LC66354B

Ordering number : EN4677 CMOS LSI LC66354B, 66356B, 66358B Four-bit Single-Chip Microcontrollers On-Chip 4 K/6 K/8 K-byte ROM Overview The LC66354B, LC66356B and LC66358B are 42-pin package four-bit CMOS microcontrollers that integrate on a single chip all functions required in a control microcontroller, including ROM, RAM, I/O ports, serial interfaces, comparator inputs, three-value inputs, timers and an interrupt system. These products differ from the earlier LC66358A series in their power supply voltage range and operating speed specifications. Features and Functions ROM (with 4 K-, 6 K- and 8 K-byte capacities) and RAM (512 4-bit digits) on chip LC66000 series compatible instruction set (128 instructions) A total of 36 I/O port pins Two eight-bit serial interfaces that can be connected in cascade to form a 16-bit interface Instruction cycle time: 0.92 to 10 µs (3 to 5.5 V) The earlier LC66358A series had instruction cycle times of from 1.96 to 10 µs (at 3 to...