DATA SHEET MOS INTEGRATED CIRCUIT µPD17240,17241,.
NEC
UPD17243 - 4-BIT SINGLE-CHIP MICROCONTROLLERS
DATA SHEET MOS INTEGRATED CIRCUIT µPD17240,17241,17242,17243,17244,17245,17246 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED .