Description
µPD17225, 17226, 17227, 17228 (hereafter called µPD17225 subseries) are 4-bit single-chip 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 operations between memories instead of the conventional method of executing operations through the accumulator.Moreover, all the instructions are 16-bit 1-word instructions which can be programmed efficiently.In additi
Features
- Infrared remote controller carrier generator circuit (REM output).
- 17K architecture: General-purpose register system.
- Program memory (ROM), Data memory (RAM)
µPD17225
Program memory (ROM) 4 K bytes (2048 × 16) Data memory (RAM)
µPD17226
8 K bytes (4096 × 16)
µPD17227
12 K bytes (6144 × 16)
µPD17228
16 K bytes (8192 × 16)
111 × 4 bits
223 × 4 bits.
- 8-bit timer
: 1 channel.
- Basic internal timer/Watchdog timer : 1 channel (WDOUT output).