M37273MF-XXXSP

• Number of basic instructions ..................................................... 71
• Memory size ROM ....................................................... 60 K bytes RAM........................................................ 1472 bytes (including ROM correction memory: 64 bytes) ROM for OSD ......................................... 10 K bytes RAM for OSD ............................................ 128 bytes
• Minimum instruction execution time ......................................... 0.5 s (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 P52P57, P6) ............................................. 14
• 12 V withstand ports.................................................................... 6
• LED drive ports ........................................................................... 4
• Serial I/O ............................................................ 8-bit 5 1 channel
• Multi-master I2C-BUS interface ................................ 1 (2 systems)
• A-D comparator (6-bit resolution) ................................. 6 channels
• PWM output circuit (8-bit)................................................ 8-bit 5 6
• ROM correction function ........................................... 32 bytes 5 2
• Power dissipation In high-speed mode ..........................................................165mW (at VCC = 5.5V, 8MHz oscillation frequency, CRT on, and Data slicer on)  In low-speed mode ...........................................................0.33mW (at VCC = 5.5V, 32 kHz oscillation frequency)
• Data slicer
• OSD function Display characters ................................. 32 characters 5 2 lines (16 lines maximum) Kinds of characters ..................................................... 254 kinds Character display area ........................ CC mode : 16 5 26 dots OSD mode : 16 5 20 dots Kinds of character sizes ................................. CC mode : 1 type OSD mode : 8 types  Kinds of character colors (It can be specified by the character) maximum 7 kinds Kings of character background colors ... CC mode : 1 type (black) OSD mode : 7 types (It can be specified by the character) Display position Horizontal ................................................................ 128 levels Vertical .................................................................... 512 levels Attribute ...................... CC mode : smooth italic, underline, flash OSD mode : border Kinds of raster colors (maximum 7 kinds) Smooth roll-up function Window function Automatic solid space

The M37273MF-XXXSP is a single-chip microcomputer designed with CMOS silicon gate technology. It is housed in a 52-pin shrink plastic molded DIP.

In addition to their simple instruction sets, the ROM, RAM and I/O addresses are placed on the same memory map to enable easy programming. The M37273MF-XXXSP has a OSD function and a data slicer function, so it is useful for a channel selection system for TV with a closed caption decoder. The features of the M37273EFSP are similar to those of the M37273MF-XXXSP except that these chips have a builtin PROM which can be written electrically.