UPD17231 4-BIT SINGLE-CHIP MICROCONTROLLER

UPD17231 4-BIT SINGLE-CHIP MICROCONTROLLER

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236 (hereafter called µPD17236 subseries) are 4-bit singlechip microcontrollers for small general-purpose infrared remote control transmitters. It employs a 17K architecture of general-purpose register type devices for the CPU, and can directly execute .

Features

• Infrared remote controller carrier generator circuit (REM output)
• 17K architecture: General-purpose register system
• Program memory (ROM), Data memory (RAM) µPD17230 Program 4 K bytes 223 × 4 bits memory (ROM) (2048 × 16) Data memory (RAM) µPD17231 8 K bytes (4096 × 16) µPD17232 12 K bytes (6144 × 16) µPD17233 16 K bytes (8192 × 16) µPD17234 20 K bytes µPD17235 24 K bytes µPD17236 32 K bytes (10240 × 16) (12288 × 16) (16384 × 16)
• 8-bit timer : 1 channel
• Basic internal timer/Watchdog timer : 1 channel
• Instruction execution time (can be changed in two steps) at fX = 4 MHz at.