While working on new chapters for Kenneth J. Ayala's Book on 8051 Microcontroller with Prof. Dhananjay Gadre, I had this desire to collect as many actual samples of 8051 variants as possible. I already had a sample of the original 8051 and Gadre sir was able to find me some 87C51s. I was able to add some more samples to my collection over the past 2 years. I put them all in a nice box, labelled them and presented the collection to LARE's Learning Center, Belapur, India for use as a teaching aid during their workshops/seminars/courses. Its fun to collect stuff! I hope this collection will help students realize the ubiquity of the 8051 based microcontrollers - they come in all sizes and have a wide range of feature sets, and even today they are installed in way too many systems as compared to other family of microcontrollers. Here are a few snaps of my humble collection:
The Box:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQkqbnkxN5RJ0jQYvri0fxrDw1Zx4hY0Y0S7RzuBdFPGHcCfP9T5UxjuPhUQX5xgJhoP9jDnzo4g_AbXG3FOh_yrYKY9x1Wv8GFekYCshv3bzu8fDtiVz5AsNUDQ8b5EG2QfSsPe4VPlU/s400/DSC_0032.jpg)
The 8051s:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLagpqPaQD3aQloHF8cXcLzxjjw79je9BeWaMfGm9uawuMYu-ABkzK7O0LAd4rR80tquxfhK5eppFv9Q15BC7sluhtfgYZVU22lmXRZ6uIdD1L18ariw4dBpZT6ZSkQx8xJrC3hDMnBOk/s400/DSC_0035.jpg)
Their labels on the box covers (part numbers and specs - image mirrored & rotated)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6V1fFeoitW7bcpRpq3o2DCBD7JzV-EJUhQsj0gZkIdTHkFFlTfLaPPcDvvOzEvoYqGABaEELVzkH30OBq2yvu-yDdbnQfsqNDb28RUPd-9PslV_iz21SOTkqGymp8bHIN3JH-qc5hhy8/s400/DSC_0042.jpg)
The SMD ones in detail:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsJx8GmEgc5E4hfDtrVajtMywTXOQLrJVHCZn0Fw1MrizWYwLF82Gkyldq7VMuXl4Ior_9CwdRgyK6DkqGhKMKPLDhxfBmfknjCP3Km-_M25kE_l6_tDZD2WqpSM25OPJNNJ3GuOg3cnY/s400/DSC_0039.jpg)
Keil maintains a database of datasheets of all 8051 variants.
The Box:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQkqbnkxN5RJ0jQYvri0fxrDw1Zx4hY0Y0S7RzuBdFPGHcCfP9T5UxjuPhUQX5xgJhoP9jDnzo4g_AbXG3FOh_yrYKY9x1Wv8GFekYCshv3bzu8fDtiVz5AsNUDQ8b5EG2QfSsPe4VPlU/s400/DSC_0032.jpg)
The 8051s:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLagpqPaQD3aQloHF8cXcLzxjjw79je9BeWaMfGm9uawuMYu-ABkzK7O0LAd4rR80tquxfhK5eppFv9Q15BC7sluhtfgYZVU22lmXRZ6uIdD1L18ariw4dBpZT6ZSkQx8xJrC3hDMnBOk/s400/DSC_0035.jpg)
Their labels on the box covers (part numbers and specs - image mirrored & rotated)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6V1fFeoitW7bcpRpq3o2DCBD7JzV-EJUhQsj0gZkIdTHkFFlTfLaPPcDvvOzEvoYqGABaEELVzkH30OBq2yvu-yDdbnQfsqNDb28RUPd-9PslV_iz21SOTkqGymp8bHIN3JH-qc5hhy8/s400/DSC_0042.jpg)
The SMD ones in detail:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsJx8GmEgc5E4hfDtrVajtMywTXOQLrJVHCZn0Fw1MrizWYwLF82Gkyldq7VMuXl4Ior_9CwdRgyK6DkqGhKMKPLDhxfBmfknjCP3Km-_M25kE_l6_tDZD2WqpSM25OPJNNJ3GuOg3cnY/s400/DSC_0039.jpg)
Keil maintains a database of datasheets of all 8051 variants.
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