DS80C320

DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers www.maxim-ic.com FEATURES  80C32-Compatible 8051 Pin and Instruction Set Compatible Four 8-Bit I/O Ports Three 16-Bit Timer/Counters 256 Bytes Scratchpad RAM Addresses 64kB ROM and 64kB RAM  High-Speed Architecture 4 Clocks/Machine Cycle (8032 = 12) DC to 33MHz (DS80C320) DC to 18MHz (DS80C323) Single-Cycle Instruction in 121ns Uses Less Power for Equivalent Work Dual Data Pointer Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals  High-Integration Controller Includes: Power-Fail Reset Programmable Watchdog Timer Early Warning Power-Fail Interrupt  Two Full-Duplex Hardware Serial Ports  13 Total Interrupt Sources with Six External  Available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP PIN CONFIGURATIONS TOP VIEW The High-Speed Microcontroller User’s Guide must be used in conjunction with this data sheet. Download it at: www.maxim-ic.com/microcontrollers. Data sheets contain pin descriptions, ...