PT8154 pinout

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            .--\/--.
 CHR A10 <- |01  28| -- VCC
 PPU A12 -> |02  27| -> CHR A16
 PPU A11 -> |03  26| -> CHR A11     
 PPU A10 -> |04  25| <- CPU D3
 CHR A13 <- |05  24| <- CPU D2
 CHR A14 <- |06  23| <- CPU D4
 CHR A12 <- |07  22| <- CPU D1
 CIR A10 <- |08  21| <- CPU D5
 CHR A15 <- |09  20| <- CPU D0
CPU /RMS -> |10  19| <- CPU D6
 CPU R/W -> |11  18| <- CPU A0
 CPU A14 -> |12  17| <- CPU D7
     GND -- |13  16| <- M2
 CPU A13 -> |14  15| -> PRG /CE
            `------'
             PT8154

Source: [1]