1x PLCC20 To DIP20 socket1x PLCC28 To DIP24 socket1x PLCC32 To DIP32 socket1x PLCC44， to DIP40 socket1 x extraction circuits in the PLCCThe idea to work with many programmers Universal Tips: This PLCC44， to DIP40 can use 8051MCU (80S51， 89S52， 89C51， 89C52 .....)， but it can not use the PIC MCU.