7540

PRELIMINARYNSootimcee: pTahriasmisentroict alimfinitsalasrpeescuifbicjeactitotno. change. MITSUBISHI MICROCOMPUTERS 7540 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER DESCRIPTION The 7540 Group is the 8-bit microcomputer based on the 740 family core technology. The 7540 Group has a serial I/O, 8-bit timers, a 16-bit timer, and an A-D converter, and is useful for control of home electric appliances and office automation equipment. FEATURES Basic machine-language instructions ....................................... 71 The minimum instruction execution time .......................... 0.50 µs (at 8 MHz oscillation frequency for the shortest instruction) Memory size ROM ............................................ 16K to 32K bytes RAM .............................................. 512 to 768 bytes Programmable I/O ports ........................................................... 29 (25 in 32-pin version) Interrupts .................................................. 15 so...