Single-chip 16-bit Cmos Microcomputer Flash Memory Version Electric Semiconductor

These are single-chip microcomputers M37920FCCGP M37920FCCHP M37920FGCGP M37920FGCHP designed with high-perfor- mance CMOS silicon Gate technology, including the internal Flash memory. These are housed in 100-pin plastic molded QFP. These microcomputers support the 7900 Series instruction set, which are enhanced and expanded instruction set and are upper-compatible with the 7700/7751 Series instruction set. The CPU of these microcomputers is a 16-bit parallel processor that CAN also be switched to perform 8-bit parallel processing. Also, the bus Interface unit of these microcomputers enhances the memory access efficiency to execute instructions fast. These microcomputers include the 4-channel DMA controller and the DRAM controller. Therefore, these microcomputers are suitable for office, business, and industrial equipment controller that require fast processing of large data. For the internal Flash memory, single-power-supply programming and erasure, using a PROM programmer or the control by the cen- tral processing unit (CPU), is supported. Also, each of these micro- computers has the memory area dedicated for storing a certain software which controls programming and erasure (reprogramming control software). Therefore, on these microcomputers, the program CAN easily be changed even after they are mounted on the board. By Mitsumi Electronics, Corp.