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8 Bit MCU, DS8 Family DS87C5xx Series Microcontrollers, 33 MHz, 16 KB, 1 KB, 40 Pins, DIP


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DS87C520-MCL+   Datasheet
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Product Range Selector (DS8 Family DS87C5xx Series Microcontrollers)

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Product Overview

The DS87C520-MCL+ is an EPROM/ROM high speed microcontroller in 40 pin DIP package. It is a fast 8051 compatible microcontroller. It features a redesigned processor core without wasted clock and memory cycles. As a result, the devices execute every 8051 instruction between 1.5 and 3 times faster than the original for the same crystal speed. The DS87C520 offer a maximum crystal speed of 33MHz resulting in apparent execution speeds of 82.5MHz (approximately 2.5X). It includes three timer/counters, serial port and four 8-bit I/O ports. It feature 16kB of EPROM or mask ROM with an extra 1kB of data RAM. It includes a second full hardware serial port, seven additional interrupts, programmable watchdog timer, brownout monitor and power-fail reset. The device also provides dual data pointers (DPTRs) to speed block data memory moves. It also can adjust the speed of MOVX data memory access from two to nine machine cycles for flexibility in selecting external memory and peripherals.
  • Supply voltage range is 4.5V to 5.5V
  • 4 clocks/machine cycle
  • Operating temperature range from 0°C to 70°C
  • 256bytes scratchpad RAM
  • Single cycle instruction in 121ns
  • High integration controller
  • 13 total interrupt sources with six external interrupts
  • Programmable clock source to save power
  • Provides automatic hardware and software exit
  • EMI reduction mode disables ALE


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Technical Documents (1)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Available for back order

More stock available to supplier lead times which is approximately 9/25/23

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice

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1+ Php2,918.50
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