LC72366

Ordering number : EN5065A CMOS LSI LC72358N, 72362N, 72366 Single-Chip PLL Microcontrollers Overview The LC72358N, LC72362N, and LC72366 are 1.33 µs instruction execution time single-chip microcontrollers for electronic tuning applications. These products incorporate a high-speed locking circuit and a high-performance direct PLL circuit that can control the local oscillator C/N characteristics. These products have 256 or 512 bytes of RAM and 16K, 24K or 32K bytes of program ROM on chip, and incorporate a three-channel serial I/O interface, a six-channel A/D converter and other interfaces. Features ROM — LC72358N: 8K steps (8191 × 16 bits) — LC72362N: 12K steps (12287 × 16 bits) — LC72366: 16K steps (16383 × 16 bits) The subroutine area in both products is 4K steps (4095 × 16 bits). RAM — LC72358N, 72362N: 512 × 4 bits (banks 0 to 7) — LC72366: 1K × 4 bits (banks 0 to F) Stack: Eight levels Serial I/O: Three channels (8-bit 3-wire format) There are three internal serial clocks: 12.5 kHz, 37.5 kHz and 187.5 kHz. External interrupts: Two channels (the INT0 and INT1 pins) Switching between rising and falling edge detection is supported. Internal interrupts: Three channels — Two internal timer interrupt channels The timers provide eight interrupt periods: 100 µs, 1 ms, 2 ms, 5 ms, 10 ms, 50 ms, 125 ms and 250 ms. — One serial I/O interrupt channel Multiple interrupt levels: Four levels Hardware priority order INT0 pin > INT1 pin > SI/O pin > internal timer 0...