M37274MA-xxxSP

MITSUBISHI MICROCOMPUTERS PRELIMINARY M37274MA-XXXSPNSootimcee: pTahriasmisennotitcalimfinitasl asrpeecsiufibcjaetciotnto. change. SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER DESCRIPTION The M37274MA-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 M37274MA-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. FEATURES Number of basic instructions ..................................................... 71 Memory size ROM ....................................................... 40 K bytes RAM ..........................................................768 bytes ROM correction memory ............................. 64 bytes ROM for OSD ....................................... 11072 bytes RAM for OSD .......................................... 1296 bytes Minimum instruction execution time ......................................... 0.5 µs (at 8 MHz oscillation frequency) Power source voltage ................................................... 5 V ± 10 % Subroutine nesting ............................................. 128 levels (Max.) Interrupts ....................................................... 18 types, 16 vec...