With 16 KB of ROM and 236 bytes of general-purpose RAM, these low-cost, low-power-consumption CMOS Z86C61/C62/C96 MCUs offer fast execution, efficient use of memory, sophisticated interrupts, input/output bit manipulation capabilities, and easy hardware/software system expansion. A ROMless pin option on the Z86C61/C96 devices and the 44-pin version of the Z86C61 device enables these MCUs to address both external memory and preprogrammed ROM, making them well-suited for high-volume applications, or where code flexibility is required.