UPD17218
Overview
µPD17215, 17216, 17217, 17218 (hereafter called µPD17215 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.
- Infrared remote controller carrier generator circuit (REM output)
- 17K architecture: General-purpose register system
- Program memory (ROM), Data memory (RAM) µPD17215 Program memory (ROM) 4 K bytes (2048 × 16) Data memory (RAM) µPD17216 8 K bytes (4096 × 16) µPD17217 12 K bytes (6144 × 16) µPD17218 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)
- Instruction execution time (can be changed in two steps) at fX 4 MHz at fX 8 MHz
- External interrupt pin (INT)
- I/O pins
- Supply voltage : : : : : 4 µs (high-speed mode)/8 µs (ordinary mode) 2 µs (high-speed mode)/4 µs (ordinary mode) 1 20 VDD = 2.2 to 5.5 V (at fX = 4 MHz (high-speed mode)) VDD = 2.0 to 5.5 V (at fX = 4 MHz (ordinary mode))
- Low-voltage detector circuit (mask opation) Unless otherwise specified, the µPD17215 is tre
