DS87C520-QNL+ Analog Devices

DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers www.maxim-ic.com FEATURES PIN CONFIGURATIONS 80C52 Compatible TOP VIEW 8051 Pin- and Instruction-Set Compatible Four 8-Bit I/O Ports Three 16-Bit Timer/Counters 256 Bytes Scratchpad RAM Large On-Chip Memory 16kB Program Memory 1kB Extra On-Chip SRAM for MOVX ROMSIZE Feature Selects Internal ROM Size from 0 to 16kB Allows Access to Entire External Memory Map Dynamically Adjustable by Software Useful as Boot Block for External Flash High-Speed Architecture 4 Clocks/Machine Cycle (8051 = 12) Runs DC to 33MHz Clock Rates Single-Cycle Instruction in 121ns Dual Data Pointer Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals Power Management Mode Programmable Clock Source to Save Power CPU Runs from (crystal/64) or (crystal/1024) Provides Automatic Hardware and Software Exit EMI Reduction Mode Disables ALE Two Full-Duplex Hardware Serial Ports High Integration Controller Includes: Power-Fail Reset Early-Warning Power-Fail Interrupt Programmable Watchdog Timer 13 Interrupt Sources with Six External Available in 40-pin PDIP, 44-Pin PLCC, 44-Pin TQFP, and 40-Pin Windowed CERDIP Factory Mask DS83C520 or EPROM (OTP) DS87C520 The High-Speed Microcontroller Users Guide must be used in conjunction with this data sheet. Download it at: www.maxim-ic.com/microcontrollers. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. 1 of 43 REV: 022207 DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers ORDERING INFORMATION MAX CLOCK PART TEMP RANGE PIN-PACKAGE SPEED (MHz) DS87C520-MCL 0C to +70C 33 40 Plastic DIP DS87C520-MCL+ 0C to +70C 33 40 Plastic DIP DS87C520-QCL 0C to +70C 33 44 PLCC DS87C520-QCL+ 0C to +70C 33 44 PLCC DS87C520-ECL 0C to +70C 33 44 TQFP DS87C520-ECL+ 0C to +70C 33 44 TQFP DS87C520-MNL -40C to +85C 33 40 Plastic DIP DS87C520-MNL+ -40C to +85C 33 40 Plastic DIP DS87C520-QNL -40C to +85C 33 44 PLCC DS87C520-QNL+ -40C to +85C 33 44 PLCC DS87C520-ENL -40C to +85C 33 44 TQFP DS87C520-ENL+ -40C to +85C 33 44 TQFP DS87C520-WCL* 0C to +70C 33 40 Windowed CERDIP DS83C520-MCL 0C to +70C 33 40 Plastic DIP DS83C520-MCL+ 0C to +70C 33 40 Plastic DIP DS83C520-QCL 0C to +70C 33 44 PLCC DS83C520-QCL+ 0C to +70C 33 44 PLCC DS83C520-ECL 0C to +70C 33 44 TQFP DS83C520-ECL+ 0C to +70C 33 44 TQFP DS83C520-MNL -40C to +85C 33 40 Plastic DIP DS83C520-MNL+ -40C to +85C 33 40 Plastic DIP DS83C520-QNL -40C to +85C 33 44 PLCC DS83C520-QNL+ -40C to +85C 33 44 PLCC DS83C520-ENL -40C to +85C 33 44 TQFP DS83C520-ENL+ -40C to +85C 33 44 TQFP + Denotes a lead(Pb)-free/RoHS-compliant device. * The windowed ceramic DIP package is intrinsically lead(Pb) free. 2 of 43