Ok so hodge podging something Like the Max232 IC together.
Datasheet for
CD4049UBEGiven:
CD4049UBE Pin 1 -> +5v
CD4049UBE Pin 8 -> +0v
Sends -V to CD4049UBE when RS232 Low is on DB9 Pin 3DB9-Pin 3 -> PNP(Q1) Base
PNP(Q1) Emitter -> CD4049UBE Pin 3
PNP(Q1) Collector -> 0v
For AVR'sCD4049UBE Pin 2 -> MCU Pin 2(PD0)
MCU Pin 3(PD1) -> CD4049UBE Pin 4
CD4049UBE Pin 5 -> DB9 Pin 2
For 8051'sCD4049UBE Pin 2 -> MCU Pin 3.0
MCU Pin 3.1 -> CD4049UBE Pin 4
CD4049UBE Pin 5 -> DB9 Pin 2