What kind of IC is this

Chuck Guzis cclist at sydex.com
Tue Dec 30 16:59:43 CST 2008

On 30 Dec 2008 at 16:30, Jules Richardson wrote:

> What do people do regarding microcontrollers (old or new) with embedded ROM? I 
> mean an EPROM or PROM's just address lines and data, so reasonably easy to 
> dump - but presumably life's a bit more difficult when the ROM is local to the 
> CPU...

It depends on the vendor and the uC.  Many uCs can have their program 
be read back quite easiy (in cirucit) *if* the security fuses aren't 
blown.  But the same goes for a lot of programmable logic, doesn't 


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