DS80C310 Datasheet | Maxim Integrated

DESCRIPTION The DS80C310 is a fast 80C31/80C32-patible microcontroller. It features a redesigned processor core without wasted clock and memory cycles. As a result, it executes every 8051 instruction between 1.5x and 3x faster than the original architecture for the same crystal speed. Typical applications have a speed improvement of 2.5x using the same code and the same crystal. The DS80C310 offers a 25MHz maximum crystal speed, resulting in apparent execution speeds of 62.5MHz (approximately 2.5x). The DS80C310 is pin patible with the standard 80C32 and includes standard resources such as three timer/counters, 256 bytes of RAM, and a serial port. It also provides 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 selecting external memory and peripherals. The DS80C310 offers upward patibility with the DS80C320. FEATURES - 80C32 patible 8051 Pin and Instruction Set patible Full-Duplex Serial Port Three 16-Bit Timer/Counters 256 Bytes Scratchpad RAM Multiplexed Address/Data Bus Addresses 64k B ROM and 64k B RAM - High-Speed Architecture 4 Clocks/Machine Cycle (8051 = 12) Runs DC to 25MHz Clock Rates Single-Cycle Instruction in 160ns Dual Data Pointer Optional Variable Length MOVX to Access Fast/Slow RAM /Peripherals - 10 Total Interrupt Sources with 6 External - Internal Power-On Reset Circuit - Upwardly patible with the DS80C320 - Available in 40-Pin Plastic DIP, 44-Pin PLCC, and 44-Pin TQFP DS80C310 High-Speed Microcontroller PIN CONFIGURATIONS TOP VIEW Note: Designers must have two documents to fully use all the features of this device: this data sheet and the High-Speed Microcontroller User’s Guide, available on our website at .maximic./microcontrollers. Data sheets contain pin descriptions, feature overviews, and electrical specifications, whereas the user’s guide contains detailed information about device features and operation. Note: Some...