The TMP8085AP-2/TMP8085AHP-2, hereafter on referred to as TMP8085A, is a 8 bit micro processing unit (MPU). TMP8085A uses a multiplexed data bus. The address is split between the 8 bit address bus and the 8 bit data bus. The on-chip address latches of TMP8155P-2/TMP8156P-2 allow a direct interface with TMP8085A