SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37225M6/M8/MA/MC–XXXSP, M37225ECSP
SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY C...
Description
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 ...........................................
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