4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS

DESCRIPTION The µPD17240, 17241, 17242, 17243, 17244, 17245, 17246 (hereafter called the µPD17246 Subseries) are 4-bit single-chip microcontrollers for small general-purpose infrared remote control transmitters. This subseries employs 17K general-purpose register system architecture for the

MOS INTEGRATED CIRCUIT

• Infrared remote controller carrier generator (REM output) • 17K architecture: General-purpose register system • Program memory (ROM), data memory (RAM) • 8-bit timer: 1 channel • Basic interval timer/watchdog timer: 1 channel • Instruction execution time (can be changed in two steps) @ fX