M37225MA-XXXSP Datasheet | Renesas

SCRIPTION The M37225M6/M8/MA/MC- XXXSP are single-chip microputers 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 q Number of basic instructions .................................................... 71 q Memory 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) q Minimum instruction execution time ......................................... 0.5 µs (at 8 MHz oscillation frequency) q Power source voltage ................................................. 5 V ± 10 % q Subroutine nesting ............................................. 128 levels (Max.) q Interrupts ....................................................... 16 types, 16 vectors q8-bit timers .................................................................................. 4 q Programmable I/O ports (Ports P0, P1, P2, P30- P32, P35) ..... 28 q Input ports (Ports P33, P34, P50, P51) ........................................ 4 q Output ports (Ports P52- P55) ..................................................... 4 q12 V withstand ports ................................................................... 6 q LED drive ports ........................................................................... 4 q Serial I/O ............................................................ 8-bit ✕ 1 channel q Multi-master I2C-BUS interface .............................. 1 (2 systems) q A-D converter (8-bit resolution)...