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NO. Symbol Level Function 1 LEDA LED,anode. 2 LEDK LED,cathode. 3-4 NC 5 IOVCC 1.8V/2.8V Power supply 6 VCC 2.8V(typ) Power supply. 7-14 DB7-DB0 15 RD 16 WR 17 RS 18 CS 19 TE 20 RESET Reset signal. ...