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Eastern National 3000 CPU 979G, at Showbus Duxford. Sunday 16th September 2012. DSCN19744.

 

Bristol VRT-ECW.

MCU 8051 8bit;

 

Základný predstaviteľ MCU 8051 z rodiny MCS-51.

 

* Typ:80C51BH-3 Philips

* Rýchlosť: 33 MHz

* Prevedenie: DIP 40

* Napájanie:5V (2.7V .. 5.5V)

* Data: 8bit

* RAM: 128 Bytes

* ROM: 4 kB

* Časovače:3

* Porty: 4× 8

* Dostupné modely:

* 80C51BH-3 Philips

* Vhodné preúčely:

* obravy embedded zariadení

* domáce projekty

* výukovéúčely

* technicky orientované múzeá, archívy a výstavy

 

BB Elmix

One of the CPU cabins in Baguio City.

cpu in red and blue erse on the bottom..props to huke and phag

macro looking at the reflection across the cpu pins

CPU and associated circuits. EPROM with the white label on it.

 

The CPU is a MC146805E2, which is from the 6805 family.

It features an 8-bit counter, 16 I/O lines and 112 bytes of RAM.

Seems decent for the time period.

La CPU es el cerebro del ordenador. En términos de potencia del ordenador, la CPU es el elemento más importante de un sistema informático.

  

Rappresentazione grafica della suddivisione di famiglie di processori e schede madri

für das Buchprojekt einer befreundeten Autorin.

I hit save after a lot of edits in GIS...good thing it's lunchtime!

(Updating album with better photography)

Many inner-layer traces visible between the two mystery ASICs

 

Full description and reverse-engineering analysis here: www.eevblog.com/forum/projects/looking-inside-an-old-airc...

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