M37221M8-XXXSP Datasheet | Renesas

DESCRIPTION The M37221M4/M8/MA-XXXSP, M37221M6-XXXSP/FP are singlechip microputers designed with CMOS silicon gate technology. They have a OSD, I2C-BUS interface, and PWM, so it is useful for a channel selection system for TV. The features of the M37221EASP/FP are similar to those of the M37221MA-XXXSP except that these chips have a built-in PROM which can be written electrically. The differences among the M37221M4/M8/MA-XXXSP, M37221M6-XXXSP/FP are the ROM size and the RAM size as shown below. Accordingly, the following descriptions will be for M37221MA-XXXSP unless otherwise noted. q OSD function Display characters 24 characters ✕ 2 lines (It is possible to display 3lines or more by software) Kinds of characters 256 kinds Character display area 12 ✕ 16 dots Kinds of character sizes 3 kinds Kinds of character colors 8 colors (R, G, B) Coloring unit character, character background, raster Display position Horizontal: 64 levels Vertical: 128 levels Attribute border 2. FEATURES q Number 3. APPLICATION TV of basic instructions 71 q Memory size ROM 16K bytes (M37221M4-XXXSP) 24K bytes (M37221M6-XXXSP/FP) 32K bytes (M37221M8-XXXSP) 40K bytes (M37221MA-XXXSP, M37221EASP/FP) RAM 320 bytes (M37221M4-XXXSP)...