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Cross References

Sierra IC©'s exclusive cross-reference search tool allows you to find replacements for obsolete or long lead time parts. With this information, you can save time and money by locating alternative parts for your projects quickly and efficiently.The information presented in Sierra IC�'s exclusive cross-reference search tool is based on our best estimate of the manufacturers' published information at the time that it was collected. This information is for suggestion purposes only. We recommend that you completely review the manufacturers' datasheet to confirm the device's functionality, pinout, and performance for your application. Sierra IC� is not responsible for any incorrect or incomplete information.

Cross reference

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Part Number		Cross Reference Page 1 of 1
P87C51 80C51 8-bit microcontroller family 4 K/8 K OTP/ROM low voltage (2.7 V-5.5 V), low power, high speed (33 MHz), 128/256 B RAM INTEL		AT89C51-12PC 8-bit microcontroller with 4K bytes flash, 5V, 12MHz,PDIP40 ATMEL
P87C51UBPN 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage 2.7V.5.5V, low power, high speed 33 MHz PHILIPS SEMICONDUCTORS		AT89C51-12PC 8-bit microcontroller with 4K bytes flash, 5V, 12MHz,PDIP40 ATMEL
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