-REF VSYNC/EX.SYNC BLANK NC NC RAS DRQ/A18/(A13)/ A16 DACK/A19/(A14)/ A17 RD PIN No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 I/O I I I/O I/O I/O I/O I/O I/O I/O I/O I I/O I/O SIGNAL WR A0 DB0 DB1 DB2 DB3 DB4 NC NC DB5 DB6 DB7 GND GND IC LPEN/WAIT/DT AD0 AD1 PIN No. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O SIGNAL AD2 AD3 NC NC AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13(LC0) AD14(LC1) NC
IC;Internally Connected, (
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);When Character mode,
;When Character/Graphic mix mode
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UPD72020GC-8-3B6(2/3)
( 21 22 23 24 25 28 29 30 35 36 37 38 41 42 43 44 45 46 47 48 49 50 51 2 16 17 3 4
);When Character mode, ;When Character/Graphic mix mode
DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7
20 A0 18 RD 19 WR 34 LPEN/WAIT/DT
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13(LC0) AD14(LC1) AD15(LC2)
INPUT 2xCCLK A0 LPEN/WAIT/DT RD WR OUTPUT AT.BLINK-CLC BLANK CSR-IMAGE ...
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