NT68P61A

NT68P61A 8-Bit Microcontroller for Monitor (24K OTP ROM Type) Features T T T T T T T T T T T T 40 pin DIP & 42 pin SDIP package Operating Voltage Range: 4.5V to 5.5V CMOS technology for low power consumption Crystal oscillator or ceramic resonator* available 6502 8-bit CMOS CPU core 8MHz operation of frequency 24K bytes of OTP (one time programming) ROM 256 bytes of RAM (which stores EDID for DDC1/2B) One 8-bit pre-loadable base timer 14 channels of 8 bit PWM outputs: 6 channel with 5V open drain and 8 channel with 12V open drain 2 channel A/D converters with 6-bit resolution 24 bi-directional I/O port pins and 1 I/P pin T T T T T T T Hsync/Vsync signal processor Hardware sync signals polarity & freq. evaluator 2 Built-In I C bus interface Supporting VESA DDC1/2B function Six-interrupt sources - INTV (Vsync INT) - INTE (External INT with rising edge trigger) - INTMR (Timer INT ) - INTA (Slave Address Matched INT) - INTD (Shift Register INT) - INTS (SCL GO-LOW INT) Hardware watch-dog timer function Built-In Low Voltage reset circuit (LVRC) General Description NT68P61A is a monitor component µC for auto-sync and digital controlled applications. It contains a 6502 8-bit CPU core, 256 bytes of RAM used as working RAM and stack area, 24K bytes of OTP ROM**, 14-channel 8bit PWM D/A converters, 2-channel A/D converters for key detection saving I/O pins, one 8 bit pre-loadable base timer, internal Hsync and Vsync signals processor providing mode detection, watch-dog timer preve...