DESCRIPTION
The M37272M6/M8-XXXSP/FP and M37272MA-XXXSP are single chip microcomputers designed ith CMOS silicon gate technology. They have a OSD, data slicer, and I2C-BUS interface, so it is useful for a channel selection system for TV with a closed caption decoder.
The features of the M37272E8SP/FP and M37272EFSP are similar to those of the M37272M6-XXXSP except that the chip has a built-in PROM which can be written electrically. The difference between M37272M6-XXXSP/FP, M37272M8-XXXSP/FP and M37272MA XXXSP are the ROM size and RAM size. Accordingly, the following descriptions will be for the M37272M6-XXXSP/FP.

FEATURES
● Number of basic instructions .................................................... 71
● Memory size
   ROM .............. 24K bytes
      (M37272M6-XXXSP/FP)
      32K bytes
      (M37272M8-XXXSP/FP, M37272E8SP/FP)
      40K bytes
      (M37272MA-XXXSP)
      60K bytes
      (M37272EFSP)
   RAM ............... 1024 bytes
      (M37272M6-XXXSP/FP)
      1152 bytes
      (M37272M8-XXXSP/FP, M37272E8SP/FP)
      1472 bytes
      (M37272MA-XXXSP, M37272EFSP)
      (*ROM correction memory included)
● Minimum instruction execution time
   ......................................... 0.5 µs (at 8 MHz oscillation frequency)
● Power source voltage ................................................. 5 V ± 10 %
● Subroutine nesting ............................................. 128 levels (Max.)
● Interrupts ....................................................... 17 types, 16 vectors
● 8-bit timers .................................................................................. 6
● Programmable I/O ports (Ports P0, P1, P2, P30, P31) ............. 26
● Input ports (Ports P50, P51) ........................................................ 2
● Output ports (Ports P52–P55) ..................................................... 4
● 12 V withstand ports ................................................................... 6
● LED drive ports ........................................................................... 4
● Serial I/O ............................................................ 8-bit ✕ 1 channel
● Multi-master I2C-BUS interface .............................. 1 (2 systems)
● A-D comparator (6-bit resolution) ................................ 6 channels
● PWM output circuit ......................................................... 8-bit ✕ 6
● Power dissipation
   In high-speed mode ......................................................... 165 mW
   (at VCC = 5.5V, 8 MHz oscillation frequency, OSD on, and Data
   slicer on)
   In low-speed mode ......................................................... 0.33 mW
   (at VCC = 5.5V, 32 kHz oscillation frequency)
● ROM correction function ................................................ 2 vectors
● Closed caption data slicer
● OSD function
   Display characters ................................... 32 characters ✕ 2 lines
   (It is possible to display 3 lines or more by software)
   Kinds of characters ........................................................ 254 kinds
   Character display area ............................ CC mode: 16 ✕ 26 dots
   OSD mode: 16 ✕ 20 dots
   Kinds of character sizes ..................................... CC mode: 1 kind
   OSD mode: 8 kinds
   Kinds of character colors .................................. 8 colors (R, G, B)
   Coloring unit ................... character, character background, raster
   Display position
   Horizontal: 128 levels Vertical: 512 levels
   Attribute ........................................................................................
   CC mode: smooth italic, underline, flash, automatic solid space
   OSD mode: border
   Smoth roll-up
   Window function

APPLICATION
   TV with a closed caption decoder