M37225M8-XXXSP

M37225M6/M8/MA/MC–XXXSP, M37225ECSP SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER REJ03B0136-0100Z Rev.1.00 Nov 01, 2000 1. DESCRIPTION The M37225M6/M8/MA/MC–XXXSP are single-chip microcomputers designed with CMOS silicon gate technology. They have a OSD, I2C-BUS interface, PWM output, and 12 V withstand, so it is useful for a channel selection system for TV. The features of the M37225ECSP are similar to those of the M37225M6-XXXSP except that the chip has a built-in PROM which can be written electrically. The differences amang M37225M6/M8/ MA/MC–XXXSP are the ROM, RAM size. Accordingly, the following descriptions will be for the M37225M6-XXXSP. 2. FEATURES qNumber of basic instructions .................................................... 71 qMemory size ROM ......... 24K bytes (M37225M6-XXXSP) 32K bytes (M37225M8-XXXSP) 40K bytes (M37225MA–XXXSP) 48K bytes (M37225MC–XXXSP, M37225ECSP) RAM ......... 1024 bytes (M37225M6/M8-XXXSP) 2048 bytes (M37225MA/MC–XXXSP, M37225ECSP) (✽ ROM correction memory included) qMinimum instruction execution time ......................................... 0.5 µs (at 8 MHz oscillation frequency) qPower source voltage ................................................. 5 V ± 10 % qSubroutine nesting ............................................. 128 levels (Max.) qInterrupts ....................................................... 16 types, 16 vectors q8-bit timers ...........................................