The DS80C310 is similar to the DS80C320 but with a reduced feature set for cost-sensitive applications. As a Dallas high-speed microcontroller, the DS80C310 benefits from a redesigned processor core that eliminates wasted clock cycles, so that 8051 instructions are performed at 33MHz at an 82.5MHz speed.
The DS80C310 provides the same resources as the standard 80C32-timer/counter, full-duplex serial port, 256 bytes of scratchpad RAM, and I/O ports- and adds dual data pointers (DPTRs) to speed block data memory moves. It also can adjust the speed of MOVX data memory access between two and nine machine cycles for flexibility in accessing external memory and peripherals.
The DS80C310 is available in two clock speeds and three packages and operates in the commercial or industrial temperature range. It speeds up performance in any 80C32 application.