UPD17234 Overview
Description
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 operations between memories instead of the conventional method of executing operations through the accumulator.
Key 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 ×
- Data memory (RAM) µPD17231 8 K bytes (4096 ×
- µPD17232 12 K bytes (6144 ×
- µPD17233 16 K bytes (8192 ×
- µPD17234 20 K bytes µPD17235 24 K bytes µPD17236 32 K bytes (10240 ×
- 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 fX = 8 MHz
