MAXIM INTEGRATED / ANALOG DEVICES DS87C520-MNL+ Datasheet & Stock

The DS87C520-MNL+ 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 -40°C to +85°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





Applications


Embedded Design & Development





Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.